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Filler Neck Supply Co
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Your Filler Neck And Hose Specialist!

  • FACTORY REPLACEMENT FUEL FILLER NECKS
    • Show All
    • Acura
      • 1.6 EL
      • CSX
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    • Kaiser
      • M715 Military Jeep
    • Daewoo
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    • BMW
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      • Caliber
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      • Ranchero
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      • Explorer Sport Trac Filler Neck
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      • F150
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      • Tempo
      • Thunderbird
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    • Geo
      • Metro
      • Prizm
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      • Storm
      • Tracker
    • Hummer
      • H1
      • H2
    • GMC
      • C3500
      • Savana 1500
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      • C4500
      • Acadia
      • C/K 10
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    • Hyundai
      • Tucson
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      • XG 300
    • Infiniti
      • QX56
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      • Eclipse
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      • Versa
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      • Pathfinder
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      • Barracuda - Cuda
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    • Pontiac
      • 1000
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      • Aztek
      • Bonneville
      • Firebird
      • Grand AM
      • Grand Prix
      • Montana
      • sunbird
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    • Porsche
    • SAAB
      • 9-7X
    • SCION
      • XB Fuel Filler Neck Parts
    • Subaru
      • Forester
      • Impreza
      • Legacy
      • Outback
      • SVX
    • Saturn
      • Outlook
      • L Series
      • L100
      • L200
      • L300
      • LS
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      • LW1
      • LW2
      • LW200
      • LW300
      • Relay
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    • Toyota
      • 4Runner
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      • Camry
      • Celica
      • Corolla
      • Echo
      • Highlander
      • Matrix
      • Pickup
      • Previa
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      • RAV4
      • Sequoia
      • Sienna
      • Solara
      • Tacoma
      • Tercel
      • Tundra
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    • Volvo
  • 1) Utility Body / Flatbed, Bed Takeoff Fill Necks
    • Show All
    • Diesel Fuel Neck
      • 1-1/2" OD Main
      • 1-3/4" OD Main
      • 2" OD Main
      • 2-1/4" OD Main
      • 2-1/2" OD Main
    • Gasoline Neck
      • 1" OD Main
      • 1-1/8" OD Main
      • 1-1/4" OD Main
      • 1-1/2" OD Main
      • 1-3/4" OD Main
      • 2" OD Main
      • 2-1/4" OD Main
      • 2-1/2" OD Main
    • Diesel Exhaust Fluid / Urea DEF
  • 2) Fuel Filler Hose (Straight)
    • Show All
    • 3/16" or 5mm Diameter
    • 1/4" or 6mm Diameter
    • 5/16" or 8mm Diameter
    • 3/8" or 10mm Diameter
    • 7/16" or 11mm Diameter
    • 1/2" or 13mm Diameter
    • 5/8" or 16mm Diameter
    • 3/4" or 19mm Diameter
    • 1" or 25mm Diameter
    • 1-1/8" or 29mm Diameter
    • 1-1/4" or 32mm Diameter
    • 1-3/8 or 35mm Diameter
    • 1-1/2" or 38mm Diameter
    • 1-5/8" or 41mm Diameter
    • 1-3/4 or 44mm Diameter
    • 1-7/8" or 48mm Diameter
    • 2" or 51mm Diameter
    • 2-1/4 or 57mm Diameter
    • 2-1/2" or 63.5mm Diameter
    • 3" Fuel Fill Hose
  • 3) Fuel Filler Hose (Elbows)
    • Show All
    • 30 Degree Fuel / Diesel Elbows
      • 1-1/2" or 38mm I.D.
      • 2" or 51mm I.D.
    • 45 Degree Fuel / Diesel Elbows
      • 1/4" Fuel Line 45° Elbows .25" I.D.
      • 5/16" Fuel Line Elbows - 8mm I.D.
      • 3/8" Fuel Line Elbows - 10mm I.D.
      • 1-1/4" or 32mm Diameter
      • 1-3/8" Or 35mm Inner Diameter
      • 1-1/2" or 38mm Diameter
      • 1-5/8" Or 41mm Inner Diameter.
      • 1-3/4" or 44mm Diameter
      • 2" or 51mm Diameter
      • 2-1/4" or 57mm Diameter
      • 2-1/2" or 64mm Diameter
    • 60° Degree Fuel/ Diesel Elbows
      • 2" or 51mm I.D.
      • 2-1/4" or 57mm I.D.
    • 90 Degree Fuel / Diesel Elbows
      • 1/4" Fuel Line 90° Elbows - .25 I.D.
      • 5/16" Fuel Line Elbows - 8mm
      • 3/8" Fuel Line Elbows - 10mm
      • 1/2" or 13mm Diameter
      • 5/8" Or 16mm Diameter
      • 3/4" or 19mm Inner Diameter
      • 1" or 25mm Diameter
      • 1-1/8" or 29mm Inner Diameter
      • 1-1/4" or 32mm Diameter
      • 1-3/8" or 35mm Inner Diameter
      • 1-1/2" or 38mm Diameter
      • 1-5/8" Or 41mm Inner Diameter.
      • 1-3/4" or 44mm Diameter
      • 2" or 51mm Diameter
      • 2-1/4" or 57mm Diameter
      • 2-1/2" or 64mm Diameter
      • 3" or 76mm Diameter
    • 135° Degree Fuel / Diesel Elbows
    • 180° Degree Fuel Hose - Lines - Pipes
  • 4) Filler Neck Buckets / Housings / Doors
    • Show All
    • Fuel Doors (Universal)
    • 21 & 22 Degree Angle
    • 30 Degree Angle
    • 42 Degree Angle
    • 53° Degree Angle
    • 55° Degree Angle
    • 57° Degree Angle
    • RV Filler Neck Surrounds
      • Champion RV Filler Neck Surrounds
      • Fireball RV Filler Neck Surrounds
      • Fleetwood Filler Neck Surrounds
      • Georgie Boy Filler Neck Surrounds
      • Mobile RV Filler Neck Surrounds
      • Pace Arrow RV Filler Neck Surrounds
      • Southwind RV Filler Neck Surrounds
      • Sportcoach RV Filler Neck Surrounds
      • Tioga RV Filler Neck Surrounds
      • Transvan Rv Filler Neck Surrounds
      • Winnebago Rv Filler Neck Surrounds
  • 5) Fuel Filler Hose Couplers / Joiners
    • Show All
    • 1/4" OR 6mm
    • 5/16" or 8mm Joiner
    • 3/8 or 10mm
    • 1/2" or 13mm
    • 5/8" or 16mm
    • 3/4" or 19mm
    • 1" or 25mm
    • 1-1/8" or 29mm
    • 1-1/4" or 32mm
    • 1-3/8" or 35mm
    • 1-1/2" or 38mm
    • 1-5/8" or 41mm
    • 1-3/4" or 44mm
    • 1-7/8" or 48mm
    • 2" or 51mm
    • 2-1/4" or 57mm
    • 2-1/2" or 64mm
  • 6) HOSE REDUCERS
    • Show All
    • 5/16" to 1/4" Fuel Hose Line Reducer
    • 3/8" to 1/4" Fuel Line Reducer
    • 3/8" to 5/16" Fuel Hose Reducer
    • 1/2" to 3/8" Reducer
    • 1/2" To 5/8" Reducer
    • 1/2" to 3/4" Reducer
    • 3/8" to 5/8" Reducer
    • 5/8" to 3/4" Reducer
    • 3/4" to 1" Reducer
    • Starting @ 1" OD Small End
      • 1-1/4" To 1" Fuel ID Reducer.
      • 1" to 1-1/8" or 25-29mm Reducer
      • 1" to 1-1/4" Reducer
      • 1" to 1-3/8" or 25-35mm Reducer
      • 1" to 1-1/2" or 25-38mm
    • Starting @ 1-1/8" OD Small End.
      • 1-1/4" To 1-1/8" Rubber Hose End ID Reducer.
    • Starting @ 1-1/4" OD Small End
      • 1-1/2" to 1-1/4" Hose ID Reducer.
      • 1-1/4" to 1-3/8" or 32-35mm Reducer
      • 1-1/4" to 1-1/2" or 32-38mm Reducer
      • 1-1/4" to 1-5/8" or 32-41mm Reducer
      • 1-1/4" to 1-3/4" or 32-44mm Reducer
    • Starting @ 1-3/8" OD Small End.
      • 1-3/8" TO 1-1/2" or 35-38mm Reducer
      • 1-3/8" TO 1-5/8" or 35-41mm Reducer
      • 1-3/8" TO 1-3/4" or 35-44mm Reducer
      • 1-3/8" TO 1-7/8" or 35-48mm Reducer
    • Starting @ 1-1/2" OD Small End
      • 1-3/4" to 1-1/2" Inner Diameter Reducer.
      • 1-1/2" to 1-5/8" or 38-41mm Reducer
      • 1-1/2" to 1-3/4" or 38-44mm Reducer
      • 1-1/2" to 1-7/8" or 38-48mm Reducer
      • 1-1/2" to 2" or 38-51mm Reducer
