Earl's Fittings & More Performance Plumbing

Nobody plumbs it better than Earl's Performance! From hose and fitting, adapters, brake lines, radiator and heater hoses to coolers, gaskets, and more, Earl's Performance...

Nobody plumbs it better than Earl's Performance! From hose and fitting, adapters, brake lines, radiator and heater hoses to coolers, gaskets, and more, Earl's Performance Plumbing has you covered. Winning funny car and open-wheel racers have relied on Earl's aerospace-inspired, tough and reliable plumbing components for decades, so you can rest easy knowing they're up to the challenges of your unique ride. Plumb your whole vehicle with a little help from Earl's-the company even has specialized AN tools to get the job done right!

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

Earl's Performance introduces Vapor Guard OEM quick-connect fuel rail adapter fittings. These fuel line fittings offer an easy way to re-use existing OE fuel rails, fuel filters, and other components when doing an engine swap—or upgrading to Vapor Guard (or other AN plumbing). Each fitting has a -6 AN male flare and a metal retainer nut for a secure leak-free connection to the 5/16 or 3/8 in. SAE-style fuel tube. The adapters are machined from 6061 T6 aluminum with a black anodized finish. Order the size needed for your application. Additional product features and benefits: * Allows easy transition from AN plumbing to OEM late model fuel rails, fuel filters, and other fuel system components * Metal retainer nut is more secure than plastic clip * Choose from adapters that fit OE 5/16 or 3/8 in. tube on fuel rails (and other components) * Economically priced * Ideal for use with Earl's Vapor Guard hose and hose ends * Slim design for extra clearance

4.81 out of 5 stars ( 21 )

$27.98

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$33.93

Earl's Performance Tube Adapter Fittings

Earl's Performance tube adapter fittings will simplify your plumbing project! They are manufactured from quality aluminum and feature a black, red, or blue anodized finish. Both male and female tubing adapters are available. These adapter fittings were originally designed to meet the needs of the racing industry but will work with any low-pressure application to adapt aluminum tubing to AN or NPT type fittings. Order the fitting type you need.

4.8 out of 5 stars ( 160 )

$18.23

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$31.96

Earl's Performance AN to Inverted Flare Adapter Fittings

From carburetors and power steering to fuel pumps and transmissions, Earl's Performance has the fittings you need to get the job done. They're manufactured from steel or aluminum alloys that meet and exceed the minimum requirements for aerospace fittings. These AN to inverted flare adapter fittings are precision-machined to exacting tolerances, whether your project requires a straight or angled connector. Choose the style and sizes you need for long-lasting, trouble-free performance—exactly what the automotive industry can always count on from Earl's!

4.67 out of 5 stars ( 122 )

$12.87

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$38.37

On Sale

Earl's Performance AN to NPT Adapter Fittings

Earl's Performance adapters are available in anodized aluminum and zinc plated steel. Precision-machined to exacting tolerances for trouble-free performance, they allow you to connect AN and NPT fittings together quickly and easily.

4.87 out of 5 stars ( 141 )

$53.25

$4.25

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$47.74

Earl's Performance Weld-Less Fuel Return Fittings

Earl's Performance weld-less fuel return fittings install just like rivet nuts, eliminating the need to access the inside of the tank or cell. Just drill a hole, install return tube, insert the fitting with the rubber washer, and tighten the bolt! The fitting collapses or "mushrooms" from the underside, securing it to the tank and creating a perfect seal to the tank mating surfaces. They are machined from 6061 billet aluminum and tested with tank material thicknesses up to 1/8 in. (0.125 in.). Each Earl's kit includes an oversized Viton® fluorelastomer rubber sealing washer, hex head screw with steel washer, -6AN low-profile port plug with Viton® O-ring, and two tube options--fixed and flexible nylon. Additional features: * Accommodates 6AN, 8AN, 5/16 in., or 3/8 in. hose barb adapters (sold separately) * Integrated 3/8 in. hose barb feature effectively routes returning fuel below surface level * Eliminate overhead splash * Maintain consistent fuel pressure by keeping air out of fuel system * Knurled ribbed body helps prevent rotation * Suitable for pump gas and E85 * Compatible with steel or aluminum tanks up to 1/8 in. thick * Installs on flat horizontal surfaces mounted on top of tank

4.33 out of 5 stars ( 6 )

$47.09

On Sale

Earl's Performance Couplers

Earl's makes such a wide variety of couplers, we can't imagine a plumbing job that you couldn't use them on. The couplers are available for male-to-male, female-to-female, and male-to-female thread in AN and NPT versions. Earl's even makes swivel-to-swivel couplers, to make routing line a snap.

