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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 43

Fitting, Adapter, AN to Metric Threads, Straight, Aluminum, Black Anodized, -6 AN, M10 x 1.0, Each

Part Number: SUM-220620B

5.0 out of 5 stars ( 5 )

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Fitting, Adapter, Male AN to Male AN Straight Cut O-Ring, Straight, Aluminum, Black, -10AN to -10AN O-Ring, Each

Part Number: FLD-FIT10ORB10AN

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Fitting, Adapter, Male AN to Male AN Straight Cut O-Ring, Straight, Aluminum, Black, -12AN to -10AN O-Ring, Each

Part Number: FLD-FIT10ORB12AN

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Fitting, Adapter, AN to Metric Threads, Straight, Aluminum, Black Anodized, -6 AN, M16 x 1.5 O-ring, Each

Part Number: SUM-220627B

4.5 out of 5 stars ( 6 )

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Fitting, Adapter, AN to Metric Threads, Straight, Steel, Zinc, -6 AN, M18 x 1.5 O-ring, Each

Part Number: SUM-220626

5.0 out of 5 stars ( 2 )

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Fitting, Adapter, AN to NPT, Straight, Aluminum, Black Anodized, -16 AN, 1 in. NPT, Each

Part Number: MEZ-WP1016S

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Fitting, Adapter, Male AN to Male AN Straight Cut O-Ring, Straight, Aluminum, Black, -20AN to -20AN O-Ring, Each

Part Number: FLD-FIT20ORB20AN

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Fitting, Adapter, AN to NPT, Straight, Aluminum, Black Anodized, -20 AN, 1 in. NPT, Each

Part Number: MEZ-WP1020S

5.0 out of 5 stars ( 1 )

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Fitting, Adapter, AN to Straight Cut, Straight, Aluminum, Black Anodized, -10 AN, 3/4-16 in., Each

Part Number: FLE-FPE-34873-A

5.0 out of 5 stars ( 1 )

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-8 to 3/4"-16 Straight Male Black w/ O-Ring

Part Number: FLE-FPE-APT-3408

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Fitting, Adapter, AN to Straight Cut, Straight, Aluminum, Black Anodized, -10 AN, 7/8-14 in., Each

Part Number: FLE-FPE-34805-A

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Fitting, Adapter, AN to Metric Threads, Straight, Aluminum, Blue Anodized, -6 AN, M10 x 1.0, Each

Part Number: SUM-220620

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Fitting, Adapter, AN to Metric Threads, Straight, Aluminum, Blue Anodized, -6 AN, M14 x 1.5 O-ring, Each

Part Number: SUM-220628

4.5 out of 5 stars ( 2 )

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Fitting and Adapter, Straight, Aluminum, Black, -6 Male AN, 9/16 in.-18 Male Straight Cut O-ring, Each

Part Number: FLE-FPE-APT91606

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Fitting, Adapter, AN to Metric Threads, Straight, Aluminum, Clear Anodized, -6 AN, M10 x 1.0, Each

Part Number: SUM-220620C

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Fuel Line Repair Kit, Male Thread, M16 x 1.5, 3/8 Nipple, 4 in. length, Steel, Each

Part Number: RNB-800-170

5.0 out of 5 stars ( 3 )

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Fitting, Adapter, AN to Metric Threads, Straight, Aluminum, Blue Anodized, -6 AN, M16 x 1.5 O-ring, Each

Part Number: SUM-220627

5.0 out of 5 stars ( 1 )

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Fitting, Adapter, AN to NPT, Straight, Aluminum, Black Anodized, -12 AN, 1 in. NPT, Each

Part Number: MEZ-WP1012S

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Fitting, Adapter, Male AN to Male AN Straight Cut O-Ring, Straight, Aluminum, Black, -16AN to -20AN O-Ring, Each

Part Number: FLD-FIT20ORB16AN

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Fitting, Adapter, AN to Metric Threads, Straight, Aluminum, Black Anodized, -6 AN, M14 x 1.5, Each

Part Number: SUM-220625B

1.0 out of 5 stars ( 1 )

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Fitting, Adapter, AN to NPT, Straight, Aluminum, Polished, -16 AN, 1 in. NPT, Each

Part Number: MEZ-WP1016U

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Fitting, Adapter, AN to Straight Cut, 90 Degree, Aluminum, Black Anodized, -8 AN, -8 AN O-Ring, Swivel, Each

Part Number: FLE-S0544

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Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

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

Part Number: URR-K057

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Fitting, AN To Inverted Flare Fitting, Adapter Style, Straight, Steel, Zinc Color, -6 AN Male AN, 5/8 in.-18 Inverted Flare Male Inverted Flare, Each

Part Number: TNK-R640380

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