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Performance Automotive Hoses & Fittings
Get your fuel and just about any other fluids where they need to go! We have fittings, valves, hose ends, and plugs in a wide assortment of sizes, materials, and finishes,...
Get your fuel and just about any other fluids where they need to go! We have fittings, valves, hose ends, and plugs in a wide assortment of sizes, materials, and finishes, plus hoses to match in materials ranging from rubber to braided stainless steel. We’ve got complete fuel line kits, transmission fluid lines, radiator hoses, clamps, brackets, and A/C and heat plumbing—grab everything you need at once! While you’re at it, pick up some specialized AN fitting tools as well.
Get your fuel and just about any other fluids where they need to go! We have fittings, valves, hose ends, and plugs in a wide assortment of sizes, materials, and finishes, plus hoses to match in materials ranging from rubber to braided stainless steel. We’ve got complete fuel line kits, transmission fluid lines, radiator hoses, clamps, brackets, and A/C and heat plumbing—grab everything you need at once! While you’re at it, pick up some specialized AN fitting tools as well.
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Summit Racing™ AN Flare Caps
Summit Racing™ AN flare caps prevent dirt and debris from entering externally threaded hose fittings and adapters. Features include the ability to seal automotive-type fluids, lightweight aluminum construction, and a great looking anodized or plated finish.
( 88 )
$2.99
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$8.99
Rhodes Race Cars Billet Aluminum Water Tank Caps
Rhodes Race Cars billet aluminum water tank caps are made specifically to support today's high horsepower turbo/supercharged vehicles with air-to-water intercooled systems. These billet tank caps are available in a variety of configurations and finishes, and come complete with hardware and O-ring for a watertight seal. No need to fight getting ice into your intercooler tank again! With a Rhodes billet aluminum water tank cap it's no longer a problem at all. Features, specs and parts included: * Billet aluminum construction * Natural or black anodized finish, with Rhodes Race Cars logo * Special thread-profile to help prevent cross threading * Ultra-lightweight flush mount design with O-ring seal * Includes necessary mounting hardware for bolt-on installation * Easy turn fill caps are available many sizes and mounting configurations to fit almost any application
( 2 )
$124.95
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$149.95
Allstar Performance AN Cap Fittings
Allstar Performance AN cap fittings are available in plastic or aluminum—designed to fit 37 degree flared fittings. They keep debris out of lines and hoses, as well as the internal components of fuel pumps, dry sump pumps, and pressure regulators while in storage. Order the size and quantity needed for your application.
( 9 )
$3.99
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$46.99
Dorman Cooling Bypass Caps
Dorman cooling bypass caps are perfect for sealing your vehicle's cooling system components. Available in several different sizes, depending on your needs, these Dorman cooling bypass caps are sure to keep coolant contained in your engine.
( 22 )
$4.99
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$7.99
Allstar Performance Cap and Plug Kits
When it comes to fittings and plumbing supplies, Allstar Performance has you covered with AN cap and plug kits. They are available in plastic or aluminum. Each kit includes 5 of each size (-3 to -16).
( 13 )
$9.79
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$25.99
Earl's Performance AN Caps
These Earl's Performance AN caps prevent dirt and debris from entering externally threaded hose fittings and adapters. Designed to seal automotive-type fluids, they're manufactured from aluminum and feature an attractive blue anodized finish for a great appearance.
( 41 )
$10.02
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$17.21
Speedflow Flare Caps
Speedflow offers flare caps in a variety of materials and sizes. If you have a male AN fitting you need to block off, choose from a full range of aluminum AN flare caps to securely cover the fitting. The caps are a one-piece design, with twin sealing thanks to the AN flare and also a nitrile O-ring that snugly surrounds the flare O.D. to give a secondary fail-safe. The top-quality 6061-T6 fittings are anodized in either standard black or blue—and available in sizes -3 through -20. Speedflow also offers plastic caps as dust caps; these are designed just to block off your fittings when you want to store them or block them off during maintenance. Plastic caps will not hold pressure like the aluminum fittings.
Not Yet Reviewed
$0.50
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$21.17
Moroso Weld-On Filler Cap Kits
Moroso weld-on filler cap kits are universal to "fill" many needs. They can be used on power steering tanks, radiator overflow tanks, rear-ends, and valve covers—as well as other locations to replenish fluid or to serve as inspection ports. These kits include either a steel or aluminum weld-in bung with O-ring for leak-free sealing, and an aluminum cap with the Moroso logo (plain cap also available).
( 9 )
$42.89
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$49.99
Allstar Performance Fill Plug Kits
Allstar Performance fill plug kits enable you to put a fill plug where you need it. They include an aluminum or steel bung for use as an inspection plug or filler plug, plus an easy-grip cap with an O-ring for a positive seal. The kits are available with a small 1 3/8 in. opening or a large 3 in. diameter opening. These weld-on or bolt-on fill cap kits are available in a variety of styles and finishes.
( 18 )
$29.99
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$110.99
Fragola Performance Systems Flare Caps
Whether you need bulkheads, tees, unions, reducers, swivels, couplers, or elbows to complete your plumbing job, look no further than Fragola for the finest fittings and adapters available. To the people at Fragola, engineering has great value, and perfecting their hose ends and fittings is serious business. Fragola Performance Systems flare caps are manufactured from aerospace-quality aluminum to exacting standards for a secure connection and then anodized for added durability. These American-made flare caps are available in varying sizes to fit nearly any application. Plumb with precision fittings from Fragola Performance Systems.
