Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
Fittings & Hoses
Availability
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.
Showing In Stock Items. Show All 288 Items.
Summit Racing™ LS Oil Galley Barbell Plug Kit
Summit Racing™ LS oil galley barbell plug kits give you a cool, affordable way to improve your LS engine's oiling system. They include the rear "barbell" or "dogbone" which has a smaller stem diameter than the factory plastic unit to improve flow to the filter, a solid plug to delete the filter bypass in the oil pan, and a step washer and bolt to support the unsupported side of the oil pump pickup tube retainer.
( 6 )
$24.99
Tanks Inc. Fuel Line Kits for GM LS
Tanks Inc. offers fuel line kits for GM LS that include the hose and fittings needed to hook up one of Tanks Inc. fuel pumps to an LS engine swap setup. They're designed for LS engine swaps using a single fuel inlet fitting for the fuel source. Tanks Inc. GM LS fuel line kits include: * Fuel pressure regulator/fuel filter combination * 25 ft. of -6 AN twist-lock fuel line * Six straight -6 AN straight twist-lock fittings * Two 1/4 in. NPT to -6 AN straight fittings * Three 3/8 in. female quick-disconnect to -6 AN male fittings * 5/16 in. female quick-disconnect to -6 AN male fitting
( 27 )
$202.99
—
$204.99
Trick Flow® Engine Steam Line Fittings for GM LS
Today, life is a bit easier! Trick Flow® engine steam line fittings for GM LS are available to upgrade the factory steam tubes of your modified LS-powered cars and trucks to update your race car plumbing system. The fittings are black anodized billet aluminum and attach to the corners of your GM LS cylinder heads. They feature -4 AN male threads and include O-rings and stainless steel bolts. Upgrade to easy with Trick Flow® engine steam line fittings for GM LS.
( 13 )
$14.99
—
$18.99
Trick Flow® Engine Steam Line Hoses for GM LS
Trick Flow® engine steam line hoses for GM LS service your steam tube system. Whether you're plumbing just the front of your heads or all four corners, these hose kits will replace your old with new performance. Choose Trick Flow® braided black nylon covered rubber hose or braided stainless steel covered rubber hose.
( 18 )
$40.99
—
$72.99
Tanks Inc. Dual Fuel Tank Line Kit for GM LS
The dual fuel tank line kits for GM LS from Tanks Inc. includes 25 ft. of line and all the fittings that you need for your LS engine swap using our fuel pumps and two tanks. The kits are designed for LS engines that have a single fuel inlet fitting. The regulators in this Tanks Inc. dual fuel tank line kit are not recommended with fuel pumps that flow over 255 lph. Kit includes: * (2) Fuel filter/fuel regulators * (2) In-Line check valves * (2) 6AN coupler fittings * (1) 6AN Male Y-fitting * (4) 1/4 in. NPT to -6AN adapter fitting (fuel pump pickup and return line fittings) * (14) Russel straight -6AN straight Twist-Lok fittings * (2) Russell 3/8 in. Male Quick Disconnect to -6AN Male fittings—fuel feed from regulator to engine fitting * (3) Russell 3/8 in. Female Quick Disconnect to -6AN Male fittings—fuel regulator feed from pump and fuel rail fitting * (2) Russel 5/16 in. Female Quick Disconnect to -6AN Male fittings—fuel regulator return line fitting * 25 ft. of -6AN black push lock fuel hose
Not Yet Reviewed
$438.99
ICT Billet LS Swap Radiator Hoses
ICT Billet LS swap radiator hoses can make your swap easier. Offered as upper or lower individually or in kits with one of each, the hoses are precision designed specifically to fit your LS-swapped vehicle. They are precision formed to fit factory inlet/outlet locations, are compatible with most LS-style water pumps, and are a 1/2 in. longer in length for trimming, if necessary. Select the hose or hoses designed for your vehicle.
