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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

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 )

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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 )

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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

Not Yet Reviewed

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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 )

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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 )

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 )

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Fittings, Fuel Line Adapters, Straight, Black, 5/16 in. Female Quick-connect, 6mm Hose Barb, Pair

Part Number: RNB-800-188

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

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

Not Yet Reviewed

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5/16" EFI Fuel Line Adapter

Part Number: NXO-0001811516

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 8, 2025 if ordered today

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Estimated Ship Date: Dec 8, 2025 if ordered today

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

Not Yet Reviewed

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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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Fuel Line Adapter, Nitrous, Late Model, Billet, 90 Degree Fitting, 1/8 in. NPT, Female/Male, Anodized, Each

Part Number: NEX-16185D

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

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 )

Estimated Ship Date: Today

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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 )

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

Part Number: NXO-60-60022

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

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Estimated Ship Date: Dec 8, 2025 if ordered today

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

Part Number: RUS-640913

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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

Part Number: RUS-639210

5.0 out of 5 stars ( 7 )

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

Part Number: RNB-800-111

Not Yet Reviewed

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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

Not Yet Reviewed

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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

Not Yet Reviewed

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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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