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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 70

AutoMeter Radiator Hose Adapters 2282

Mail - In Rebate

Rebate amount based on part(s) total.

Rebate Expires: 12/31/2025

Get up to $150 back after rebate when you buy products from AutoMeter Brands! Go to: http://summitracing.com/go/atm

Get up to $150 back after rebate when you buy AutoMeter Products! Also includes Auto Gage, Dedenbear, Marine, Spek-Pro and Stack Brands. Spend $100-$199 and get $10 back. Spend $200-$449 and get $25 back. Spend $450-$699 and get $50 back. Spend $700-$999 and get $75 back. Spend $1,000-$1,499 and get $100 back. Spend $1,500 or more and get $150 back. Go to http://summitracing.com/go/atm for complete offer information. Valid on purchases made between 11/1/25 and 12/31/25. Rebate submission must be postmarked by 1/31/26. Limit one rebate per household. Allow up to 12 weeks for processing. Purchase amount is the subtotal before taxes and shipping.

Radiator Hose Adapter, Aluminum, 1 in. to 1.25 in., with Sending Unit Port, Kit

Part Number: ATM-2282

4.27 out of 5 stars ( 11 )

Estimated Ship Date: Monday 11/24/2025

  • Mail - In Rebate

    Rebate amount based on part(s) total.

    Rebate Expires: 12/31/2025

    Get up to $150 back after rebate when you buy products from AutoMeter Brands! Go to: http://summitracing.com/go/atm

    Get up to $150 back after rebate when you buy AutoMeter Products! Also includes Auto Gage, Dedenbear, Marine, Spek-Pro and Stack Brands. Spend $100-$199 and get $10 back. Spend $200-$449 and get $25 back. Spend $450-$699 and get $50 back. Spend $700-$999 and get $75 back. Spend $1,000-$1,499 and get $100 back. Spend $1,500 or more and get $150 back. Go to http://summitracing.com/go/atm for complete offer information. Valid on purchases made between 11/1/25 and 12/31/25. Rebate submission must be postmarked by 1/31/26. Limit one rebate per household. Allow up to 12 weeks for processing. Purchase amount is the subtotal before taxes and shipping.

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Estimated Ship Date: Monday 11/24/2025

Fitting, Adapter, AN to Inverted Flare, Straight, Aluminum, Black Anodized, -6 AN, 1/2-20 in. Inverted Flare, Each

Part Number: SUM-220668B

4.68 out of 5 stars ( 25 )

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

Fitting, Adapter, NPT to Hose Barb, 90 Degree, Aluminum, Clear Anodized, 1/2 in. NPT, 5/8 in. Hose Barb, Each

Part Number: EDL-8179

4.78 out of 5 stars ( 9 )

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

Fitting, Adapter, NPT to Hose Barb, Straight, Aluminum, Black Anodized, 1/2 in. NPT, 5/8 in. Hose Barb, Each

Part Number: EDL-8159

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

Fitting, Adapter, NPT to Hose Barb, Straight, Aluminum, Clear Anodized, 1/2 in. NPT, 5/8 in. Hose Barb, Each

Part Number: EDL-8160

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

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

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

Fitting, Adapter, NPT to Hose Barb, Straight, Aluminum, Black Anodized, 1/2 in. NPT, 3/4 in. Hose Barb, Each

Part Number: EDL-8183

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

Fitting, Adapter, NPT to Hose Barb, 90 Degree, Aluminum, Clear Anodized, 1/2 in. NPT, 3/4 in. Hose Barb, Each

Part Number: EDL-8166

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

Fitting, Adapter, AN to Inverted Flare, Straight, Aluminum, Blue Anodized, -6 AN, 5/8-18 in. Inverted Flare, Each

Part Number: SUM-220667

5.0 out of 5 stars ( 10 )

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

Fitting, Temperature Gauge, 5/8"-18 Threaded Hole for 1/2" NPT Hole, Brass

Part Number: MOR-63645

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

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 )

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

Fitting, Adapter, NPT to Hose Barb, Straight, Aluminum, Black Anodized, 3/8 in. NPT, 3/8 in. Hose Barb, Each

Part Number: EDL-8117

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

Fitting, Adapter, NPT to Hose Barb, 90 Degree, Aluminum, Clear Anodized, 3/8 in. NPT, 3/8 in. Hose Barb, Each

Part Number: EDL-8168

3.33 out of 5 stars ( 3 )

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

AutoMeter Radiator Hose Coolant Adapters 2281

Mail - In Rebate

Rebate amount based on part(s) total.

Rebate Expires: 12/31/2025

Get up to $150 back after rebate when you buy products from AutoMeter Brands! Go to: http://summitracing.com/go/atm

Get up to $150 back after rebate when you buy AutoMeter Products! Also includes Auto Gage, Dedenbear, Marine, Spek-Pro and Stack Brands. Spend $100-$199 and get $10 back. Spend $200-$449 and get $25 back. Spend $450-$699 and get $50 back. Spend $700-$999 and get $75 back. Spend $1,000-$1,499 and get $100 back. Spend $1,500 or more and get $150 back. Go to http://summitracing.com/go/atm for complete offer information. Valid on purchases made between 11/1/25 and 12/31/25. Rebate submission must be postmarked by 1/31/26. Limit one rebate per household. Allow up to 12 weeks for processing. Purchase amount is the subtotal before taxes and shipping.