Not Yet Reviewed
$59.99
—
$119.99
On Sale
Earl's Performance LS Steam Vent Adapters
The original GM brazed vent tube manifold does not take into consideration the aftermarket intakes and accessories we put on our performance vehicles. Replace the rigid hard lines with Earl's Performance LS steam vent adapters. These adjustable outlets are O-ring seal adapters designed to convert to -3 or -4 AN plumbing. Earl's steam tube adapters are the most adjustable and lowest profile available. These adapters look as nice as they are installation-friendly. There are several kits available to allow for the optimal routing on your application, including dual outlet options, which eliminate the need for a Tee adapter.
( 18 )
$76.35
$43.03
—
$84.55
Summit Racing™ Pro LS Heater Hose Kits
Summit Racing™ Pro LS heater hose kits are ideal choices for neatly routing heater hoses when LS swapping your ride. These heater hose kits include everything needed to route the heater hoses above the headers and back to the firewall, providing a clean, professional look under the hood. Kit includes: * Hose brackets and mounts * Stainless hardware for brackets * 5 ft. long heater hoses 5/8 in. and 3/4 in. * Heat shrink hose clamps
Not Yet Reviewed
$184.11
AutoMeter GM LS Engine Gauge Installation Kits
AutoMeter engine gauge installation kits for GM LS engines feature specialized components to ease the introduction of an LS engine into your vehicle. These kits include a full-color guide that details the use of the included metric adapter fittings, short depth water temperature sensor, and tachometer resistor, as well as the installation procedures for other commonly monitored parameters. Each kit includes: * 12mm x 1.5 to 1/8 in. NPT adapter * 16mm x 1.5 to 1/8 in. NPT adapter * Low-profile electric temperature sender * 10K 1/2 watt resistor (tach function)
( 23 )
$47.99
Summit Racing™ Pro LS Heater Hose Brackets
Summit Racing™ Pro LS heater hose brackets assist with the proper routing of your heater hoses for your LS swap. Featuring billet aluminum construction, these kits provide the brackets, mounts, and hardware.
Not Yet Reviewed
$79.99
Summit Racing™ LS Oil Pressure Adapter Fittings
Summit Racing™ offers a wide variety of fittings, including these LS oil pressure adapters. Machined from aluminum, the female NPT to male metric thread fittings are available in common sizes to transition between different line diameters.
Not Yet Reviewed
$9.99
Trick Flow® Engine Coolant Plugs for GM LS
Trick Flow® engine coolant plugs for GM LS are for coolant holes on exhaust faces. They are zinc plated steel with a hex head/13mm wrench and include an aluminum sealing washer. These Trick Flow® coolant plugs fit all LS cylinder heads.
( 3 )
$14.99
Trick Flow® Engine Steam Line 4-Corner Plumbing Kits for GM LS
Plumb all four corners of your heads with Trick Flow® engine steam line plumbing kits for GM LS. It's an easy upgrade from factory steam tubes with Trick Flow®. Your 4-corner plumbing kits include: * Two 2 ft. 1/4 in. black rubber hoses * Twelve 9/16 in. hose clamps * Four 4 AN 90 degree fittings * Stainless steel tee barb fitting * Stainless steel cross barb fitting
( 4 )
$62.99
Fragola Performance Systems LS Oil Pressure Gauge Adapter Fittings
Fragola LS oil pressure gauge adapter fittings are ideal for the installation of aftermarket oil pressure gauges on GM LS engine swaps. The temperature adapter fittings screw directly into the oil passage located on the rear of the block, and options are available to fit most aftermarket sending units or mechanical gauge hoses. Fragola LS oil pressure gauge adapter fittings are precisely engineered to ensure ultimate efficiency, absolute quality, great durability, and solid workmanship—making these fittings perfect for the job.
( 2 )
$15.99
—
$18.99
ICT Billet LS Engine Block Oil Passage Galley Plugs
ICT Billet LS engine block oil passage galley plugs are OEM replacements. Each steel plug is zinc coated for corrosion resistance and comes pre-applied with thread sealant. Fill the various oil passage outlets in your engine block with ICT galley plugs.
