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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 1620

Adapter, Straight, 5/8 in. Hose Barb Hose End Size, Brass, -10 AN Female Threads Adapter Size, Each

Part Number: JZP-EA701101

5.0 out of 5 stars ( 4 )

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Fitting, Adapter, NPT to Hose Barb, Straight, Brass, Natural, 1/4 in. NPT, 1/4 in. Hose Barb, Pair

Part Number: MLI-S-600

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Fitting, Adapter, NPT to Hose Barb, Straight, Billet Aluminum, Black Anodized, 5/16 in., 5/16 in. Hose Barb, Each

Part Number: EAR-740156ERL

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Fitting, Adapter, NPT to Hose Barb, Straight, Brass, Natural, 1/4 in. NPT, 1/8 in. Hose Barb, Each

Part Number: MLI-600-4

1.0 out of 5 stars ( 1 )

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

Part Number: MLI-605-3

5.0 out of 5 stars ( 1 )

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Fitting, Adapter, NPT to Hose Barb, Straight, Steel, Black Oxide, 1/4 in. NPT, 3/8 in. Hose Barb, Swivel, Each

Part Number: MLI-S-658

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Fitting, Coupler, Union, NPT to NPT, Straight, Steel, Black Oxide, 1/4 in. NPT, 1/4 in. NPT, Swivel, Each

Part Number: MLI-S-659

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Fitting, Adapter, NPT to Hose Barb, Straight, Zamak, Natural, 1/4 in. NPT, 1/4 in. Hose Barb, Pair

Part Number: MLI-S-663

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Fitting, Adapter, NPS to Hose Barb, Straight, Brass, Natural, 1/4 in. NPS, 1/4 in., Swivel, Each

Part Number: MLI-607

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

Part Number: MLI-600-2

5.0 out of 5 stars ( 1 )

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Fitting, Adapter, NPT to Hose Barb, Straight, Brass, Natural, 1/4 in. NPT, 3/8 in. Hose Barb, Pair

Part Number: MLI-S-602

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Fitting, Adapter, NPT to Hose Barb, Straight, Brass, Natural, 1/8 in. NPT, 1/4 in. Hose Barb, Each

Part Number: MLI-600-3

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

Part Number: MLI-604-1

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Fitting, Adapter, NPT to Hose Barb, Straight, Brass, Natural, 1/4 in. NPT, 1/4 in. Hose Barb, Pair

Part Number: MLI-S-605

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Fitting, Coupler, Union, NPT to NPT, Straight, Brass, Natural, 1/4 in. NPT, 1/4 in. NPT, Swivel, Each

Part Number: MLI-660

4.0 out of 5 stars ( 1 )

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Fitting, Adapter, NPT to Hose Barb, Straight, Brass, Natural, 3/8 in. NPT, 3/8 in. Hose Barb, Pair

Part Number: MLI-S-603

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Fitting, Coupler, Union, Hose Barb to Hose Barb, Straight, Brass, Natural, 3/8 in. Hose Barb, 3/8 in. Hose Barb, Pair

Part Number: MLI-S-642

5.0 out of 5 stars ( 2 )

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Fitting, Adapter, NPT to Hose Barb, Straight, Brass, Natural, 1/4 in. NPT, 3/8 in. Hose Barb, Pair

Part Number: MLI-S-605-2

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Fitting, Adapter, NPT to Hose Barb, Straight, Brass, Natural, 1/4 in. NPT, 3/8 in. Hose Barb, Each

Part Number: MLI-S-621

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Air Hose Fittings, Hose Repair Kit, Brass, Natural Finish, 3/8 in. Air Hose, includes, Hose Clamps, Hose Splice, Hose Ends, Male Thread, Kit

Part Number: WMR-M479

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Fitting, AN To AN Union, 90 Degree, -6 AN Male AN Ends, Aluminum, Blue, Each

Part Number: FRA-482106

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Estimated Ship Date: Feb 5, 2026 if ordered today

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Estimated Ship Date: Feb 5, 2026 if ordered today

Fitting and Adapter, 90 degree, Aluminum, Black, -3 AN Female AN, -3 AN Male AN, Swivel On Female End Only, Each

Part Number: NXO-00-01610

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Adapter Fitting, Intercooler, Air to Water, 3/4 in. Hose End, -12 AN Male Straight Cut O-Ring, Aluminum, Black, Each

Part Number: MIO-MMFT-075SW

5.0 out of 5 stars ( 1 )

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Fitting, AN To AN Union, 90 Degree, -16 AN Male AN Ends, Aluminum, Black, Each

Part Number: FRA-482116-BL

Not Yet Reviewed

Estimated Ship Date: Feb 5, 2026 if ordered today

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Estimated Ship Date: Feb 5, 2026 if ordered today

Fitting, AN To AN Union, 90 Degree, -10 AN Male AN Ends, Aluminum, Blue, Each

Part Number: FRA-482110

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