4.73 out of 5 stars ( 216 )

$52.11

$7.14

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$90.15

Earl's Performance AN Port Adapters

Earl's Performance special purpose adapters are manufactured from an aluminum alloy which meets and exceeds the minimum requirements for aerospace fittings. They're precision-machined to exacting tolerances for trouble-free and long-lasting performance, and feature a contoured port end for maximum flow.

4.89 out of 5 stars ( 37 )

$14.31

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$33.48

Earl's Performance Transmission Cooler Line Adapters

Earl's Performance transmission cooler line adapters make your plumb job easier. Integrating into the transmission and adapting to AN lines allows additional tunnel clearance and freedom that the original hard lines cannot. These adapters are available for many plumbing situations and custom applications. They're machined from high-quality materials, including nickel plated steel or billet aluminum with a black anodized finish, and have high-pressure capabilities. Order the adapter size and configuration needed for your application.

4.46 out of 5 stars ( 35 )

$20.09

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$72.55

Earl's Performance AN to Metric Adapter Fittings

Earl's Performance AN to metric adapters solve the troublesome problem of connecting AN line to metric-threaded components. The straight adapters are available in a variety of materials, finishes, sizes, and attachment styles.

4.79 out of 5 stars ( 109 )

$14.35

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$27.28

Earl's Performance Hardline Adapters

Earl's hardline adapter fittings are designed for use with copper, brass, aluminum, and welded steel hydraulic tubing. Their stainless steel construction helps to prevent corrosion and provide a solid, consistent seal. The fittings are available in a variety of sizes, in both straight and 90 degree angle, to accommodate nearly any hardline plumping situation and many custom applications.

4.54 out of 5 stars ( 28 )

$11.45

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$15.76

Earl's Performance LS Oil Pressure Gauge Adapter Fittings

Earl's Performance LS oil pressure gauge adapter fittings are ideal for installing aftermarket oil pressure gauges on GM LS engine swaps. They screw directly into the oil passage on the rear of the block, and options are available to fit most aftermarket sending units or mechanical gauge hoses. Earl's LS oil pressure gauge adapter fittings are manufactured from 2024 T8 aluminum with a black or blue anodized finish. Choose the style and size needed for your application.

5.0 out of 5 stars ( 17 )

$15.79

Earl's Performance LT Gen-V Oil Pressure Gauge Adapter Fittings

Earl's Performance LT Gen-V oil pressure gauge adapter fittings are needed when you remove the vacuum pump on the GM LT Gen-V 2014-and-up engines. When the vacuum pump is removed, it exposes two passages in the oil galley. These passages are metric straight threads—and they need to be plugged, or used for an oil pressure gauge or pressure sensor with the Holley EFI system (i.e., Avenger, Terminator X, HP, or Dominator). The adapters are available individually, in pairs (with a plug fitting), or in a kit that also includes an oil pressure sensor, adapter, and plug. Additional product details: * Vacuum pump delete adapters and plugs for GM LT Gen-V * Material: Stainless steel * Metric thread size in block: M12 x 1.75 straight thread with tapered seat * (1) adapter with female 1/8 in. NPT port * Ideal for engine swaps and racing applications that don't use the OEM vacuum pump

Not Yet Reviewed

$12.88

On Sale

Earl's Performance AN to Straight Cut O-Ring Fittings

Earl's Performance AN to straight cut O-ring fittings allow you to plumb from an AN line to a fitting that uses an O-ring seal. They are manufactured from high-quality aluminum and are anodized for protection against corrosion. Earl's Performance AN to straight cut O-ring fittings are available in different configurations and styles, so you can use them throughout your vehicle.

5.0 out of 5 stars ( 61 )

$31.18

$17.58

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$70.39

Earl's Performance BSPP Adapter Fittings

Earl's Performance AN to BSPP adapter fittings are precision-machined fittings just like you would expect from Earl's. Earl's British Standard Pipe Parallel fittings are available to adapt to most common AN sizes to suit your project.