( 2 )
$19.99
ICT Billet LS Heater Core Feed Fittings
ICT Billet replaces your factory LS water pump fittings for the heater core. Made from aerospace grade billet aluminum, they are compatible with all GM LS Series water pumps.
( 1 )
$18.99
Trick Flow® Engine Steam Line Front Plumbing Kits for GM LS
Plumb just the front of your heads with Trick Flow® engine steam line plumbing kits for GM LS. It's an easy upgrade from factory steam tubes. Your engine front-only plumbing kits include: * 2 ft. 1/4 in. black rubber hose * Six 1/4 in. hose clamps * Two 4 AN 90 degree fittings * Stainless steel tee barb fitting
Not Yet Reviewed
$42.99
ICT Billet LS Gen IV Camshaft Sensor Delete Plugs
ICT Billet LS Gen IV camshaft sensor delete plugs are designed for making a camshaft swap simple. Built from aerospace grade billet aluminum and packaged with a bolt and mounting bracket, ICT's sensor delete plugs offer ease and reliability.
( 1 )
$58.99
Intellitronix Engine Swap Gauge Adapter Fittings for GM LS Engine
Make your GM LS engine "swap ready" with an Intellitronix engine swap kit that comes with the required brass gauge adapter fittings needed for doing it. Kit components: * One bushing 1/8 in. NPT to 12mm for water temperature sender * One bushing 1/8 in. NPT to 16mm for oil pressure sender * One resistor for tachometer connection
( 7 )
$20.69
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.
( 17 )
$15.79
Sikky Manufacturing Universal LS Swap Heater Hose Kits
Sikky Manufacturing universal LS swap heater hose kits provide specialized silicone hoses and fittings to solve clearance issues when installing an LS engine in various cars, especially imports. They route heater core lines neatly behind the intake manifold with tight 90-degree bends, using 5/8 in. O.D. fittings and heavy-duty clamps for a clean, reliable coolant connection. The kits simplify LS swaps by eliminating guesswork, offering maximum clearance for import and hot rod builds where factory heater hose routing conflicts with the LS engine's intake. Additional details: * 5-ply reinforced, tight-radius 90-degree silicone hoses for excellent flexibility and clearance * Heavy-duty plastic 90-degree barb fittings that connect to standard 5/8 in. O.D. heater core ports * High-quality hose clamps included * Moves heater core lines up and behind the intake manifold for better firewall and engine clearance * Who needs the kit?: Anyone performing an LS engine swap into vehicles like E30s, FRS, RX7s, hot rods, or off-road vehicles where space behind the intake is tight Benefits: * Maximum clearance: Solves fitment problems with tight cylinder heads and intake manifolds * Simplified installation: Pre-designed components reduce the need for custom fabrication, making coolant plumbing easier * Quality construction: Durable materials ensure longevity in demanding swap applications
Not Yet Reviewed
$66.49
On Sale
New Vintage USA LS Temperature Sender Installation Kits
Direct from Detroit, New Vintage USA LS temperature sender installation kits allow standard 1/8 in.-27 NPT threaded senders to be installed in the standard LS ports. The included M12 bushings are handmade from brass hex stock and enable you to use full-length temperature senders—there is no need for special "short" units. A pre-wired step-up resistor for tachometers reading a tach signal from the PCM is also included. Choose New Vintage USA LS install kits for accuracy, proper fitment, and American craftsmanship.
( 2 )
$65.99
$59.39
Meziere LS-X Water Pump AN to UNF Fittings
Meziere LS-X water pump AN to UNF fittings are specifically designed for use with Meziere's LS-X water pumps. They are quality aluminum fittings featuring an anodized finish for durability and a clean look.
( 2 )
$24.30
—
$38.80
ICT Billet Engine Block Oil Restrictor Galley Plug Passage Barbells
ICT oil galley barbells have a "weighty" job to perform. Often overlooked, but very much needed, these oil diverter valves fit in the back of your LS engine block and are essential to the oil pressure circuit. Little things may cause a big headache; for your build, replace the plastic barbell with a new one from ICT Billet.
( 1 )
$35.99