    • Starting @ 1-5/8" OD Small End
      • Starting @ 1-5/8" OD Small End
    • Starting @ 1-3/4" OD Small End
      • 2" to 1-3/4" Hose ID Reducer.
      • 1-3/4" to 1-7/8" or 44mm-48mm Reducer
      • 1-3/4" to 2" or 44-51mm Reducer
      • 1-3/4" to 2-1/4" or 44-57mm Reducer
      • 1-3/4" to 2-1/2" or 44-64mm Reducer
    • Starting @ 1-7/8" OD Small End
      • 2" To 1-7/8" ID Reducer
      • 1-7/8" to 2-1/4" or 48-57mm Reducer
    • Starting @ 2" OD Small End
      • 2-1/4" to 2" Hose ID Reducer.
      • 2" to 2-1/4" or 51-57mm Reducer
      • 2" to 2-3/8" or 51-60mm Reducer
      • 2" to 2-1/2" or 51-64mm Reducer
    • Starting @ 2-1/4" OD Small End
  • 7) Billet Fuel Filler Necks
    • Show All
    • 1" or 25mm Diameter
    • 1-5/8" or 41mm Diameter
    • 1-1/2" or 38mm Diameter
    • 2" or 51mm Diameter
    • 2-1/2" or 64mm Diameter
    • 3" Inch or 76mm Billet Filler Neck
  • 9) Radiator / Coolant Filler Neck
    • Show All
    • Coolant Expansion Tank
    • In Line Radiator Hose Fill Necks & Adapters
      • 1-1/4" 32mm O.D. inline Radiator Hose Filler Neck
      • 3/4" or 19mm O.D. inline Radiator Hose Filler Neck
      • 1-1/2" 38mm O.D. Inline Radiator Hose Filler Neck
      • 1-3/4" / 44mm O.D. Inline Radiator Hose Adapters
    • Cold Rolled Steel Radiator Type Filler Neck
    • Aluminum Radiator Type Filler Neck
    • Brass Radiator Type Filler Neck
    • Stainless Steel Radiator Type Filler Neck
    • Radiator Cap
      • 4 Psi Radiator Cap
      • 7 lbs Radiator Cap
      • 10 lbs Radiator Cap
      • 13 lbs Radiator Cap
      • 15 lbs Radiator Cap
      • 16 lbs Radiator Cap
      • 18 lbs Radiator Cap
      • 20 lbs Radiator Cap
      • Non Pressurized
  • 10) Weld In Filler Necks
    • Show All
    • 1.50" Or 38mm Filler Necks
    • 1-5/8" or 41mm O.D. Filler Necks & Caps
    • 1.75 or 44mm O.D. Filler Necks
    • 2" or 51mm O.D. Filler Necks
      • Cap
      • Filler Neck
    • 2-1/4" or 57mm Filler Necks
      • Filler Neck
    • 2.28" or 58mm Filler Necks & Caps
      • Filler Cap
      • Filler Neck
    • 2.38 O.D. (Or 2NPT)
    • 2.50 or 64mm Filler Necks & Caps
      • Filler Cap
      • Filler Neck
      • Strainer/Screen
    • 2.59" or 66mm Filler Necks & Caps
      • Cap
      • Filler Neck
    • 3" or 76mm Filler Necks
      • 3" Inch Filler Neck
      • Cap
    • 4" Or 101.8mm Filler Neck
    • 4.25" or 108mm Diameter
      • Filler Neck
      • Filler Cap
      • Strainer/ Screen
    • 4.31" or 84mm Diameter
      • Cap
      • Filler Neck
    • 4NPT - 4.35 O.D. Threaded
  • 11) Flip Top Gas Caps
    • Show All
    • Aston Gas Caps
      • 2.5"
      • 2.75"
      • 3.5"
      • 3.5'
    • Cobra / Lemans Flip Top Gas Caps
    • Monza Gas Caps
      • 2"
      • 2.5"
      • 2.75"
  • 12) AERO Flush Mount Gas Caps
    • Show All
    • 3-1/8" Outer Diameter - 200 Series Aero Caps
    • 3-3/4" Outer Diameter - 300 Series Aero Caps
    • 4-3/4" Outer Diameter - 400 Series Aero Caps
    • 5" Outer Diameter - 600 Series Aero Caps
    • 5-1/2" Outer Diameter - 500 Series Fuel Caps
  • 14) DEF Hose & Fittings
    • Show All
    • DEF Filler Necks
    • 1" DEF Hose
    • 1/2" Inch DEF Hose
    • 3/4" DEF Hose
    • 1-1/4" DEF Hose
    • 1-1/2 DEF Hose.
    • 2" DEF Hose.
    • Reducers - Urea DEF Diesel Exhaust Fluid Hose
    • Hose Connectors - DEF Diesel Emissions Fluid
      • UREA BSPP BRITISH STANDARD PIPE FITTINGS
      • NPT UREA DEF FITTINGS
    • Housings - Filler Neck Protector / Bezels
    • UREA DEF FITTINGS
  • 16) Threaded Necks Bungs And Caps.
    • Show All
    • 4"NPT Threaded Filler Necks & Caps
  • Misc
    • Show All
    • 8) Twist On - Bayonet Filler Necks & Caps
      • Hydraulic Necks Caps And Strainer Screens
      • Turtle Caps
      • 1.75 Diameter
      • 2.28" Diameter
      • 2.50" Diameter
      • 2.59" Diameter
      • 3.00" Diameter
      • 4.31" Inch O.D Bayonet Weld In Filler Neck
      • 4.25" Diameter
    • 13) Fuel Cell Parts Filler Cap Parts
    • 15) Filler Neck Grommet - Seal
      • Universal Filler Neck Mounting Grommets
      • AMC Fuel Filler Neck Grommets
      • Chevrolet / GMC
      • Dodge, Chrysler, Plymouth
      • Ford, Lincoln, Mercury
      • John Deere Tractor Filler Neck Grommets & Seals
    • 17) Marine Deck Filler
      • 1-1/2" OD Angled Marine Deck Fill
      • 2" Inch Angled Marine Deck Fill
      • 1-1/2" Inch OD Marine Deck Filler
      • 2"inch OD Marine Deck Filler
    • 18) Motorcycle Gas Caps & Filler Necks
      • Cafe Racer / Classic Street Bike Gas Caps
      • Custom Superbike Flush Mount Aero Caps
      • Weld In Custom Cycle Gas Caps
    • 19) Universal Fuel Filler Neck
      • Gas Engine
      • Diesel Engine
    • 20) Auxiliary Diesel Transfer Tank Adapter Kits
      • 1988-2010 GM Auxiliary Transfer Tank Install Kit
      • 2011-2018 Chevy Aux Transfer Tank Adapter Kit
      • 1998-2012 Dodge Ram 2500 3500 Auxiliary Tank Kit
      • 2013-2018 Dodge Ram Diesel Transfer Tank Install
      • 1999-17 Ford F250 F350 Auxiliary Tank Install Kit
    • 21) Bolt On Fuel Filler Neck And Cap
    • Marine Fuel / Coolant / Wet Exhaust Hose
      • 1" or 25mm Diameter
      • 1-1/8" or 29mm Diameter
      • 1-1/4" or 32mm Diameter
      • 1-3/8" or 35mm Diameter
      • 1-1/2" or 38mm Diameter
      • 1-5/8" or 41mm Diameter
      • 1-3/4" or 44mm Diameter
      • 1-5/16" or 33mm Diameter
      • 1-7/8" or 48mm Diameter
      • 2" or 51mm Diameter
      • 2-1/4" or 57mm Diameter
      • 2-1/8" or 54mm Diameter
      • 2-1/2" or 64mm Diameter
      • 2-3/4" or 70mm Diameter
      • 2-3/8" or 60mm Diameter
      • 2-5/8" or 67mm Diameter
      • 2-7/8" or 73mm Diameter
      • 3" or 76mm Diameter
    • Fuel Line Fittings - Connectors - Adapters
      • Fuel Line Check Valve
      • Fuel Line Bulkhead Fittings
      • Threaded Fuel Line Connectors - SAE
      • Threaded Fuel Line Connector - METRIC
      • Flexible Rubber and Nylon Fuel Line
      • Bundy Quick Connect Fuel Line Fittings
      • Male Fuel Hose Quick Connectors - FuelFlex
      • Compression Fittings & Adapters Fuel Line
      • Male To Female Fuel Line Adapters
      • Fuel Line Reducers
      • Fuel Pump - Pressure Repair Kits
    • Stant / Motorad / Gates Fuel Gas Caps
      • Custom And Decorative Gas & Diesel Caps
      • Gas Cap 31843 And Locking Cap 31844
      • Gates 31830D Three Prong Diesel Cap
      • Gates 31841 and Locking 31842 Gas Cap
      • Harley Davidson Threaded Fuel Cap
      • Threaded Diesel Cap
      • Vented Fuel Caps
      • Threaded Gas Cap 31833 And 31780
      • GM Quick Turn Cap Triangle year 1998-2001
    • A) Fuel Tank Parts - Gas and Diesel
      • NPT Pipe Fittings / Connectors / Adapters
      • Universal Fuel Level Sensor / Sending Unit
      • Bolt On Fuel Tank Inlet Hose Fittings
      • Barbed Hose Fittings
      • Weld In Bung
      • Gas Tank Breather / Fuel Tank Vent (External)
      • Fuel Tank Rollover Safety Vent Valve
      • Fuel Tank Pickup Tubes & Parts
      • Fuel Pickup Filters & Screens
      • Anti Spitback Back / Wellback Check Valve's
      • Fuel Pump
    • B) Metal Tubing
    • C) Semi & Tractor Trailer Diesel Fuel Caps
      • Borg Warner Diesel Fuel Caps For Steel Tanks 2NPSH
      • Ford 2NPSH Heavy Duty Diesel Fuel Cap 2NPT
      • Freightliner - Quarter Turn Diesel Caps
      • Freightliner - Diesel Tank Caps = 2.5”-8 UN
      • Freightliner 3.0-8 NPSL CAPS
      • Volvo Diesel Fuel Cap (low Sulfur) 3.0‐8 UNNS
      • Kenworth - International - Fuel Caps = 3.5-5.5 NS
      • Peterbilt - Fill Necks & Fuel Caps = 4NPT
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Parts & Pieces

