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.

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.

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Results 1 - 25 of 56

Eddie Marine Heater Hose Fittings HDN-3458

Fitting, Adapter, NPT to Hose Barb, 90 Degree, Brass, Chrome, 3/4 in. NPT, 5/8 in. Hose Barb, Each

Part Number: EDM-HDN-3458

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Summit Racing™ Marine Adapter Fittings SUM-220720B

Fitting, Marine Outdrive Oil Port Adapter, AN to Straight Cut, Straight, Aluminum, Black Anodized, -4 AN, 3/8-16 in. UNC, Each

Part Number: SUM-220720B

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Sierra Marine Fittings and Adapters N800-0340

Fittings, Adapter, Plastic, Black, Straight, 3/4 in. Male NPT, 3/4 in Tube, Each

Part Number: RRA-N800-0340

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

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Estimated Ship Date: Dec 15, 2025 if ordered today

Sierra Marine Fittings and Adapters 18-8216

Fittings, Brass, Natural, 90 Degrees, 1 in. Male NPT, 1 in, Hose Barb, Chrysler, Each

Part Number: RRA-18-8216

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Sierra Marine Fittings and Adapters 18-500-3814

Fittings, Brass, Adapter, Straight, 1/4 in, Male NPT, 3/8 in, Hose Barb, Each

Part Number: RRA-18-500-3814

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

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Estimated Ship Date: Dec 15, 2025 if ordered today

Sierra Marine Fittings and Adapters 18-502-1234

Fittings, Brass, Adapter, Straight, 1/2 in, Female NPT, 1/2 in, Hose Barb, Each

Part Number: RRA-18-502-1234

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

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Estimated Ship Date: Dec 15, 2025 if ordered today

Sierra Marine Fittings and Adapters 18-8958

Fittings, Brass Natural, Tee, Rubber O-Ring, 3/16 in. Hose Barb, 1/4 in. Hose Barb, Chrysler, Each

Part Number: RRA-18-8958

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

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Estimated Ship Date: Dec 15, 2025 if ordered today

Sierra Marine Fittings and Adapters 18-9795

Fittings, Billet Aluminum, Silver, Straight, Rubber O-Ring, 10 mm x1.25 Male threads, 10 mm x1.25 Female threads, Each

Part Number: RRA-18-9795

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

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Estimated Ship Date: Dec 15, 2025 if ordered today

Sierra Marine Fittings and Adapters 7-041066

Fittings, Fuel Adapter, Plastic, White, Straight, 1/8 in. Hose Barb, 1/8 in Hose Barb, Each

Part Number: RRA-7-041066

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

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Estimated Ship Date: Dec 15, 2025 if ordered today

Eddie Marine Heater Hose Fittings HD-1212

Fitting, Adapter, NPT to Hose Barb, Straight, Brass, Chrome, 1/2 in. NPT, 1/2 in. Hose Barb, Each

Part Number: EDM-HD-1212

Not Yet Reviewed

Estimated Ship Date: Dec 4, 2025 if ordered today

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Estimated Ship Date: Dec 4, 2025 if ordered today

Eddie Marine Heater Hose Fittings HDN-1212

Fitting, Adapter, NPT to Hose Barb, 90 Degree, Brass, Chrome, 1/2 in. NPT, 1/2 in. Hose Barb, Each

Part Number: EDM-HDN-1212

Not Yet Reviewed

Estimated Ship Date: Dec 4, 2025 if ordered today

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Estimated Ship Date: Dec 4, 2025 if ordered today

Eddie Marine Fuel Hose Reducers 265-51

Fitting, Reducer, Hose Barb to Hose Barb, Straight, Aluminum, Natural, 2 in., 1 1/2 in., Each

Part Number: EDM-265-51

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Sierra Marine Fittings and Adapters 18-80401

Fittings, Brass, Adapter, Straight, Nickel Plated, 3/8 in. Male NPT, 3/8 in Quick Connect, Each

Part Number: RRA-18-80401

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

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Estimated Ship Date: Dec 15, 2025 if ordered today

Sierra Marine Fittings and Adapters N802-1120

Fittings, Sanitary Adapter, Plastic, Black, 90 Degree, 1-1/2 Male NPT, 1-1/2 in, Tube,, Each