1.0 out of 5 stars ( 1 )

$17.22

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$20.07

On Sale

Earl's Performance Hose Barb to Pipe Thread Adapters

Over the past half-century, Earl's Performance has designed and manufactured a wide variety of special adapter fittings to meet the needs of the racing industry. These hose barb to pipe thread adapters are no exception. Each one is precision-machined to exacting tolerances from lightweight aluminum for trouble-free performance, and features a bright blue or black anodized finish for good looks and corrosion resistance. They're available in a variety of sizes, angles, and attachment styles.

4.68 out of 5 stars ( 22 )

$41.96

$10.00

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$61.39

On Sale

Earl's Performance Oil Cooler Adapters

Earl's Performance oil cooler adapters replace the OEM oil filter housing. These oil filter bypass adapters allow for the installation of a remote oil filter and optional oil cooler. Their billet construction is black anodized and stainless hardware is included. They use O-ring seals for a leak-free installation.

4.93 out of 5 stars ( 15 )

$179.95

$101.15

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$357.95

Earl's Performance Hose Barb to AN Adapters

Earl's Performance hose barb to AN adapters feature lightweight 2024 aluminum construction. They facilitate an easy transition from traditional rubber hose to AN plumbing. Earl's adapters have a durable black anodized finish and can be used for many plumbing situations, as well as custom applications. They're available in a variety of sizes and male/female connection options.

4.67 out of 5 stars ( 3 )

$15.31

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$17.20

On Sale

Earl's Performance Oil Filter Block-Off Plates

Earl's Performance oil filter block-off plates are ideal for engine swaps where extra clearance is needed. The factory oil filter location on the Gen III Hemi may interfere with the crossmember or suspension in some engine swaps. Earl's Performance block-off plates and relocation kits allow the oil filter to be moved to a remote location. The block-off adapter screws on, instead of the oil filter, and two NPT ports on the block near the filter allow installation of the AN hoses for plumbing the remote filter. They are available in two thread sizes, both are made from aluminum with black anodized finished, and tagged with Earl's logo, making them attractive and corrosion resistant.

5.0 out of 5 stars ( 1 )

$29.43

$16.60

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$33.48

Earl's Performance Pressure Gauge Adapters

The ideal way to install a gauge is with Earl's Performance pressure gauge adapters. Offering adapters/couplers in a wide range of sizes, angles, materials, and finishes, you are sure to find exactly what you need. Whether for a fuel or oil pressure gauge, a gauge head adapter to connect your gauges with Earl's lines and fittings, a specific gauge fitting for your LS swap, or any other plumbing situation or custom build, Earl's will get you connected with the precision and performance of their premium pressure gauge adapters. Order the perfect fit for your project from Earl's.

4.75 out of 5 stars ( 69 )

$4.99

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$31.96

Earl's Performance Fuel Line Adapter Fittings

Earl's Performance fuel line adapter fittings are precision-machined to exacting tolerances for trouble-free performance. They are available in many configurations for numerous plumbing situations and custom applications. Earl's has the most complete line of adapter fittings in the industry!

3.8 out of 5 stars ( 5 )

$33.48

Earl's Performance NPT to Nipple Fittings

Earl's Performance NPT to nipple fittings are engineered for competition use with thin wall designs that allow for maximum fuel dispersion and minimal restriction. With easy gradual curves or straight styles, they allow for maximum fuel flow. They are available for any plumbing situation and many custom applications.

5.0 out of 5 stars ( 1 )

$21.54

Earl's Performance Reducers

Earl's Performance reducers have one job: connect different sized lines and hose together—or to other components in your fuel, cooling, or other fluid system. They're available in a variety of sizes, finishes, attachment styles and configurations. Order the reducers needed for your plumbing application.

4.71 out of 5 stars ( 62 )

$9.50

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$47.75

Earl's Performance Oil Filter Bypass Adapters

Many installations, particularly oil cooler installations, require the oil filter to be relocated. Earl's has bypass adapters for most spin-on and many bolt-on applications. They're designed to be quick and easy to install.

4.92 out of 5 stars ( 13 )

$84.45

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$130.95

Earl's Performance Electric Water Pump Block Adapters

Earl's Performance electric water pump block adapters provide options for mounting a pump on a GM LS engine. The three choices available will either mate a big block Chevy pump to the LS engine or provide easy installation of a remote mounted pump. They're made from black anodized billet aluminum and feature -12 AN O-ring female ports and a 1/8 in. NPT port for easy connection of steam tube plumbing. Earl's electric water pump block adapters include a pair of adapters, gaskets, and mounting bolts. Order the kit recommended for your application.

5.0 out of 5 stars ( 1 )

$177.95

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$204.95

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