Adapter, Heater Hose, 0.75 in., Each

Part Number: ATM-2281

4.86 out of 5 stars ( 7 )

Estimated Ship Date: Monday 11/24/2025

  • Mail - In Rebate

    Rebate amount based on part(s) total.

    Rebate Expires: 12/31/2025

    Get up to $150 back after rebate when you buy products from AutoMeter Brands! Go to: http://summitracing.com/go/atm

    Get up to $150 back after rebate when you buy AutoMeter Products! Also includes Auto Gage, Dedenbear, Marine, Spek-Pro and Stack Brands. Spend $100-$199 and get $10 back. Spend $200-$449 and get $25 back. Spend $450-$699 and get $50 back. Spend $700-$999 and get $75 back. Spend $1,000-$1,499 and get $100 back. Spend $1,500 or more and get $150 back. Go to http://summitracing.com/go/atm for complete offer information. Valid on purchases made between 11/1/25 and 12/31/25. Rebate submission must be postmarked by 1/31/26. Limit one rebate per household. Allow up to 12 weeks for processing. Purchase amount is the subtotal before taxes and shipping.

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Estimated Ship Date: Monday 11/24/2025

Fitting, Adapter, NPT to Hose Barb, Straight, Aluminum, Clear Anodized, 3/8 in. NPT, 5/8 in. Hose Barb, Each

Part Number: EDL-8188

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

Gauge Adapters, Dual Inline Oil Sensor Manifold Blocks, Straight, Aluminum, Black, -10 AN O-ring, -10 AN O-ring, 1/8 in. NPT, Female Threads, Each

Part Number: IRP-ENV-150

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

Fuel Line Adapter Fittings, Fuel Inlet Fittings, Straight, M14 x 1.5 Male Threads, M18 x 1.5 Male Threads, Stainless Steel, Black Anodized, Each

Part Number: PPE-113071000

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

AutoMeter Pressure Gauge Adapters 3280

Mail - In Rebate

Rebate amount based on part(s) total.

Rebate Expires: 12/31/2025

Get up to $150 back after rebate when you buy products from AutoMeter Brands! Go to: http://summitracing.com/go/atm

Get up to $150 back after rebate when you buy AutoMeter Products! Also includes Auto Gage, Dedenbear, Marine, Spek-Pro and Stack Brands. Spend $100-$199 and get $10 back. Spend $200-$449 and get $25 back. Spend $450-$699 and get $50 back. Spend $700-$999 and get $75 back. Spend $1,000-$1,499 and get $100 back. Spend $1,500 or more and get $150 back. Go to http://summitracing.com/go/atm for complete offer information. Valid on purchases made between 11/1/25 and 12/31/25. Rebate submission must be postmarked by 1/31/26. Limit one rebate per household. Allow up to 12 weeks for processing. Purchase amount is the subtotal before taxes and shipping.

Fitting, Straight, 1/16 in. NPT Male to 1/8 in. NPT Female, Brass, Each

Part Number: ATM-3280

4.33 out of 5 stars ( 9 )

Estimated Ship Date: Monday 11/24/2025

  • Mail - In Rebate

    Rebate amount based on part(s) total.

    Rebate Expires: 12/31/2025

    Get up to $150 back after rebate when you buy products from AutoMeter Brands! Go to: http://summitracing.com/go/atm

    Get up to $150 back after rebate when you buy AutoMeter Products! Also includes Auto Gage, Dedenbear, Marine, Spek-Pro and Stack Brands. Spend $100-$199 and get $10 back. Spend $200-$449 and get $25 back. Spend $450-$699 and get $50 back. Spend $700-$999 and get $75 back. Spend $1,000-$1,499 and get $100 back. Spend $1,500 or more and get $150 back. Go to http://summitracing.com/go/atm for complete offer information. Valid on purchases made between 11/1/25 and 12/31/25. Rebate submission must be postmarked by 1/31/26. Limit one rebate per household. Allow up to 12 weeks for processing. Purchase amount is the subtotal before taxes and shipping.

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Estimated Ship Date: Monday 11/24/2025

Fitting and Adapters, Holley, Replacement, Plugs and Fittings, NPT to BSPT, Straight, Aluminum, Chrome, for 20-240 and 20-240BK Manifolds, Kit

Part Number: HLY-97-301

Not Yet Reviewed

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

Fitting, Reducer, NPT to NPT, Straight, Brass, Nickel Plated, 3/8 in. NPT, 1/8 in. NPT, Each

Part Number: NEX-16127

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

Fitting, Adapter, NPT to Hose Barb, Straight, Aluminum, Clear Anodized, 1/2 in. NPT, 1/2 in. Hose Barb, Each

Part Number: EDL-8121

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

Fitting, Marine Outdrive Oil Port Adapter, AN to Straight Cut, Straight, Aluminum, Black Anodized, -4 AN, 3/8-16 in. UNC, Each

Part Number: SUM-220720B

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

Fitting, Fuel Rail, LT-1 EFI Fuel Rail Distribution Block, Two 1/8 in. NPT x -4 AN fittings Included, Each

Part Number: NXO-00-01803-LT1

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

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Estimated Ship Date: Dec 8, 2025 if ordered today

Fitting, Adapter, NPT to Hose Barb, 90 Degree, Aluminum, Black Anodized, 1/2 in. NPT, 3/4 in. Hose Barb, Each

Part Number: EDL-8165

Not Yet Reviewed

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

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