Availability
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.
Showing In Stock Items. Show All 92 Items.
1/8 FPT X 16MM X1.5 LS TEMP PROBE ADAPTER
Part Number: FRA-493020-BL
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
BUILD IT WITH SUMMIT!
Fitting, Adapter, NPT to Metric, Straight, Aluminum, Natural, 1/8 in. NPT, M16 x 1.5, Each
Part Number: SUM-220126
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Gauge Adapters, Pressure and Temperature, Temperature Sender, Tach Resistor, Brass, Natural, GM, LS, Kit
Part Number: ATM-5284
Estimated Ship Date: Today
Estimated Ship Date: Today
Fittings and Adapters, Transmission Line Adapters, Straight, Aluminum, Natural, -6 AN Male AN, 9/16 in.-18 O-ring Male Straight Cut O-ring, Pair
Part Number: ICB-551191-LS01
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
WATER PUMP LS1
Part Number: MEZ-WPLS11720S
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Fitting, Adapter, AN to UNF, Straight, Aluminum, Black Anodized, -20 AN, 2 1/4 in. UNF, Each
Part Number: MEZ-WPP0243
Estimated Ship Date: Today
Estimated Ship Date: Today
Fitting, Adapter, NPT to Metric, Straight, Aluminum, Black Anodized, M12 x 1.5, 1/8 in., Each
Part Number: FRA-493022-BL
Estimated Ship Date: Today
Estimated Ship Date: Today
Temperature Sender Fittings, Straight, Brass, Natural, Gaskets, Kit
Part Number: NVU-99009-04
Estimated Ship Date: Today
Estimated Ship Date: Today
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
Estimated Ship Date: Today
Estimated Ship Date: Today
Fitting, Adapter, AN to Metric Threads, Straight, Aluminum, Black Anodized, -4 AN, M16 x 1.5, Each
Part Number: EAR-AT9919BFJERL
Estimated Ship Date: Today
Estimated Ship Date: Today
This product may not be eligible for select promotional offers
Fitting, Adapter, AN to UNF, Straight, Aluminum, Black Anodized, -16 AN, 2 1/4 in. UNF, Each
Part Number: MEZ-WPLS11716S
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Fuel Fitting, Quick-Connect, Chevy LS, LT, Ford Coyote, Aluminum, Black Anodized, Straight, 3/8 in., -6 AN, Each
Part Number: TNK-640853
Estimated Ship Date: Today
Estimated Ship Date: Today
Coolant Temperature Sensor Adapter, Adapts 1/8 in. NPT Sensors to GM LS and LT Gen III/IV/V 28mm Engine Block Coolant Ports, Billet Aluminum, Each
Part Number: ICB-551782-125
Estimated Ship Date: Today
Estimated Ship Date: Today
Gauge Adapters, Straight Fitting, Aluminum, Natural, 16mm x 1.5 Female Threads, Designed for Use with ICT LS Gen 4 Valley Pan Covers Only, Each
Part Number: ICB-551623
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Coolant Temperature Sensor Adapter, Adapts Chevy Small Block and Big Block 1/4 in. NPT Sensors to GM LS Engines, Billet Aluminum, Each
Part Number: ICB-551734
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Coolant Temperature Sensor Adapter, Adapts M12 x 1.5 Sensors to GM LS and LT Gen III/IV/V 28mm Engine Block Coolant Ports, Billet Aluminum, Each
Part Number: ICB-551782-M1215
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Oil Pressure Sensor Adapter, Adapts Factory BMW M12 x 1.5 Sensors to GM LS Engines, Billet Aluminum, Each
Part Number: ICB-551712-M1215
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Oil Pressure Sensor Adapter, Adapts Factory Porsche M14 x 1.5 Sensors to GM LS Engines, Billet Aluminum, Each
Part Number: ICB-551712-M1415
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
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
Estimated Ship Date: Today
Estimated Ship Date: Today
Coolant Temperature Sensor Adapter, Adapts 3/8 in. NPT Sensors to GM LS and LT Gen III/IV/V 28mm Engine Block Coolant Ports, Billet Aluminum, Each
Part Number: ICB-551782-375
Estimated Ship Date: Today
Estimated Ship Date: Today
Fitting and Adapters, Holley, Replacement, Plugs and Fittings, NPT to BSPT, Straight, Aluminum, Chrome, 3/4 in. NPT, for LT/LS Cooling Manifold, Kit
Part Number: HLY-97-177
Estimated Ship Date: Today
Estimated Ship Date: Today
This product may not be eligible for select promotional offers
Gauge Adapter, Straight, Long, Aluminum, Natural, M12 x 1.5 Male Threads, 3/8 in. NPT Female Threads, LS, Each
Part Number: SUM-220697
Estimated Ship Date: Today
Estimated Ship Date: Today
OIL PRESSURE FITTING ADAPTER, LS LT M16 X 1.5 TO 1/8 NPT
Part Number: MOR-49515
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Oil Sensor Adapter, LS Gen IV OEM Oil Sensor Adapter
Part Number: PGP-PRP-4523
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Gauge Adapter, Straight, Aluminum, Natural, M12 x 1.5 Male Threads, 3/8 in. NPT Female Threads, LS, Each
Part Number: SUM-220698
Estimated Ship Date: Today
Estimated Ship Date: Today
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