Categories

  • FACTORY REPLACEMENT FUEL FILLER NECKS
    • Acura
      • 1.6 EL
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    • Kaiser
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    • Daewoo
      • Lanos Fuel Filler Neck
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        • Fuel Filler Neck - Gas Tank Pipe - Tube - Hose
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        • Fuel Filler Neck - Gas Tank Pipe Tube Hose
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        • 1999 2000 Civic Fuel Filler Neck Gas Tank Pipe
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        • Galant Fuel Filler Neck Gas Tank PIpe
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    • Porsche
    • SAAB
      • 9-7X
    • SCION
      • XB Fuel Filler Neck Parts
    • Subaru
      • Forester
      • Impreza
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      • Outlook
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      • L100
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    • Toyota
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  • 1) Utility Body / Flatbed, Bed Takeoff Fill Necks
    • Diesel Fuel Neck
      • 1-1/2" OD Main
      • 1-3/4" OD Main
      • 2" OD Main
      • 2-1/4" OD Main
      • 2-1/2" OD Main
    • Gasoline Neck
      • 1" OD Main
      • 1-1/8" OD Main
      • 1-1/4" OD Main
      • 1-1/2" OD Main
      • 1-3/4" OD Main
      • 2" OD Main
      • 2-1/4" OD Main
      • 2-1/2" OD Main
    • Diesel Exhaust Fluid / Urea DEF
  • 2) Fuel Filler Hose (Straight)
    • 3/16" or 5mm Diameter
    • 1/4" or 6mm Diameter
    • 5/16" or 8mm Diameter
    • 3/8" or 10mm Diameter
    • 7/16" or 11mm Diameter
    • 1/2" or 13mm Diameter
    • 5/8" or 16mm Diameter
    • 3/4" or 19mm Diameter
    • 1" or 25mm Diameter
    • 1-1/8" or 29mm Diameter
    • 1-1/4" or 32mm Diameter
    • 1-3/8 or 35mm Diameter
    • 1-1/2" or 38mm Diameter
    • 1-5/8" or 41mm Diameter
    • 1-3/4 or 44mm Diameter
    • 1-7/8" or 48mm Diameter
    • 2" or 51mm Diameter
    • 2-1/4 or 57mm Diameter
    • 2-1/2" or 63.5mm Diameter
    • 3" Fuel Fill Hose
  • 3) Fuel Filler Hose (Elbows)
    • 30 Degree Fuel / Diesel Elbows
      • 1-1/2" or 38mm I.D.
      • 2" or 51mm I.D.
    • 45 Degree Fuel / Diesel Elbows
      • 1/4" Fuel Line 45° Elbows .25" I.D.
      • 5/16" Fuel Line Elbows - 8mm I.D.
      • 3/8" Fuel Line Elbows - 10mm I.D.
      • 1-1/4" or 32mm Diameter
      • 1-3/8" Or 35mm Inner Diameter
      • 1-1/2" or 38mm Diameter
      • 1-5/8" Or 41mm Inner Diameter.
      • 1-3/4" or 44mm Diameter
      • 2" or 51mm Diameter
      • 2-1/4" or 57mm Diameter
      • 2-1/2" or 64mm Diameter
    • 60° Degree Fuel/ Diesel Elbows
      • 2" or 51mm I.D.
      • 2-1/4" or 57mm I.D.
    • 90 Degree Fuel / Diesel Elbows
      • 1/4" Fuel Line 90° Elbows - .25 I.D.
      • 5/16" Fuel Line Elbows - 8mm
      • 3/8" Fuel Line Elbows - 10mm
      • 1/2" or 13mm Diameter
      • 5/8" Or 16mm Diameter
      • 3/4" or 19mm Inner Diameter
      • 1" or 25mm Diameter
      • 1-1/8" or 29mm Inner Diameter
      • 1-1/4" or 32mm Diameter
      • 1-3/8" or 35mm Inner Diameter
      • 1-1/2" or 38mm Diameter
      • 1-5/8" Or 41mm Inner Diameter.
      • 1-3/4" or 44mm Diameter
      • 2" or 51mm Diameter
      • 2-1/4" or 57mm Diameter
      • 2-1/2" or 64mm Diameter
      • 3" or 76mm Diameter
    • 135° Degree Fuel / Diesel Elbows
    • 180° Degree Fuel Hose - Lines - Pipes
  • 4) Filler Neck Buckets / Housings / Doors
    • Fuel Doors (Universal)
    • 21 & 22 Degree Angle
    • 30 Degree Angle
    • 42 Degree Angle
    • 53° Degree Angle
    • 55° Degree Angle
    • 57° Degree Angle
    • RV Filler Neck Surrounds
      • Champion RV Filler Neck Surrounds
      • Fireball RV Filler Neck Surrounds
      • Fleetwood Filler Neck Surrounds
      • Georgie Boy Filler Neck Surrounds
      • Mobile RV Filler Neck Surrounds
      • Pace Arrow RV Filler Neck Surrounds
      • Southwind RV Filler Neck Surrounds
      • Sportcoach RV Filler Neck Surrounds
      • Tioga RV Filler Neck Surrounds
      • Transvan Rv Filler Neck Surrounds
      • Winnebago Rv Filler Neck Surrounds
  • 5) Fuel Filler Hose Couplers / Joiners
    • 1/4" OR 6mm
    • 5/16" or 8mm Joiner
    • 3/8 or 10mm
    • 1/2" or 13mm
    • 5/8" or 16mm
    • 3/4" or 19mm
    • 1" or 25mm
    • 1-1/8" or 29mm
    • 1-1/4" or 32mm
    • 1-3/8" or 35mm
    • 1-1/2" or 38mm
    • 1-5/8" or 41mm
    • 1-3/4" or 44mm
    • 1-7/8" or 48mm
    • 2" or 51mm
    • 2-1/4" or 57mm
    • 2-1/2" or 64mm
  • 6) HOSE REDUCERS
    • 5/16" to 1/4" Fuel Hose Line Reducer
    • 3/8" to 1/4" Fuel Line Reducer
    • 3/8" to 5/16" Fuel Hose Reducer
    • 1/2" to 3/8" Reducer
    • 1/2" To 5/8" Reducer
    • 1/2" to 3/4" Reducer
    • 3/8" to 5/8" Reducer
    • 5/8" to 3/4" Reducer
    • 3/4" to 1" Reducer
    • Starting @ 1" OD Small End
