$25 Off $250 / $50 Off $500, on Summit Racing Brand Products - Use Promo Code: BUILDIT

$25 Off $250 / $50 Off $500, on Summit Racing Brand Products - Use Promo Code: BUILDIT

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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 72

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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Gauge Adapter, Oil Pressure Sending Extension, Straight, 2.250 in. Length, -4 AN, 1/8 in. NPT, Aluminum, Red Anodized, Each

Part Number: PFF-15-1041

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Fitting, Adapter, NPT to Metric, Straight, Aluminum, Black Anodized, M12 x 1.5, 1/8 in., Each

Part Number: FRA-493022-BL

3.0 out of 5 stars ( 2 )

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Fitting, Adapter, AN to Metric Threads, Straight, Aluminum, Black Anodized, -4 AN, M16 x 1.5, Each

Part Number: EAR-AT9919BFJERL

5.0 out of 5 stars ( 2 )

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1/8 FPT X 16MM X1.5 LS TEMP PROBE ADAPTER

Part Number: FRA-493020-BL

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Fittings, Gauge Adapters, Oil Pressure, Coolant Temperature, Billet Aluminum, Natural, Set of 6

Part Number: ICB-551156

4.83 out of 5 stars ( 6 )

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Gauge Adapters, Straight Fitting, Billet Aluminum, Natural, 16mm x 1.5 Female Threads, Oil Pressure Sensor Relocation, GM, LS Series V8 Engines, Each

Part Number: ICB-551534

4.8 out of 5 stars ( 10 )

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Oil Pressure Sensor Gauge Adapter, Male M16-2.0, Female, 1/8-27 NPT, Each

Part Number: ICB-551142

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1/8" NPT Male to M16-1.5 Female Oil Pressure Sensor Adapter Fitting

Part Number: ICB-F125NPFM1615

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Oil Pressure Sensor Adapter, For Gen V LT Valley Pan, Fits ICT Billet 551168 and 551171 Part Numbers, Billet Aluminum, Each

Part Number: ICB-551166

5.0 out of 5 stars ( 2 )

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Gauge Adapters, Oil Pressure Sensor Relocation Adapter Port, LT Gen V, Chevrolet, Each

Part Number: ICB-551942

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Oil Pressure Sensor Adapter, Adapts Factory Porsche M14 x 1.5 Sensors to GM LS Engines, Billet Aluminum, Each

Part Number: ICB-551712-M1415

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Oil Pressure Sensor Adapter, Adapts Factory BMW M12 x 1.5 Sensors to GM LS Engines, Billet Aluminum, Each

Part Number: ICB-551712-M1215

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OIL TEM ADAPTER

Part Number: FRA-493025-BL

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

1/8" NPT Oil Pressure Sensor Adapter Port - For ICT Gen 4 LS Valley Pans

Part Number: ICB-551623-125

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Fitting, Pressure Gauge Adapter, Straight, Aluminum, Black, -6 AN Male, -6 AN Female, 1/8 in. NPT Female, Each

Part Number: EAR-AT100199ERL

4.78 out of 5 stars ( 37 )

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Gauge Sender Adapters, Brass, 1/8 in. NPT, to, 1/4 in., 3/8 in., 1/2 in., Set of 3

Part Number: NVU-99004-40

4.6 out of 5 stars ( 10 )

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Fitting, Adapter, Straight Gauge Head, Male -3 AN to Female 1/8 NPT, Steel, Each

Part Number: EAR-968703ERL

5.0 out of 5 stars ( 5 )

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Gauge Adapter, Pressure, Straight, -4 AN Male Threads, 1/8 in. NPT Male Threads, 1.00 in. Extension Fitting

Part Number: EAR-968804ERL

5.0 out of 5 stars ( 1 )

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Fitting, Adapter, Pressure Gauge, -8 AN Male to -8 AN Female, 1/8 in. NPT Gauge Port, Aluminum, Blue, Each

Part Number: EAR-100200ERL

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Fitting, Adapter, Pressure Gauge, -4 AN Male to -4 AN Female, 1/8 in. NPT Gauge Port, Aluminum, Blue, Each

Part Number: EAR-100201ERL

Not Yet Reviewed

Estimated Ship Date: Feb 2, 2026 if ordered today

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Estimated Ship Date: Feb 2, 2026 if ordered today

Fuel Pressure Gauge Adapter, Aluminum, Black, Straight, Male -8 AN, Female -8 AN, Female1/8 NPT, Each

Part Number: EAR-AT100200ERL

3.5 out of 5 stars ( 6 )

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Gauge Sending Adapter Fititngs, 1/8 NPT to M12 x 1.5, 1/8 NPT to M16 x 1.5 fitting, Tachometer Resistor, Kit

Part Number: IZL-8014LS

2.0 out of 5 stars ( 7 )

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Fitting, Adapter, Straight Gauge Head, Male -4 AN to Female 1/8 NPT, Steel, Each

Part Number: EAR-968704ERL

5.0 out of 5 stars ( 2 )

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-4 Male to -4 Fem Gage Adapter

Part Number: EAR-AT100201ERL

5.0 out of 5 stars ( 1 )

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