Gearhead Gifts - Find the Perfect Gift for the Gearhead on Your List!

Gearhead Gifts - Find the Perfect Gift
for the Gearhead on Your List!

It's the Season for Savings - Shop Holiday Deals Now!

Selected Filters


Loading...

Availability


Fittings & Plugs

Part Groups

Results 1 - 24 of 188

On Sale

Summit Racing™ Flex Fuel Sensor Bypass/GM Sensor and Pigtail Combo Kits

Summit Racing™ Flex Fuel sensor bypass/GM sensor and pigtail combo kits allow you to use the GM OEM Flex Fuel sensor in a high-volume, high-flow fuel system with lines up to -10 AN. The bypass allows a portion of the fuel to run through the sensor to measure the ethanol content for your ECM. The rest of the fuel flows around, or parallel to, the sensor, avoiding a restriction in the feed line. Our combo kits include a GM Flex Fuel sensor and pigtail for GM LS Series engines.

Not Yet Reviewed

$217.11


$200.97

On Sale

Summit Racing™ Flex Fuel Sensor Bypass

The Summit Racing™ Flex Fuel Sensor Bypass lets you use a factory-type flex fuel sensor in a high-volume, high-flow fuel system with lines up to -10 AN. The bypass allows a portion of the fuel to run through the sensor to measure the ethanol content for your ECM--and then allows the rest to flow around or parallel to the sensor to avoid a restriction in the feed line. Made from billet aluminum and hard anodized black, the bypass kits come with -6, -8,and -10 AN adapter fittings and also include methanol-resistant O-rings.

1.0 out of 5 stars ( 1 )

$139.99


$109.99

On Sale

ICT Billet AN to Straight Thread O-Ring (ORB) Adapter Fittings

ICT Billet AN to straight thread O-ring (ORB) adapter fittings connect AN threaded flexible hoses or rigid metal tubing to straight thread O-ring boss fittings. ORB fittings are recommended for optimal leakage control in medium and high-pressure fluid systems. The seal takes place by compressing the O-ring; the threads hold the connection mechanically. ICT Billet adapter fittings are available in a variety of sizes and finishes.

4.26 out of 5 stars ( 31 )

$11.99

$12.99


$10.79

$11.69

On Sale

Holley Air Conditioner Compressor Manifolds

Holley offers air conditioner compressor manifolds in a variety of styles and finishes. These replacement line adapters are machined from aluminum or copper and will facilitate your A/C compressor hookup. Mounting hardware is included. Applications include vehicles with a GM LS engine.

4.88 out of 5 stars ( 8 )

$24.14

$42.44


$21.73

$23.34

On Sale

Scott Drake Oil Pressure Sending Extensions

Scott Drake oil pressure sending extensions are offered in a choice of sizes and finishes. These hex shaped extensions are made from machined metal and are crafted for durability and quality.

4.77 out of 5 stars ( 53 )

$35.65

$40.41


$32.09

$36.37

On Sale

Holley Fuel Fittings

Holley has fittings to adapt different sized fuel lines to bare Holley fuel bowls, as well as hose and banjo fittings for special applications.

4.64 out of 5 stars ( 106 )

$18.99

$49.95


$17.09

$44.95

On Sale

Mishimoto 6.7L Cummins Top Heater Hose Upgrade Fittings

Elevate your RAM's cooling system with Mishimoto 6.7L Cummins top heater hose upgrade. Specifically designed to replace the leak-prone heater hose quick-disconnect at the engine, these upgrades feature an O-ring-less, -10AN connection for improved reliability. With easy installation and a perfect fit, Mishimoto top heater hose fittings are must-haves for Cummins enthusiasts looking to enhance their cooling system's durability. You can say goodbye to coolant leaks and hello to seamless coolant flow, thanks to Mishimoto top heater hose upgrades. Includes: * Stainless steel AN adapter * -10AN push lock fitting * Worm gear clamp * Mishimoto Lifetime Warranty

5.0 out of 5 stars ( 1 )

$110.95


$99.86

On Sale

Holley MAP Sensor Port Plugs

Holley MAP sensor port plugs are milled from billet aluminum for strength, powdercoated for corrosion resistance, and include an O-ring for a tight seal. They're designed to eliminate LS3-style MAP sensors and work with most intake manifolds.

5.0 out of 5 stars ( 5 )

$36.14


$32.53

On Sale

Scott Drake Upper Control Arm Grease Fitting Kits

Scott Drake upper control arm grease fitting kits can help to quiet front end noises and ensure that all threads on the shaft remain lubed. The 90 degree grease fittings are designed for easier installation, as they don't run into the shock tower. These zerk fittings help extend the life of your control arms, since they can now be greased easily. They're available as a set of fittings or in a kit with extensions and installation tool included. Eliminate squeaky upper control arms with help from Scott Drake grease fittings.

4.75 out of 5 stars ( 12 )

$23.75


$21.38

On Sale

Holley Manifold Plug and Fitting Kits

Holley manifold plug and fitting kits allow two different styles of connections within one unit. They are offered to service your mid-mount accessory drive LT/LS, BBC, and SBC cooling manifolds. These genuine Holley fittings are constructed from aluminum and feature a chrome finish for longevity.