      • 1-1/4" To 1" Fuel ID Reducer.
      • 1" to 1-1/8" or 25-29mm Reducer
      • 1" to 1-1/4" Reducer
      • 1" to 1-3/8" or 25-35mm Reducer
      • 1" to 1-1/2" or 25-38mm
    • Starting @ 1-1/8" OD Small End.
      • 1-1/4" To 1-1/8" Rubber Hose End ID Reducer.
    • Starting @ 1-1/4" OD Small End
      • 1-1/2" to 1-1/4" Hose ID Reducer.
      • 1-1/4" to 1-3/8" or 32-35mm Reducer
      • 1-1/4" to 1-1/2" or 32-38mm Reducer
      • 1-1/4" to 1-5/8" or 32-41mm Reducer
      • 1-1/4" to 1-3/4" or 32-44mm Reducer
    • Starting @ 1-3/8" OD Small End.
      • 1-3/8" TO 1-1/2" or 35-38mm Reducer
      • 1-3/8" TO 1-5/8" or 35-41mm Reducer
      • 1-3/8" TO 1-3/4" or 35-44mm Reducer
      • 1-3/8" TO 1-7/8" or 35-48mm Reducer
    • Starting @ 1-1/2" OD Small End
      • 1-3/4" to 1-1/2" Inner Diameter Reducer.
      • 1-1/2" to 1-5/8" or 38-41mm Reducer
      • 1-1/2" to 1-3/4" or 38-44mm Reducer
      • 1-1/2" to 1-7/8" or 38-48mm Reducer
      • 1-1/2" to 2" or 38-51mm Reducer
    • Starting @ 1-5/8" OD Small End
      • Starting @ 1-5/8" OD Small End
    • Starting @ 1-3/4" OD Small End
      • 2" to 1-3/4" Hose ID Reducer.
      • 1-3/4" to 1-7/8" or 44mm-48mm Reducer
      • 1-3/4" to 2" or 44-51mm Reducer
      • 1-3/4" to 2-1/4" or 44-57mm Reducer
      • 1-3/4" to 2-1/2" or 44-64mm Reducer
    • Starting @ 1-7/8" OD Small End
      • 2" To 1-7/8" ID Reducer
      • 1-7/8" to 2-1/4" or 48-57mm Reducer
    • Starting @ 2" OD Small End
      • 2-1/4" to 2" Hose ID Reducer.
      • 2" to 2-1/4" or 51-57mm Reducer
      • 2" to 2-3/8" or 51-60mm Reducer
      • 2" to 2-1/2" or 51-64mm Reducer
    • Starting @ 2-1/4" OD Small End
  • 7) Billet Fuel Filler Necks
    • 1" or 25mm Diameter
    • 1-5/8" or 41mm Diameter
    • 1-1/2" or 38mm Diameter
    • 2" or 51mm Diameter
    • 2-1/2" or 64mm Diameter
    • 3" Inch or 76mm Billet Filler Neck
  • 9) Radiator / Coolant Filler Neck
    • Coolant Expansion Tank
    • In Line Radiator Hose Fill Necks & Adapters
      • 1-1/4" 32mm O.D. inline Radiator Hose Filler Neck
      • 3/4" or 19mm O.D. inline Radiator Hose Filler Neck
      • 1-1/2" 38mm O.D. Inline Radiator Hose Filler Neck
      • 1-3/4" / 44mm O.D. Inline Radiator Hose Adapters
    • Cold Rolled Steel Radiator Type Filler Neck
    • Aluminum Radiator Type Filler Neck
    • Brass Radiator Type Filler Neck
    • Stainless Steel Radiator Type Filler Neck
    • Radiator Cap
      • 4 Psi Radiator Cap
      • 7 lbs Radiator Cap
      • 10 lbs Radiator Cap
      • 13 lbs Radiator Cap
      • 15 lbs Radiator Cap
      • 16 lbs Radiator Cap
      • 18 lbs Radiator Cap
      • 20 lbs Radiator Cap
      • Non Pressurized
  • 10) Weld In Filler Necks
    • 1.50" Or 38mm Filler Necks
    • 1-5/8" or 41mm O.D. Filler Necks & Caps
    • 1.75 or 44mm O.D. Filler Necks
    • 2" or 51mm O.D. Filler Necks
      • Cap
      • Filler Neck
    • 2-1/4" or 57mm Filler Necks
      • Filler Neck
    • 2.28" or 58mm Filler Necks & Caps
      • Filler Cap
      • Filler Neck
    • 2.38 O.D. (Or 2NPT)
    • 2.50 or 64mm Filler Necks & Caps
      • Filler Cap
      • Filler Neck
      • Strainer/Screen
    • 2.59" or 66mm Filler Necks & Caps
      • Cap
      • Filler Neck
    • 3" or 76mm Filler Necks
      • 3" Inch Filler Neck
      • Cap
    • 4" Or 101.8mm Filler Neck
    • 4.25" or 108mm Diameter
      • Filler Neck
      • Filler Cap
      • Strainer/ Screen
    • 4.31" or 84mm Diameter
      • Cap
      • Filler Neck
    • 4NPT - 4.35 O.D. Threaded
  • 11) Flip Top Gas Caps
    • Aston Gas Caps
      • 2.5"
      • 2.75"
      • 3.5"
      • 3.5'
    • Cobra / Lemans Flip Top Gas Caps
    • Monza Gas Caps
      • 2"
      • 2.5"
      • 2.75"
  • 12) AERO Flush Mount Gas Caps
    • 3-1/8" Outer Diameter - 200 Series Aero Caps
    • 3-3/4" Outer Diameter - 300 Series Aero Caps
    • 4-3/4" Outer Diameter - 400 Series Aero Caps
    • 5" Outer Diameter - 600 Series Aero Caps
    • 5-1/2" Outer Diameter - 500 Series Fuel Caps
  • 14) DEF Hose & Fittings
    • DEF Filler Necks
    • 1" DEF Hose
    • 1/2" Inch DEF Hose
    • 3/4" DEF Hose
    • 1-1/4" DEF Hose
    • 1-1/2 DEF Hose.
    • 2" DEF Hose.
    • Reducers - Urea DEF Diesel Exhaust Fluid Hose
    • Hose Connectors - DEF Diesel Emissions Fluid
      • UREA BSPP BRITISH STANDARD PIPE FITTINGS
      • NPT UREA DEF FITTINGS
    • Housings - Filler Neck Protector / Bezels
    • UREA DEF FITTINGS
  • 16) Threaded Necks Bungs And Caps.
    • 4"NPT Threaded Filler Necks & Caps
  • Misc
    • 8) Twist On - Bayonet Filler Necks & Caps
      • Hydraulic Necks Caps And Strainer Screens
      • Turtle Caps
      • 1.75 Diameter
      • 2.28" Diameter
        • Filler Neck
        • Filler Cap
        • Strainer / Screen
      • 2.50" Diameter
        • Filler Cap
        • Filler Neck
        • Strainer / Screen
      • 2.59" Diameter
        • Filler Cap
        • Filler Neck
      • 3.00" Diameter
