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PitStopUSA.com - Fittings & Hoses

Plumb your race car right and get your oil, fuel and other fluids where they need to go safely. Pit Stop USA has fittings, hose ends, valves, and plugs in a variety of sizes and finishes. PitStopUSA.com stock high performance racing hoses in rubber, lighweight nylon braided or braided stainless steel. We stock complete fuel line kits, transmission fluid lines, radiator hoses, clamps, brackets, power steering hoses and fittings and the specialized AN fitting tools you need to put it all together right.

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Adapters and Fittings

Aviation fluid transfer technology was introduced to the automotive performance market over five decades ago and top racing teams everywhere rely on them. We offer the most complete line of adapter...More Details »

Air Conditioning Fittings, Lines and Hoses

Replacement and accessory Air Conditioning hose kits and fittings including Barrier Refrigerant Hose, Aluminum Hardline Kits, traditional Flexible Line Kits and Refrigerant Hose Kits.

Aluminum Tubing and Bends

T-6061 aluminum mandrel-bent tubing, U-bends, reducers, couplers and elbows allow you to fabricate air intake or intercooler assemblies like a pro.

Brake Fittings, Lines and Hoses

Aviation fluid transfer technology was introduced to the automotive performance market over five decades ago and top racing teams everywhere rely on them. PitStopUSA.com carries the most extensive...More Details »

Brake Hoses & Lines

Race cars require maximum braking performance so we offer a great selection of brake lines, brakes hoses and brake fittings. Whether you require stainless steel brake lines, brake line kits, teflon...More Details »

Fuel System Fittings, Adapters and Filters

You can create incredible horsepower and torque simply by getting the right mix of air and fuel into your engine. We offer a full line of fuel system components to ensure you're supplying clean...More Details »

Hardline

Hard-line tubing is easily formed to virtually any requirement and can be used with tube nuts, tube sleeves, compression adapters, and hard-line tools. Choose from Stainless Steel, Easy-Form, Steel, or Aluminum Hard-Line Tubing.

Hose

Hoses are available in various styles and materials to fit any application. From high-pressure power steering hose to super-light PTFE Kevlar braided racing hose, we have you covered.

Hose & Fitting Accessories

Hose & Fitting Tools

Pit Stop USA is The Online Motorsports Superstore! We feature Hose & Fitting Tools at low everyday prices.

Hose Clamps, Brackets and Separators

Getting the plumbing job done right requires a variety of hose clamps, line clamps and hose and tubing separators. Pit Stop USA has a great selection of plumbing accessories to get the job done right with that professional look.

Manifolds

Manifolds are available in several configurations and are perfect for all oil, coolant or fuel systems where multiple lines need to be condensed to one with optimal flow.

Special Purpose Fitting and Adapters

Valves and Shut-Offs

Valves are available in several different styles for shut-offs, quick disconnect, dry break, one way valves, or breathers.

Weld-On Bungs and Fittings

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More About Fittings & Hoses

Plumbing AN Dash Size / Fractional Equivalent Guide

SAE 37° Fractional SAE 37° Fractional SAE 37° Fractional Dash Size Equivalent

AN Fittings Actual Thread Sizes

AN Fitting Sizes:

-02 .............1/8"

-03 .............3/16"

-04 .............1/4"

-05 .............5/16"

-06 ............ 3/8"

-08 ............ 1/2"

-10 ............ 5/8"

-12 ............ 3/4"

-14 ............ 7/8"

-16 ............ 1"

- 20 .........1-1/4"

-24 ......... 1-1/2"

-32 ............ 2"

Pit Stop USA is The Online Motorsports Superstore!

We feature automotive plumbing and race car plumbing from Aeroquip, Earls Performance Plumbing, Jiffy-Tite, Russell Performance Products and XRP Performance Products. We offer high performance automotive hose like Earls ProLite 350 Hose, Earls PerformOFlex Hose, Earls AutoFlex Hose, Earls Super Stock Hose, Earls Ultra Flex 650 Hose, Aeroquip AQP Racing Hose, Aeroquip StartLite Hose, Aeroquip Socketless Hose, Aeroquip AQP Power Steering Hose, Russell Proflex Stainless Steel Braided Hose and XRP Stainless Steel Braided CPE Race Hose. We stock AN hose ends like Earls UltraFlex Hose Ends, Earls SwivelSeal Hose Ends, Earls SwivelSeal AnoTuff Hose Ends, Earls AutoFit Hose Ends, Earls TubeMate Auto Fit Hose Ends, Earls AutoMate and AutoCrimp Hose Ends, Earls Super Stock Hose Ends, Aeroquip Reusable AQP Fittings, Aeroquip StartLite Fittings, Aeroquip AQP Hose Ends, XRP Aluminum Hose Ends, Russell Full Flow Hose Ends, XRP Aluminum Push-On Hose Ends and XRP Double Swivel Forged Hose Ends. We offer Earls AN fittings, Earls AN adapters, Aeroquip AN fittings, Aeroquip AN adapters, Jiffy-Tite Qwik Release Fittings, Russell Speed Bleeders, XRP AN fittings, XRP AN adapters. Products include Aluminum NPT Pipe Thread to AN Adapters, NPT Adapters, Aluminum AN to AN Flare Adapters, Weld Fittings, AN Caps and Plugs, Carburetor fittings, Power Steering fittings, Fuel Pump fittings, Hose Barb to Pipe Thread Adapters, Anodized Aluminum AN Adapters, Steel NPT Pipe Thread to AN Adapters, Steel AN to AN Adapters, Fuel Line Kits, Carburetor Adapters, Fuel System Adapters, Fuel System Fittings, Fuel Distribution Blocks, Gauge Adapters, Shutoff Valves, Check Valves, Power Steering Hose Ends, Brake System Adapters, brake hose ends, Stat-O-Seals, Tube Nuts, bulkhead adapters, petcocks, hose clamps, hose separators, quick disconnects and AN plumbing tools.