Part Number: RRA-N802-1120

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

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Estimated Ship Date: Dec 15, 2025 if ordered today

Sierra Marine Fittings and Adapters 18-8074

Fittings. Brass, Natural, Straight, 1/4 in. Male NPT, 3/8 in Hose Barb, Each

Part Number: RRA-18-8074

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

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Estimated Ship Date: Dec 15, 2025 if ordered today

Sierra Marine Fittings and Adapters 18-9794

Fittings, Billet Aluminum, Silver, Straight, Rubber O-Ring, 8mm x1.25 Male threads, 8mm x1.25 Female threads, Each

Part Number: RRA-18-9794

Not Yet Reviewed

Estimated Ship Date: Dec 17, 2025 if ordered today

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Estimated Ship Date: Dec 17, 2025 if ordered today

Eddie Marine Heater Hose Fittings HD-1234

Fitting, Adapter, NPT to Hose Barb, Straight, Brass, Chrome, 1/2 in. NPT, 3/4 in. Hose Barb, Each

Part Number: EDM-HD-1234

Not Yet Reviewed

Estimated Ship Date: Dec 4, 2025 if ordered today

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Estimated Ship Date: Dec 4, 2025 if ordered today

Eddie Marine Heater Hose Fittings HD-1258

Fitting, Adapter, NPT to Hose Barb, Straight, Brass, Chrome, 1/2 in. NPT, 5/8 in. Hose Barb, Each

Part Number: EDM-HD-1258

Not Yet Reviewed

Estimated Ship Date: Dec 4, 2025 if ordered today

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Estimated Ship Date: Dec 4, 2025 if ordered today

Eddie Marine Heater Hose Fittings HD-1838

Fitting, Adapter, NPT to Hose Barb, Straight, Brass, Chrome, 1/8 in. NPT, 3/8 in. Hose Barb, Each

Part Number: EDM-HD-1838

Not Yet Reviewed

Estimated Ship Date: Dec 4, 2025 if ordered today

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Estimated Ship Date: Dec 4, 2025 if ordered today

Eddie Marine Heater Hose Fittings HD-3838

Fitting, Adapter, NPT to Hose Barb, Straight, Brass, Chrome, 3/8 in. NPT, 3/8 in. Hose Barb, Each

Part Number: EDM-HD-3838

Not Yet Reviewed

Estimated Ship Date: Dec 4, 2025 if ordered today

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Estimated Ship Date: Dec 4, 2025 if ordered today

Eddie Marine Heater Hose Fittings HD-3434

Fitting, Adapter, NPT to Hose Barb, Straight, Brass, Chrome, 3/4 in. NPT, 3/4 in. Hose Barb, Each

Part Number: EDM-HD-3434

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Sierra Marine Fittings and Adapters 18-8073

Fittings. Brass, Natural, Straight, 1/8 in. Male NPT, 3/8 in Hose Barb, Each

Part Number: RRA-18-8073

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Sierra Marine Fittings and Adapters 18-8109

Fittings, Brass, Natural, Straight, 3/8 in, Male NPT, 5/16 in Hose Barb, Each

Part Number: RRA-18-8109

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Sierra Marine Fittings and Adapters 18-601-3814

Fittings, Brass, Coupler, 90 degree, 3/8 in, Male NPT, 1/4 in, Male NPT, Each

Part Number: RRA-18-601-3814

Not Yet Reviewed

Estimated Ship Date: Dec 16, 2025 if ordered today

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Estimated Ship Date: Dec 16, 2025 if ordered today

Sierra Marine Fittings and Adapters 18-8054

Fittings, Brass, Natural, Straight Adapter, 1/8 in. Male NPT, 5/16 in. Hose Barb, Each

Part Number: RRA-18-8054

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

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Estimated Ship Date: Dec 15, 2025 if ordered today

Sierra Marine Fittings and Adapters N803-1120

Fittings, Sanitary Adapter, Plastic, Black, 90 Degree, 1-1/2 Female NPT, 1-1/2 in. Tube., Each

Part Number: RRA-N803-1120

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

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Estimated Ship Date: Dec 15, 2025 if ordered today

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