        • Filler Cap
        • Filler Neck
      • 4.31" Inch O.D Bayonet Weld In Filler Neck
      • 4.25" Diameter
        • Filler Cap
        • Filler Neck
        • Strainer Screen
    • 13) Fuel Cell Parts Filler Cap Parts
    • 15) Filler Neck Grommet - Seal
      • Universal Filler Neck Mounting Grommets
      • AMC Fuel Filler Neck Grommets
      • Chevrolet / GMC
      • Dodge, Chrysler, Plymouth
      • Ford, Lincoln, Mercury
      • John Deere Tractor Filler Neck Grommets & Seals
    • 17) Marine Deck Filler
      • 1-1/2" OD Angled Marine Deck Fill
      • 2" Inch Angled Marine Deck Fill
      • 1-1/2" Inch OD Marine Deck Filler
      • 2"inch OD Marine Deck Filler
    • 18) Motorcycle Gas Caps & Filler Necks
      • Cafe Racer / Classic Street Bike Gas Caps
      • Custom Superbike Flush Mount Aero Caps
      • Weld In Custom Cycle Gas Caps
    • 19) Universal Fuel Filler Neck
      • Gas Engine
        • 1" OD Main
        • 1-1/8" OD Main
        • 1-1/4" OD Main
        • 1-3/8" OD Main
        • 1-1/2" OD Main
        • 1-5/8" OD Main
        • 1-3/4" OD Main
        • 2" OD Main
        • 2-1/4" OD Main
        • 2-1/2" OD Main
      • Diesel Engine
        • 1" OD Main
        • 1-1/8" OD Main
        • 1-1/4" OD Main
        • 1-1/2" OD Main
        • 1-3/4" OD Main
        • 2" OD Main
        • 2-1/4" OD Main
        • 2-1/2" OD Main
    • 20) Auxiliary Diesel Transfer Tank Adapter Kits
      • 1988-2010 GM Auxiliary Transfer Tank Install Kit
      • 2011-2018 Chevy Aux Transfer Tank Adapter Kit
      • 1998-2012 Dodge Ram 2500 3500 Auxiliary Tank Kit
      • 2013-2018 Dodge Ram Diesel Transfer Tank Install
      • 1999-17 Ford F250 F350 Auxiliary Tank Install Kit
    • 21) Bolt On Fuel Filler Neck And Cap
    • Marine Fuel / Coolant / Wet Exhaust Hose
      • 1" or 25mm Diameter
      • 1-1/8" or 29mm Diameter
      • 1-1/4" or 32mm Diameter
      • 1-3/8" or 35mm Diameter
      • 1-1/2" or 38mm Diameter
      • 1-5/8" or 41mm Diameter
      • 1-3/4" or 44mm Diameter
      • 1-5/16" or 33mm Diameter
      • 1-7/8" or 48mm Diameter
      • 2" or 51mm Diameter
      • 2-1/4" or 57mm Diameter
      • 2-1/8" or 54mm Diameter
      • 2-1/2" or 64mm Diameter
      • 2-3/4" or 70mm Diameter
      • 2-3/8" or 60mm Diameter
      • 2-5/8" or 67mm Diameter
      • 2-7/8" or 73mm Diameter
      • 3" or 76mm Diameter
    • Fuel Line Fittings - Connectors - Adapters
      • Fuel Line Check Valve
      • Fuel Line Bulkhead Fittings
      • Threaded Fuel Line Connectors - SAE
      • Threaded Fuel Line Connector - METRIC
      • Flexible Rubber and Nylon Fuel Line
      • Bundy Quick Connect Fuel Line Fittings
      • Male Fuel Hose Quick Connectors - FuelFlex
      • Compression Fittings & Adapters Fuel Line
      • Male To Female Fuel Line Adapters
      • Fuel Line Reducers
      • Fuel Pump - Pressure Repair Kits
    • Stant / Motorad / Gates Fuel Gas Caps
      • Custom And Decorative Gas & Diesel Caps
      • Gas Cap 31843 And Locking Cap 31844
      • Gates 31830D Three Prong Diesel Cap
      • Gates 31841 and Locking 31842 Gas Cap
      • Harley Davidson Threaded Fuel Cap
      • Threaded Diesel Cap
      • Vented Fuel Caps
      • Threaded Gas Cap 31833 And 31780
      • GM Quick Turn Cap Triangle year 1998-2001
    • A) Fuel Tank Parts - Gas and Diesel
      • NPT Pipe Fittings / Connectors / Adapters
        • 1/8" NPT Pipe Fittings - Adapters - Connectors
        • 1/4" NPT Pipe Fittings - Adapters - Connectors
        • 3/8 NPT Pipe Fittings - Adapters - Connectors
        • 2" NPT Pipe Fittings - Adapters - Connectors
      • Universal Fuel Level Sensor / Sending Unit
        • Floatless Fuel Sending Units - All Ohms
        • 240-33 Ohm Sending Unit - Universal
        • 10-180 Ohm Sending Unit - VDO Universal
        • 0-30 Ohm Sending Unit - Early GM Before 1964
        • 0-90 Ohm Sending Unit - Late GM 1965 & Up
        • 73-10 Ohm Fuel Sending Unit Ford and Mopar
      • Bolt On Fuel Tank Inlet Hose Fittings
      • Barbed Hose Fittings
      • Weld In Bung
      • Gas Tank Breather / Fuel Tank Vent (External)
      • Fuel Tank Rollover Safety Vent Valve
      • Fuel Tank Pickup Tubes & Parts
      • Fuel Pickup Filters & Screens
      • Anti Spitback Back / Wellback Check Valve's
      • Fuel Pump
    • B) Metal Tubing
    • C) Semi & Tractor Trailer Diesel Fuel Caps
      • Borg Warner Diesel Fuel Caps For Steel Tanks 2NPSH
      • Ford 2NPSH Heavy Duty Diesel Fuel Cap 2NPT
      • Freightliner - Quarter Turn Diesel Caps
      • Freightliner - Diesel Tank Caps = 2.5”-8 UN
      • Freightliner 3.0-8 NPSL CAPS
      • Volvo Diesel Fuel Cap (low Sulfur) 3.0‐8 UNNS
      • Kenworth - International - Fuel Caps = 3.5-5.5 NS
      • Peterbilt - Fill Necks & Fuel Caps = 4NPT
      • Volvo, Mack, International Diesel Caps 3.0‐8 NPSL
  • View us on Ebay!
Resources
www.junkmycar.com

