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AN & NPT Fittings & Adapters, Fuel Line Fittings, Hose Couplers & more

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AN & NPT Fittings & Adapters, Fuel Line Fittings, Hose Couplers & more

No matter what you’re plumbing—brakes, fuel, vacuum, oil, nitrous—you can plumb it with help from Summit Racing Equipment! You can find all of the...

No matter what you’re plumbing—brakes, fuel, vacuum, oil, nitrous—you can plumb it with help from Summit Racing Equipment! You can find all of the automotive fittings you need right here, including a wide range of AN, NPT, fuel line and hose fittings, along with adapters and reducers to go from one to another, and so much more. Our huge selection means you can assemble the complex custom plumbing system your competition vehicle needs, restore your classic car with period-accurate components, or just keep your daily driver running right. Take a look at our options for AN Hoses, to go along with your fittings.

No matter what you’re plumbing—brakes, fuel, vacuum, oil, nitrous—you can plumb it with help from Summit Racing Equipment! You can find all of the automotive fittings you need right here, including a wide range of AN, NPT, fuel line and hose fittings, along with adapters and reducers to go from one to another, and so much more. Our huge selection means you can assemble the complex custom plumbing system your competition vehicle needs, restore your classic car with period-accurate components, or just keep your daily driver running right. Take a look at our options for AN Hoses, to go along with your fittings.

Top Brands

Starting now, you can shop from all the best brands of automotive fittings on the market, including Russell, Earl’s, Aeroquip, and Fragola, plus our dependable and budget-friendly Summit Racing brand.

Individual Parts

Results 1 - 25 of 720

Fuel Line Adapter Fittings, Fuel Line Adapters, Straight, 3/8 in. Male Quick-connect, 3/8 in. Hose Barb, Steel, Natural, Pair

Part Number: URR-K155

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Fuel Line Adapter Fitting, Straight, 5/16 in. Line, Female Spring Lock to Nylon, Steel, Zinc, Each

Part Number: URR-K320

5.0 out of 5 stars ( 1 )

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Fitting, Adapter, AN to Tubing, Straight, Aluminum, Black/Silver Anodized, -8 AN, 1/2 in., Swivel, Each

Part Number: RUS-639223

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Fuel Line Adapter Fittings, Fuel Line Adapters, Straight, 1/4 in. Male Quick-connect, 5/16 in. Hose Barb, Steel, Natural, Pair

Part Number: URR-K160

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Fitting, Fuel Line Adapter, 90 degree, Black, 5/16 in. Female Quick-connect, 3/8 in. Hose Barb, Each

Part Number: RNB-800-092

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Fitting, EFI Adapter, Straight, Female -6 AN to 5/16 in. Male Quick Connect, Aluminum, Black Anodized, Each

Part Number: DWK-6-02-0130-B

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Fitting, Adapter, AN to Tubing, Straight, Aluminum, Black/Silver Anodized, -8 AN, 1/2 in., Each

Part Number: RUS-639233

5.0 out of 5 stars ( 1 )

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Nitrous Outlet 6AN x 3/8" Spring Lock Fuel Adapter - Male/Male

Part Number: NXO-60-60022

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Estimated Ship Date: Dec 8, 2025 if ordered today

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Estimated Ship Date: Dec 8, 2025 if ordered today

Fittings, Fuel Line Vapor Connector, Straight, White, 1/2 in. Female Quick-connect, 1/2 in. Hose Barb, Each

Part Number: RNB-800-111

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Fitting, Push-On EFI, Straight, Male -8 AN, Female Quick-Connect, Threaded Cap, 3/8 in., Aluminum, Black Anodized, Each

Part Number: HSE-880-08-06-2

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Fitting, Coupler, Union, AN to AN, 180 Degree, Aluminum, Blue Anodized, -6 AN, -6 AN, Swivel, Each

Part Number: EAR-918106ERL

3.5 out of 5 stars ( 4 )

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Fitting, Adapter, AN to Tubing, Straight, Aluminum, Red/Blue Anodized, -8 AN, 1/2 in., Each

Part Number: RUS-639230

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Fitting, Adapter, AN to Tubing, Straight, Aluminum, Black/Silver Anodized, -6 AN, 3/8 in., Each

Part Number: RUS-639213

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Fuel Line Adapter Fittings, Straight, 3/8 in. Female Quick-connect, 3/8 in. Male Quick-connect, Aluminum, Black Anodized, Ford, Each

Part Number: NXO-00-01812

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Fitting, EFI Adapter, Straight, Female -8 AN to 5/16 in. Male Quick Connect, Aluminum, Silver Anodized, Each

Part Number: DWK-6-02-0132

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Fitting, EFI Adapter, Straight, Female -10 AN to 5/16 in. Male Quick Connect, Aluminum, Silver Anodized, Each

Part Number: DWK-6-02-0134

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

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Estimated Ship Date: Dec 22, 2025 if ordered today

Fitting, Adapter, AN to Tubing, Straight, Aluminum, Black/Silver Anodized, -6 AN, 3/8 in., Swivel, Each

Part Number: RUS-639203

5.0 out of 5 stars ( 8 )

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3/8 GM Female To Nylon Adapter 1

Part Number: URR-K100

Not Yet Reviewed

Estimated Ship Date: Dec 10, 2025 if ordered today

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Estimated Ship Date: Dec 10, 2025 if ordered today

10AN ORB Male to 5/16 Inch Male EFI Quick Connect Adapter (Incl O-Ring), Anodized Matte Black

Part Number: DWK-6-02-0124-B

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

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Estimated Ship Date: Dec 22, 2025 if ordered today

Fuel Line Adapter, Billet Aluminum, Black Anodized, Late Model Fuel Rail, 3/8 in. Fuel Tube, 1/8 in. Ports, Each

Part Number: NOS-17002NOS

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Fittings, Fuel Pressure Damper, Banjo, Aluminum, Blue, -6 AN Male, Civics/Integra, Each

Part Number: RUS-640920

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 29, 2025 if ordered today

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Estimated Ship Date: Dec 29, 2025 if ordered today

Fitting, 180 Degree GM Fuel Filter, 3/8 in., Hose Barb, Steel, Each

Part Number: URR-38180

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 10, 2025 if ordered today

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Estimated Ship Date: Dec 10, 2025 if ordered today

1/4NPT 90 deg elbow

Part Number: SBC-9178K

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Fitting, EFI Adapter, Straight, Female -10 AN to 3/8 in. Male Quick Connect, Aluminum, Silver Anodized, Each

Part Number: DWK-6-02-0135

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

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Estimated Ship Date: Dec 22, 2025 if ordered today

Fuel Line Adapter, Billet Aluminum, Black Anodized, Late Model Fuel Rail, 5/16 in. Fuel Tube, 1/8 in. Ports, Each

Part Number: NOS-17003NOS

4.5 out of 5 stars ( 2 )

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