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.

Showing In Stock Items. Show All 322 Items.

Individual Parts

Part Groups

Results 1 - 25 of 278

Aeromotive Fuel Rail Fitting Adapters 15125

Fitting, Adapter, Fuel Rail Type, Straight, Billet Aluminum, Black, 14mm Male Spring Lock, -8 AN Male Thread

Part Number: AEI-15125

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Summit Racing™ Fuel Rail Fitting Kits SUM-220009B

Fittings, Fuel Rail Fittings, Aluminum, Black, TPI, One -6 AN to M14 x 1.5 O-ring, One -6 AN to M16 x 1.5 O-ring, Pair

Part Number: SUM-220009B

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Aeromotive Fuel Rail Fitting Adapters 15103

Fittings and Adapters, Fuel Rail, Stainless Steel, Natural, -6 AN Male to 5/16 in. Male Quick Connect, without O-rings, Universal, Each

Part Number: AEI-15103

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Aeromotive Fuel Rail Fitting Adapters 15123

Fitting, Adapter, Fuel Rail Type, Straight, Billet Aluminum, Black, 12mm Male Spring Lock, -6 AN Male Thread

Part Number: AEI-15123

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Aeromotive Fuel Rail Fitting Adapters 15124

Fitting, Adapter, Fuel Rail Type, Straight, Billet Aluminum, Black, 14mm Male Spring Lock, -6 AN Male Thread

Part Number: AEI-15124

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Earl's Performance Vapor Guard OEM Quick-Connect Fuel Rail Adapter Fittings 751166ERL

Fuel Line Adapter Fitting, 3/8 in. Female Quick-Connect, To -6 AN Male AN, Straight, Aluminum, Black Anodized, Each

Part Number: EAR-751166ERL

4.71 out of 5 stars ( 14 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Russell Fuel Rail Fitting Adapters 640853

Fittings, Fuel Rail Fitting, Aluminum, Black, Straight, 3/8 in., -6 AN, Each

Part Number: RUS-640853

4.85 out of 5 stars ( 20 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Earl's Performance Vapor Guard OEM Quick-Connect Fuel Rail Adapter Fittings 751156ERL

Fuel Line Adapter Fitting, 5/16 in. Female Quick-Connect, To -6 AN Male AN, Straight, Aluminum, Black Anodized, Each

Part Number: EAR-751156ERL

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Tanks Inc. Fuel Rail Fitting Adapters 640853

Fuel Fitting, Quick-Connect, Chevy LS, LT, Ford Coyote, Aluminum, Black Anodized, Straight, 3/8 in., -6 AN, Each

Part Number: TNK-640853

5.0 out of 5 stars ( 13 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Earl's Performance Quick-Connect Fuel Rail Adapter Fittings AT992066ERL

Fitting, Fuel Line Adapter, Straight, 3/8 in. Female Quick-connect, -6 AN Male Threads, Gauge Port, Black Anodized, Each

Part Number: EAR-AT992066ERL

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Holley Fuel Rail Adapter Fittings 534-211

Fitting, Straight, Adapter, -6 AN Male to GM Factory Fuel Line Quick-Connect, 3/4 in. O-Ring Male Port Plug, Aluminum, Black Anodized, Each

Part Number: HLY-534-211

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Russell Fuel Rail Fitting Adapters 640543

Fitting, Adapter Fitting, Regulator To Fuel Rail, 3/8 in. NPT Swivel To -10AN O-ring Port, Each

Part Number: RUS-640543

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Nitrous Express Fuel Rail Adapters 16183

Nitrous Express Fuel Rail Adapters 16183

Fuel Rail Adapter, Aluminum, Black Anodized, Ford, 1996-2004, 4.6L, Each

Part Number: NEX-16183

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Sep 30, 2025 if ordered today

...Loading

Estimated Ship Date: Sep 30, 2025 if ordered today

Tanks Inc. Fuel Rail Fitting Adapters IFA3856

Fuel Line Adapter Fitting 3/8" to 5/16"

Part Number: TNK-IFA3856

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Russell Fuel Rail Fitting Adapters 640900

Fitting, Fuel Rail Fitting, Aluminum, Blue Anodized, Straight, 14mm, -6 AN, Each

Part Number: RUS-640900

2.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Russell Fuel Rail Fitting Adapters 640857

Fuel Line Adapter Fittings, Fuel Rail, 3/8 in. Quick-Connect, -6 AN Male Threads, Aluminum, Black Anodized, Set of 25

Part Number: RUS-640857

Not Yet Reviewed

Estimated Ship Date: Oct 20, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 20, 2025 if ordered today

ICT Billet Fuel Rail Adapter Fittings AN809-02B

Fitting, Fuel Line Adapter, Straight, Black Anodized, 3/8 in. Female Quick-connect, -6 AN Male Threads, Each

Part Number: ICB-AN809-02B

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Russell Fuel Rail Fitting Adapters 640940

Fitting, Fuel Rail Fitting, Steel, Zinc, Straight, 3/8 in., -6 AN, Each

Part Number: RUS-640940

4.58 out of 5 stars ( 12 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Russell Fuel Rail Fitting Adapters 644053

Fitting, 90 Degree, Adapter, -6 AN Male O-Ring, 3/8 Male Quick-Disconnect, Aluminum, Black Anodized, Each

Part Number: RUS-644053

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Aeromotive Fuel Rail Fitting Adapters 15104

LT-1 Fuel Rail Fitting

Part Number: AEI-15104

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Oct 6, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 6, 2025 if ordered today

Holley Fuel Rail Adapter Fittings 534-321

Fittings, Fuel Rail Fitting, Aluminum, Black, 180 Degree, -8 AN Male, -8 AN Female, Each

Part Number: HLY-534-321

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Nitrous Express Fuel Rail Adapters 16190

Fitting, Fuel Rail Adapter, Late Model, Billet Fuel Line Adapter, 5/16/8MM, Gauge Port, Each

Part Number: NEX-16190

4.86 out of 5 stars ( 7 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Tanks Inc. Fuel Rail Fitting Adapters R640610

FITTING -6 AN Male to 5/8"-18 IF Female - Clear Zinc

Part Number: TNK-R640610

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Russell Fuel Rail Fitting Adapters 644020

Fitting, Push-On EFI, Straight, Male -6 AN, Male Quick-Connect 3/8 in., Zinc Plated, Each

Part Number: RUS-644020

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Russell Fuel Rail Fitting Adapters 640903

Fitting, Fuel Rail Fitting, Aluminum, Black Anodized, Straight, 14mm, -6 AN, Each

Part Number: RUS-640903

3.5 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Nitrous Express Fuel Rail Adapters 16372

Fittings, Fuel Rail Adapter, 3/8 Fuel Rail, -6AN Male, Black Anodized, Each

Part Number: NEX-16372

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Page 1 of 12
Next