Threaded Diesel Cap

locking diesel threaded 31778d @ 6.67ea

standard diesel non lock 31835d @ 3.24ea

alternate non lock 31615D

Categories

  • FACTORY REPLACEMENT FUEL FILLER NECKS
    • Acura
      • 1.6 EL
      • CSX
      • Legend
      • MDX
    • Kaiser
      • M715 Military Jeep
    • Daewoo
      • Lanos Fuel Filler Neck
    • BMW
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      • Century
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    • Chevrolet
      • C3500
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        • Fuel Filler Neck - Gas Tank Pipe - Tube - Hose
      • Malibu
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        • Fuel Filler Neck - Gas Tank Pipe Tube Hose
      • Pickup
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        • 1999 2000 Civic Fuel Filler Neck Gas Tank Pipe
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        • Galant Fuel Filler Neck Gas Tank PIpe
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      • sunbird
      • Vibe
    • Porsche
    • SAAB
      • 9-7X
    • SCION
      • XB Fuel Filler Neck Parts
    • Subaru
      • Forester
      • Impreza
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      • Outlook
      • L Series
      • L100
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      • Sequoia
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  • 1) Utility Body / Flatbed, Bed Takeoff Fill Necks
    • Diesel Fuel Neck
      • 1-1/2" OD Main
      • 1-3/4" OD Main
      • 2" OD Main
      • 2-1/4" OD Main
      • 2-1/2" OD Main
    • Gasoline Neck
      • 1" OD Main
      • 1-1/8" OD Main
      • 1-1/4" OD Main
      • 1-1/2" OD Main
      • 1-3/4" OD Main
      • 2" OD Main
      • 2-1/4" OD Main
      • 2-1/2" OD Main
    • Diesel Exhaust Fluid / Urea DEF
  • 2) Fuel Filler Hose (Straight)
    • 3/16" or 5mm Diameter
    • 1/4" or 6mm Diameter
    • 5/16" or 8mm Diameter
    • 3/8" or 10mm Diameter
    • 7/16" or 11mm Diameter
    • 1/2" or 13mm Diameter
    • 5/8" or 16mm Diameter
    • 3/4" or 19mm Diameter
    • 1" or 25mm Diameter
    • 1-1/8" or 29mm Diameter
    • 1-1/4" or 32mm Diameter
    • 1-3/8 or 35mm Diameter
    • 1-1/2" or 38mm Diameter
    • 1-5/8" or 41mm Diameter
    • 1-3/4 or 44mm Diameter
    • 1-7/8" or 48mm Diameter
    • 2" or 51mm Diameter
    • 2-1/4 or 57mm Diameter
    • 2-1/2" or 63.5mm Diameter
    • 3" Fuel Fill Hose
  • 3) Fuel Filler Hose (Elbows)
    • 30 Degree Fuel / Diesel Elbows
      • 1-1/2" or 38mm I.D.
      • 2" or 51mm I.D.
    • 45 Degree Fuel / Diesel Elbows
      • 1/4" Fuel Line 45° Elbows .25" I.D.
      • 5/16" Fuel Line Elbows - 8mm I.D.
      • 3/8" Fuel Line Elbows - 10mm I.D.
      • 1-1/4" or 32mm Diameter
      • 1-3/8" Or 35mm Inner Diameter
      • 1-1/2" or 38mm Diameter
      • 1-5/8" Or 41mm Inner Diameter.
      • 1-3/4" or 44mm Diameter
      • 2" or 51mm Diameter
      • 2-1/4" or 57mm Diameter
      • 2-1/2" or 64mm Diameter
    • 60° Degree Fuel/ Diesel Elbows
      • 2" or 51mm I.D.
      • 2-1/4" or 57mm I.D.
    • 90 Degree Fuel / Diesel Elbows
      • 1/4" Fuel Line 90° Elbows - .25 I.D.
      • 5/16" Fuel Line Elbows - 8mm
      • 3/8" Fuel Line Elbows - 10mm
      • 1/2" or 13mm Diameter
      • 5/8" Or 16mm Diameter
      • 3/4" or 19mm Inner Diameter
      • 1" or 25mm Diameter
      • 1-1/8" or 29mm Inner Diameter
      • 1-1/4" or 32mm Diameter
      • 1-3/8" or 35mm Inner Diameter
      • 1-1/2" or 38mm Diameter
      • 1-5/8" Or 41mm Inner Diameter.
      • 1-3/4" or 44mm Diameter
      • 2" or 51mm Diameter
      • 2-1/4" or 57mm Diameter
      • 2-1/2" or 64mm Diameter
      • 3" or 76mm Diameter
    • 135° Degree Fuel / Diesel Elbows
    • 180° Degree Fuel Hose - Lines - Pipes
  • 4) Filler Neck Buckets / Housings / Doors
    • Fuel Doors (Universal)
    • 21 & 22 Degree Angle
    • 30 Degree Angle
    • 42 Degree Angle
    • 53° Degree Angle
    • 55° Degree Angle
    • 57° Degree Angle
    • RV Filler Neck Surrounds
      • Champion RV Filler Neck Surrounds
      • Fireball RV Filler Neck Surrounds
      • Fleetwood Filler Neck Surrounds
      • Georgie Boy Filler Neck Surrounds
      • Mobile RV Filler Neck Surrounds
      • Pace Arrow RV Filler Neck Surrounds
      • Southwind RV Filler Neck Surrounds
      • Sportcoach RV Filler Neck Surrounds
      • Tioga RV Filler Neck Surrounds
      • Transvan Rv Filler Neck Surrounds
      • Winnebago Rv Filler Neck Surrounds
  • 5) Fuel Filler Hose Couplers / Joiners
    • 1/4" OR 6mm
    • 5/16" or 8mm Joiner
    • 3/8 or 10mm
    • 1/2" or 13mm
    • 5/8" or 16mm
    • 3/4" or 19mm
    • 1" or 25mm
    • 1-1/8" or 29mm
    • 1-1/4" or 32mm
    • 1-3/8" or 35mm
    • 1-1/2" or 38mm
    • 1-5/8" or 41mm
    • 1-3/4" or 44mm
    • 1-7/8" or 48mm
    • 2" or 51mm
    • 2-1/4" or 57mm
    • 2-1/2" or 64mm
  • 6) HOSE REDUCERS
    • 5/16" to 1/4" Fuel Hose Line Reducer
    • 3/8" to 1/4" Fuel Line Reducer
    • 3/8" to 5/16" Fuel Hose Reducer
    • 1/2" to 3/8" Reducer
    • 1/2" To 5/8" Reducer
    • 1/2" to 3/4" Reducer
    • 3/8" to 5/8" Reducer
    • 5/8" to 3/4" Reducer
    • 3/4" to 1" Reducer
    • Starting @ 1" OD Small End
      • 1-1/4" To 1" Fuel ID Reducer.