( 54 )
$2.99
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$18.99
Meziere Replacement Fill Caps
Meziere offers replacement caps for their weld-in cap and bung assemblies. These threaded caps are machined from 6061 billet aluminum and include an O-ring for leak-free sealing. The outer edge is diamond-knurled for easy grip.
( 1 )
$17.33
Russell AN Flare Caps
Russell AN flare caps prevent dirt and debris from entering externally threaded hose fittings and adapters. They are available in molded red plastic, anodized aluminum, and aluminum Endura nickel plated finishes. Protect your AN fittings by using one of the Russell AN flare caps.
( 25 )
$8.95
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$17.95
Russell Plastic AN Caps
Russell plastic AN caps are designed to prevent leaks after disassembly. They are designed for temporary use only, and must be removed before vehicle operation.
( 1 )
$7.95
Meziere Weld-In Cap and Bung Assemblies
Meziere weld-in cap and bung assemblies can be used in a variety of fabrication projects—such as when constructing fuel tanks or installing filler/inspection caps on differentials or valve covers. The sets feature machined 6061 aluminum caps with O-rings in several different styles and sizes—mated to machined bungs of 6061 aluminum, 4130 steel, or 303 stainless steel. Meziere weld-in cap and bung assemblies are available in styles to suit your many uses.
( 28 )
$24.23
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$40.56
Fragola Performance Systems Caps
Working on your ride probably will at some point mean disconnecting and reconnecting lines, hoses, and the like. Cap off those disconnected lines with Fragola Performance Systems caps. These blue threaded plastic pieces go on easily and stay put to protect AN threads when hose ends are removed, while keeping dirt and grit from getting in and fluids from leaking out. Fragola Performance Systems caps are available in several sizes to fit your needs.
( 2 )
$5.99
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$12.99
Vibrant Performance AN Flare Caps
These Vibrant Performance AN flare caps prevent dirt and debris from entering externally threaded hose fittings and adapters. They are manufactured from durable aluminum and then anodized black for maximum protection.
( 10 )
$5.50
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$15.29
Boost Products USA Silicone Coolant Caps
Boost Products USA silicone coolant caps are reinforced with three textile layers to be extreme pressure-resistant and also to vacuum in your boost system. They are suitable for blanking of your intercooler or radiator pipes/tubes, intake systems, water lines, or similar uses. They are also ideal for use when an engine and/or auxiliary parts have been removed and been standing for a long time; corrosion is slowed down by closing open connections on the engine and parts. Boost silicone coolant end caps can withstand up to 5 Bar and temperatures up to 428 degrees F (220 degrees C). They are available in several inner diameters and come with a small subtle Boost Products logo which proofs the silicone hoses' quality.
( 2 )
$16.32
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$25.51
Rhodes Race Cars Fill Caps
Rhodes Race Cars fill caps with a weld-in bung can be used in a wide variety of applications, from valve covers to rear-end housings. They are made from 6061 T-6 aluminum and are CNC-machined to exact tolerances. They feature an O-ring seal and coarse threads for ease of starting when installing the cap. They are available in a variety of sizes and anodized colors, along with aluminum or steel weld-in bungs.
Not Yet Reviewed
$29.95
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$32.95
Allstar Performance Fill Plug Caps
Allstar Performance offers high-quality, reasonably priced parts, such as these fill plug caps. They're available in a variety of styles and finishes to suit your specific project needs.
Not Yet Reviewed
$20.99
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$41.99
Peterson Fluid Systems Tank Cap Assemblies
Peterson Fluid Systems offer all of their tank caps and filler necks as assemblies to use on your own and complete your projects. Steel caps are cadmium plated for corrosion resistance and come with an aluminum filler neck. The steel caps also feature a bayonet-style lock. The billet aluminum caps come in 1 7/16 in. and 3 in. sizes, and they are anodized for durability.
Not Yet Reviewed
$50.99
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$103.99
Redhorse Performance 929 Series AN Flare Caps
Redhorse Performance 929 Series AN flare caps prevent dirt and debris from entering externally threaded hose fittings and adapters. The AN flare cap fittings have the ability to seal automotive-type fluids, feature aluminum construction, and come in a wide range of sizes and anodized finishes—individually or in pairs. Select the AN flare caps for your application needs.
Not Yet Reviewed
$7.11
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$20.25
S.U.R.&R. Brake Bleeder Screw Caps
You keep your bleeders capped to prevent water, rust, and mud from accumulating in the screws. S.U.R.&R. brake bleeder screw caps are manufactured from durable rubber to ensure that your screws stay clean and dry.
( 2 )
$5.99
Philadelphia Racing Products Flare Caps
When servicing AN hose assemblies, use Philadelphia Racing Products flare caps to seal off hose ends. These lightweight aluminum caps prevent leaks and spills—and are also handy for sealing ports and fittings. The caps are bathed in a black anodized finish for corrosion protection. Philadelphia Racing makes plumbing any fuel system easier! Order the flare cap sizes needed for your application.
( 1 )
$4.99
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$7.99
PSC Cap Fittings
PSC cap fittings give you multiple options when building your steering system. Constructed from corrosion-resistant, high-strength materials, these cap fittings finish-off your plumbing project exactly how you need it. Complete your project correctly with PSC cap fittings.
Not Yet Reviewed
$1.00
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$5.00
