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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 51

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

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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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Fittings and Adapters, LT Gen-V Oil Pressure Gauge Adapter Fitting, Straight, 1/8 in. NPT Female NPT, M12 x 1.75 Male Metric, Stainless, Natural, Each

Part Number: EAR-LT0001ERL

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Fitting, Push-On EFI, Straight, Male -6 AN, Female Quick-Connect, Threaded Cap, 5/16 in., Aluminum, Black Anodized, Each

Part Number: HSE-880-06-05-2

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Fitting, Coupler, Union, Hose Barb to Hose Barb, Straight, Brass, Natural, 1/4 in. Hose Barb, 1/4 in. Hose Barb, Pair

Part Number: MLI-S-640

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Fitting, TemperatureGauge, 1 1/2 in. Hose Barb to 1 1/2 in. Hose Barb, 3/8 in. NPT Gauge Port, M6 x 1.0 Threaded Ground Point, Aluminum, Natural, Each

Part Number: DWR-32-17627G

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Fitting, Coupler, Union, Hose Barb to Hose Barb, Straight, Brass, Natural, 1/2 in., 1/2 in. Hose Barb, Each

Part Number: MLI-642-1

5.0 out of 5 stars ( 1 )

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Fitting, Coupler, Union, Hose Barb to Hose Barb, Straight, Brass, Natural, 5/16 in. Hose Barb, 5/16 in. Hose Barb, Pair

Part Number: MLI-S-641

5.0 out of 5 stars ( 1 )

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

Part Number: HSE-880-06-06-1

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Fitting, Push-On EFI, Straight, Male -6 AN, Female Quick-Connect, Threaded Cap, 5/16 in., Aluminum, Red Anodized, Each

Part Number: HSE-880-06-05-3

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Estimated Ship Date: May 13, 2026 if ordered today

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Estimated Ship Date: May 13, 2026 if ordered today

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: May 13, 2026 if ordered today

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Estimated Ship Date: May 13, 2026 if ordered today

Fittings and Adapters, Quick-Disconnect, UNF To Push Lock, Straight, 10-32 Male UNF, Female Quick-connect, 1/8 in. Tubing, for Nylon Hose Only, Each

Part Number: NXO-00-01560

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Fitting, Push-On EFI, Straight, Male -6 AN, Female Quick-Connect, Threaded Cap, 5/16 in., Aluminum, Clear Anodized, Each

Part Number: HSE-880-06-05-5

5.0 out of 5 stars ( 1 )

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6AN 90 Degree Male Union

Part Number: NXO-60-58015-06

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Estimated Ship Date: May 5, 2026 if ordered today

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Estimated Ship Date: May 5, 2026 if ordered today

Fitting, Adapter, Hose Barb to Spring Lock, 90 Degree, Plastic, Black, 5/16 in., 5/16 in., Each

Part Number: URR-KP135

2.0 out of 5 stars ( 2 )

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, Red Anodized, Each

Part Number: HSE-880-06-06-3

Not Yet Reviewed

Estimated Ship Date: May 13, 2026 if ordered today

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Estimated Ship Date: May 13, 2026 if ordered today

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

Part Number: HSE-880-08-06-5

Not Yet Reviewed

Estimated Ship Date: May 13, 2026 if ordered today

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Estimated Ship Date: May 13, 2026 if ordered today

Intake Cleaning Adapter, Kit

Part Number: URR-S-TOOL

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Estimated Ship Date: May 8, 2026 if ordered today

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Estimated Ship Date: May 8, 2026 if ordered today

3AN 90 Degree Male Union

Part Number: NXO-60-58015-03

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Estimated Ship Date: May 5, 2026 if ordered today

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Estimated Ship Date: May 5, 2026 if ordered today

1/2" NPT Male Nipple

Part Number: NXO-60-58040-12

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Estimated Ship Date: May 5, 2026 if ordered today

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Estimated Ship Date: May 5, 2026 if ordered today

12AN 45 Degree Male Union

Part Number: NXO-60-58014-12

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Estimated Ship Date: May 5, 2026 if ordered today

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Estimated Ship Date: May 5, 2026 if ordered today

12AN Union

Part Number: NXO-60-58013-12

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Estimated Ship Date: May 5, 2026 if ordered today

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Estimated Ship Date: May 5, 2026 if ordered today

3AN 45 Degree Male Union

Part Number: NXO-60-58014-03

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Estimated Ship Date: May 5, 2026 if ordered today

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Estimated Ship Date: May 5, 2026 if ordered today

6AN 45 Degree Male Union

Part Number: NXO-60-58014-06

Not Yet Reviewed

Estimated Ship Date: May 5, 2026 if ordered today

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Estimated Ship Date: May 5, 2026 if ordered today

8AN 45 Degree Male Union

Part Number: NXO-60-58014-08

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Estimated Ship Date: May 5, 2026 if ordered today

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Estimated Ship Date: May 5, 2026 if ordered today