      • 1" to 1-1/8" or 25-29mm Reducer
      • 1" to 1-1/4" Reducer
      • 1" to 1-3/8" or 25-35mm Reducer
      • 1" to 1-1/2" or 25-38mm
    • Starting @ 1-1/8" OD Small End.
      • 1-1/4" To 1-1/8" Rubber Hose End ID Reducer.
    • Starting @ 1-1/4" OD Small End
      • 1-1/2" to 1-1/4" Hose ID Reducer.
      • 1-1/4" to 1-3/8" or 32-35mm Reducer
      • 1-1/4" to 1-1/2" or 32-38mm Reducer
      • 1-1/4" to 1-5/8" or 32-41mm Reducer
      • 1-1/4" to 1-3/4" or 32-44mm Reducer
    • Starting @ 1-3/8" OD Small End.
      • 1-3/8" TO 1-1/2" or 35-38mm Reducer
      • 1-3/8" TO 1-5/8" or 35-41mm Reducer
      • 1-3/8" TO 1-3/4" or 35-44mm Reducer
      • 1-3/8" TO 1-7/8" or 35-48mm Reducer
    • Starting @ 1-1/2" OD Small End
      • 1-3/4" to 1-1/2" Inner Diameter Reducer.
      • 1-1/2" to 1-5/8" or 38-41mm Reducer
      • 1-1/2" to 1-3/4" or 38-44mm Reducer
      • 1-1/2" to 1-7/8" or 38-48mm Reducer
      • 1-1/2" to 2" or 38-51mm Reducer
    • Starting @ 1-5/8" OD Small End
      • Starting @ 1-5/8" OD Small End
    • Starting @ 1-3/4" OD Small End
      • 2" to 1-3/4" Hose ID Reducer.
      • 1-3/4" to 1-7/8" or 44mm-48mm Reducer
      • 1-3/4" to 2" or 44-51mm Reducer
      • 1-3/4" to 2-1/4" or 44-57mm Reducer
      • 1-3/4" to 2-1/2" or 44-64mm Reducer
    • Starting @ 1-7/8" OD Small End
      • 2" To 1-7/8" ID Reducer
      • 1-7/8" to 2-1/4" or 48-57mm Reducer
    • Starting @ 2" OD Small End
      • 2-1/4" to 2" Hose ID Reducer.
      • 2" to 2-1/4" or 51-57mm Reducer
      • 2" to 2-3/8" or 51-60mm Reducer
      • 2" to 2-1/2" or 51-64mm Reducer
    • Starting @ 2-1/4" OD Small End
  • 7) Billet Fuel Filler Necks
    • 1" or 25mm Diameter
    • 1-5/8" or 41mm Diameter
    • 1-1/2" or 38mm Diameter
    • 2" or 51mm Diameter
    • 2-1/2" or 64mm Diameter
    • 3" Inch or 76mm Billet Filler Neck
  • 9) Radiator / Coolant Filler Neck
    • Coolant Expansion Tank
    • In Line Radiator Hose Fill Necks & Adapters
      • 1-1/4" 32mm O.D. inline Radiator Hose Filler Neck
      • 3/4" or 19mm O.D. inline Radiator Hose Filler Neck
      • 1-1/2" 38mm O.D. Inline Radiator Hose Filler Neck
      • 1-3/4" / 44mm O.D. Inline Radiator Hose Adapters
    • Cold Rolled Steel Radiator Type Filler Neck
    • Aluminum Radiator Type Filler Neck
    • Brass Radiator Type Filler Neck
    • Stainless Steel Radiator Type Filler Neck
    • Radiator Cap
      • 4 Psi Radiator Cap
      • 7 lbs Radiator Cap
      • 10 lbs Radiator Cap
      • 13 lbs Radiator Cap
      • 15 lbs Radiator Cap
      • 16 lbs Radiator Cap
      • 18 lbs Radiator Cap
      • 20 lbs Radiator Cap
      • Non Pressurized
  • 10) Weld In Filler Necks
    • 1.50" Or 38mm Filler Necks
    • 1-5/8" or 41mm O.D. Filler Necks & Caps
    • 1.75 or 44mm O.D. Filler Necks
    • 2" or 51mm O.D. Filler Necks
      • Cap
      • Filler Neck
    • 2-1/4" or 57mm Filler Necks
      • Filler Neck
    • 2.28" or 58mm Filler Necks & Caps
      • Filler Cap
      • Filler Neck
    • 2.38 O.D. (Or 2NPT)
    • 2.50 or 64mm Filler Necks & Caps
      • Filler Cap
      • Filler Neck
      • Strainer/Screen
    • 2.59" or 66mm Filler Necks & Caps
      • Cap
      • Filler Neck
    • 3" or 76mm Filler Necks
      • 3" Inch Filler Neck
      • Cap
    • 4" Or 101.8mm Filler Neck
    • 4.25" or 108mm Diameter
      • Filler Neck
      • Filler Cap
      • Strainer/ Screen
    • 4.31" or 84mm Diameter
      • Cap
      • Filler Neck
    • 4NPT - 4.35 O.D. Threaded
  • 11) Flip Top Gas Caps
    • Aston Gas Caps
      • 2.5"
      • 2.75"
      • 3.5"
      • 3.5'
    • Cobra / Lemans Flip Top Gas Caps
    • Monza Gas Caps
      • 2"
      • 2.5"
      • 2.75"
  • 12) AERO Flush Mount Gas Caps
    • 3-1/8" Outer Diameter - 200 Series Aero Caps
    • 3-3/4" Outer Diameter - 300 Series Aero Caps
    • 4-3/4" Outer Diameter - 400 Series Aero Caps
    • 5" Outer Diameter - 600 Series Aero Caps
    • 5-1/2" Outer Diameter - 500 Series Fuel Caps
  • 14) DEF Hose & Fittings
    • DEF Filler Necks
    • 1" DEF Hose
    • 1/2" Inch DEF Hose
    • 3/4" DEF Hose
    • 1-1/4" DEF Hose
    • 1-1/2 DEF Hose.
    • 2" DEF Hose.
    • Reducers - Urea DEF Diesel Exhaust Fluid Hose
    • Hose Connectors - DEF Diesel Emissions Fluid
      • UREA BSPP BRITISH STANDARD PIPE FITTINGS
      • NPT UREA DEF FITTINGS
    • Housings - Filler Neck Protector / Bezels
    • UREA DEF FITTINGS
  • 16) Threaded Necks Bungs And Caps.
    • 4"NPT Threaded Filler Necks & Caps
  • Misc
    • 8) Twist On - Bayonet Filler Necks & Caps
      • Hydraulic Necks Caps And Strainer Screens
      • Turtle Caps
      • 1.75 Diameter
      • 2.28" Diameter
        • Filler Neck
        • Filler Cap
        • Strainer / Screen
      • 2.50" Diameter
        • Filler Cap
        • Filler Neck
        • Strainer / Screen
      • 2.59" Diameter
        • Filler Cap
        • Filler Neck
      • 3.00" Diameter
        • Filler Cap
        • Filler Neck
      • 4.31" Inch O.D Bayonet Weld In Filler Neck
      • 4.25" Diameter
        • Filler Cap
        • Filler Neck
        • Strainer Screen
    • 13) Fuel Cell Parts Filler Cap Parts
    • 15) Filler Neck Grommet - Seal
      • Universal Filler Neck Mounting Grommets
      • AMC Fuel Filler Neck Grommets
