Summit Racing SpeedCard - learn how to get 15% back up to $150

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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 721

Fitting, Fuel Line Adapter, Straight, 1/8 in. NPT Male Threads, 3/8 in. Hose Barb, Each

Part Number: RNB-787-018

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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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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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 )

Estimated Ship Date: Today

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Fuel Line Adapter, Straight, Polished, 14mm Male Spring Lock, 5/16 in. Hose Barb, Ford, Lincoln, Mercury, Each

Part Number: RNB-800-131

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Fitting, Fuel Line Adapter, Straight, M14 x 1.5 Female Threads, 5/16 in. Nipple, Each

Part Number: RNB-800-079

Not Yet Reviewed

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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, Push-On EFI, Straight, Male -6 AN, Female Quick-Connect, Threaded Cap, 3/8 in., Aluminum, Black Anodized, Each

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

Not Yet Reviewed

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

Part Number: RUS-639200

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Today

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Adapter Fitting; Specialty Adapter Fitting; Banjo w/- 6 AN Male Flare; Civics/Integra w/Fuel Pressure Damper

Part Number: RUS-640923

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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3/8 GM Line Adapter 2

Part Number: URR-K075

Not Yet Reviewed

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3/8 GM Short Line Adapter 2

Part Number: URR-K275

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

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

Part Number: RUS-639220

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Fitting, EFI Adapter, Straight, Male -6 AN to OEM Fuel Pump, Aluminum, Black Anodized, Toyota, Each

Part Number: DWK-6-02-0127-B

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

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

Part Number: DWK-6-02-0132

Not Yet Reviewed

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10AN ORB Male to 3/8 Inch Male EFI Quick Connect Adapter (Incl O-Ring), Anodized Matte Black

Part Number: DWK-6-02-0125-B

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

8AN ORB Male to 5/16 Inch Male EFI Quick Connect Adapter (Incl O-Ring), Anodized DW Titanium

Part Number: DWK-6-02-0123

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

8AN ORB Male to 5/16 Inch Male EFI Quick Connect Adapter (Incl O-Ring), Anodized Matte Black

Part Number: DWK-6-02-0123-B

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

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

Fuel Rail Fitting, Aluminum, Black Anodized, OEM Regulator to -8 AN Male O-Ring, Polaris, Each

Part Number: DWK-6-02-0140-B

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

9/16 -5/16 Female Spring Lock To Nylon 1

Part Number: URR-K310

Not Yet Reviewed

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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, 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 )

Estimated Ship Date: Today

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Fitting, Push-On EFI, Straight, Male -6 AN, Female Quick-Connect, Threaded Cap, 3/8 in., Aluminum, Clear Anodized, Each

Part Number: HSE-880-06-06-5

Not Yet Reviewed

Estimated Ship Date: Dec 9, 2025 if ordered today

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Estimated Ship Date: Dec 9, 2025 if ordered today

Fitting, 5/16 in. Banjo to 5/16 in. Barb, For Nylon Hose, Straight, Each

Part Number: URR-K335

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

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