      • Chevrolet / GMC
      • Dodge, Chrysler, Plymouth
      • Ford, Lincoln, Mercury
      • John Deere Tractor Filler Neck Grommets & Seals
    • 17) Marine Deck Filler
      • 1-1/2" OD Angled Marine Deck Fill
      • 2" Inch Angled Marine Deck Fill
      • 1-1/2" Inch OD Marine Deck Filler
      • 2"inch OD Marine Deck Filler
    • 18) Motorcycle Gas Caps & Filler Necks
      • Cafe Racer / Classic Street Bike Gas Caps
      • Custom Superbike Flush Mount Aero Caps
      • Weld In Custom Cycle Gas Caps
    • 19) Universal Fuel Filler Neck
      • Gas Engine
        • 1" OD Main
        • 1-1/8" OD Main
        • 1-1/4" OD Main
        • 1-3/8" OD Main
        • 1-1/2" OD Main
        • 1-5/8" OD Main
        • 1-3/4" OD Main
        • 2" OD Main
        • 2-1/4" OD Main
        • 2-1/2" OD Main
      • Diesel Engine
        • 1" OD Main
        • 1-1/8" OD Main
        • 1-1/4" OD Main
        • 1-1/2" OD Main
        • 1-3/4" OD Main
        • 2" OD Main
        • 2-1/4" OD Main
        • 2-1/2" OD Main
    • 20) Auxiliary Diesel Transfer Tank Adapter Kits
      • 1988-2010 GM Auxiliary Transfer Tank Install Kit
      • 2011-2018 Chevy Aux Transfer Tank Adapter Kit
      • 1998-2012 Dodge Ram 2500 3500 Auxiliary Tank Kit
      • 2013-2018 Dodge Ram Diesel Transfer Tank Install
      • 1999-17 Ford F250 F350 Auxiliary Tank Install Kit
    • 21) Bolt On Fuel Filler Neck And Cap
    • Marine Fuel / Coolant / Wet Exhaust Hose
      • 1" or 25mm Diameter
      • 1-1/8" or 29mm Diameter
      • 1-1/4" or 32mm Diameter
      • 1-3/8" or 35mm Diameter
      • 1-1/2" or 38mm Diameter
      • 1-5/8" or 41mm Diameter
      • 1-3/4" or 44mm Diameter
      • 1-5/16" or 33mm Diameter
      • 1-7/8" or 48mm Diameter
      • 2" or 51mm Diameter
      • 2-1/4" or 57mm Diameter
      • 2-1/8" or 54mm Diameter
      • 2-1/2" or 64mm Diameter
      • 2-3/4" or 70mm Diameter
      • 2-3/8" or 60mm Diameter
      • 2-5/8" or 67mm Diameter
      • 2-7/8" or 73mm Diameter
      • 3" or 76mm Diameter
    • Fuel Line Fittings - Connectors - Adapters
      • Fuel Line Check Valve
      • Fuel Line Bulkhead Fittings
      • Threaded Fuel Line Connectors - SAE
      • Threaded Fuel Line Connector - METRIC
      • Flexible Rubber and Nylon Fuel Line
      • Bundy Quick Connect Fuel Line Fittings
      • Male Fuel Hose Quick Connectors - FuelFlex
      • Compression Fittings & Adapters Fuel Line
      • Male To Female Fuel Line Adapters
      • Fuel Line Reducers
      • Fuel Pump - Pressure Repair Kits
    • Stant / Motorad / Gates Fuel Gas Caps
      • Custom And Decorative Gas & Diesel Caps
      • Gas Cap 31843 And Locking Cap 31844
      • Gates 31830D Three Prong Diesel Cap
      • Gates 31841 and Locking 31842 Gas Cap
      • Harley Davidson Threaded Fuel Cap
      • Threaded Diesel Cap
      • Vented Fuel Caps
      • Threaded Gas Cap 31833 And 31780
      • GM Quick Turn Cap Triangle year 1998-2001
    • A) Fuel Tank Parts - Gas and Diesel
      • NPT Pipe Fittings / Connectors / Adapters
        • 1/8" NPT Pipe Fittings - Adapters - Connectors
        • 1/4" NPT Pipe Fittings - Adapters - Connectors
        • 3/8 NPT Pipe Fittings - Adapters - Connectors
        • 2" NPT Pipe Fittings - Adapters - Connectors
      • Universal Fuel Level Sensor / Sending Unit
        • Floatless Fuel Sending Units - All Ohms
        • 240-33 Ohm Sending Unit - Universal
        • 10-180 Ohm Sending Unit - VDO Universal
        • 0-30 Ohm Sending Unit - Early GM Before 1964
        • 0-90 Ohm Sending Unit - Late GM 1965 & Up
        • 73-10 Ohm Fuel Sending Unit Ford and Mopar
      • Bolt On Fuel Tank Inlet Hose Fittings
      • Barbed Hose Fittings
      • Weld In Bung
      • Gas Tank Breather / Fuel Tank Vent (External)
      • Fuel Tank Rollover Safety Vent Valve
      • Fuel Tank Pickup Tubes & Parts
      • Fuel Pickup Filters & Screens
      • Anti Spitback Back / Wellback Check Valve's
      • Fuel Pump
    • B) Metal Tubing
    • C) Semi & Tractor Trailer Diesel Fuel Caps
      • Borg Warner Diesel Fuel Caps For Steel Tanks 2NPSH
      • Ford 2NPSH Heavy Duty Diesel Fuel Cap 2NPT
      • Freightliner - Quarter Turn Diesel Caps
      • Freightliner - Diesel Tank Caps = 2.5”-8 UN
      • Freightliner 3.0-8 NPSL CAPS
      • Volvo Diesel Fuel Cap (low Sulfur) 3.0‐8 UNNS
      • Kenworth - International - Fuel Caps = 3.5-5.5 NS
      • Peterbilt - Fill Necks & Fuel Caps = 4NPT
      • Volvo, Mack, International Diesel Caps 3.0‐8 NPSL
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  • Threaded Diesel Cap
  • 31803 gates stant 10603 diesel fuel cap 31823

    2NPSH Vented Heavy Duty Diesel Truck Fuel Tank Cap (Locking & Non)2NPT

    Part # 2NPTCAP

    (Please See Details Before Ordering)

    $27.29
    Choose Options Details
  • Gates 31615D Fuel Cap

    Gates 31615D Fuel Cap

    Part # 31615D

    (Please See Details Before Ordering)

    $15.65
    Add to Cart Details
  • 31803 gates stant 10603 diesel fuel cap 31823

    (2.5”-8 UN) Female Threaded Diesel Fuel Cap (31867 & Locking #31870 )

    Part # NPT25

    (Please See Details Before Ordering)

    $16.95
    Choose Options Details
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