4.5 out of 5 stars ( 2 )

$43.69


$39.32

On Sale

Holley Fuel Bowl Fittings

These Holley fuel bowl fittings are an exact fit to ensure a perfect seal. An O-ring is included, so you won't have a fuel leak again.

4.87 out of 5 stars ( 38 )

$38.13


$34.32

On Sale

Holley EGT Bungs

Holley EGT bungs are quality replacement service parts designed exclusively for use with Holley's 8-Channel Exhaust Gas Temperature Monitoring kit (sold separately). Made from 316 stainless steel, these weldment bung fittings feature a built-in step—which keeps the bung held in place during the welding process, ensuring a perfect weld. They're sold individually or in multiple-piece count sets.

Not Yet Reviewed

$184.95


$166.45

On Sale

Flowtech Weld-In O2 Sensor Bungs

Flowtech offers these weld-in O2 sensor bungs for custom installations. These high-quality emissions accessories work with your other Flowtech accessories to make your header installation a success.

5.0 out of 5 stars ( 6 )

$21.95


$19.76

On Sale

Mishimoto Water Temperature Sensor Adapters

Mishimoto offers special adapters that enable you to place a water temperature sensor directly in the path of the water to the radiator, ensuring the most accurate reading possible. These coupler fittings are manufactured from high-quality aluminum with a black, gold, or silver anodized finish. They include a 1/8 in. NPT gauge port and are available in a variety of hose barb sizes and worm-style clamps for easy attachment.

4.32 out of 5 stars ( 28 )

$32.95


$29.66

On Sale

Fleece Performance Hose Barb to AN Fittings

When you need a secure, leak-free connection to your hose, Fleece Performance hose barb to AN fittings are the way to go. The hose barb to AN fittings allow you to slide the proper size hose over the barb end and thread the AN portion into the appropriate fitting. These adapter fittings are manufactured from high-quality aluminum, and black anodized for added durability, and come in a variety of sizes to meet your application needs.

Not Yet Reviewed

$6.99

$18.99


$5.94

$16.14

On Sale

Fragola Performance Systems Swivels

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. To the people at Fragola, engineering has great value, and perfecting their hose ends and fittings is serious business. Fragola Performance Systems swivel adapter fittings are manufactured from aerospace-quality aluminum to exacting standards for tight, leak-free connections and then anodized for added durability. These American-made swivel adapter fittings are available in varying sizes to fit nearly any application. Plumb with precision fittings from Fragola Performance Systems.

4.51 out of 5 stars ( 53 )

$7.99

$27.99


$7.19

$25.19

On Sale

Fleece Performance Fuel Injector Return Line Repair Fittings

Fleece Performance offers fuel injector return line repair fittings for a variety of applications. For instance, the plastic factory injector return fitting on the 2011-and-up 6.7L Powerstroke engines is susceptible to breakage from heat, vibration, rough handling, and frequent disconnections for fuel filter maintenance. Upgrade this fitting and eliminate the risk of a broken fuel line with Fleece's heavy-duty billet aluminum injector return fitting. Featuring a dual O-ring internal design and serviceable barb fitting, these injector return fittings will ensure you're not left stranded with a broken, non-repairable fuel line. Additional details: * Heavy-duty, machined billet aluminum housing * Dual O-ring internal design for increased sealing * Serviceable billet aluminum barb fitting * Easy to install and remove * Sold individually or in a set of 5 * Application notes: Kits are designed to work with both OEM and aftermarket underhood fuel filter assemblies

5.0 out of 5 stars ( 2 )

$64.99

$349.95


$55.24

$297.46

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.

4.67 out of 5 stars ( 18 )

$76.35

$82.45


$41.99

$45.35

On Sale

Trail-Gear Power Steering Fittings

Trail-Gear power steering fittings can handle the pressure. Be it low or high, TG has an offering of fittings to fit your specialty and OEM needs. From adapters that join your high-pressure steering hose to your IFS steering box—to elbow low-pressure barbed fittings, Trail-Gear will get you connected. Order the model needed for your application.

4.5 out of 5 stars ( 8 )

$6.99

$19.99


$5.94

$16.99

On Sale

Fragola Performance Systems Reusable PTFE Hose Ends

When you're plumbing brake lines, gauges, power steering, or air conditioning with durable PTFE stainless braided hose from Fragola, you need hose ends that will do the job just as well. These reusable hose ends feature a miniature "olive" that retains the hose inside of the fitting. By replacing the olive, Fragola Performance Systems PTFE hose ends can be used over and over again. PTFE hose ends are available in zinc coated steel and anodized aluminum in a surplus of sizes, styles, and angles to fit just about any application. Plumb with the best--Fragola Performance Systems PTFE hose ends.

4.24 out of 5 stars ( 21 )

$10.99

$56.99


$9.89

$51.29

On Sale

Nitrous Outlet Quick-Release NHRA Sockets

Are you looking for a fast, easy way to change or fill your nitrous bottles? Nitrous Outlet offers a simple solution with their newly designed quick-release NHRA sockets. They will hold up under pressure and will make switching bottles painless and fast! These lightweight quick-release sockets are CNC-machined from billet aluminum with a black anodized finish. Make Nitrous Outlet your #1 source for everything nitrous!

5.0 out of 5 stars ( 1 )

$99.99

$119.99


$84.99

$101.99

On Sale

Mishimoto Add-On Bungs

Adding ancillary ports to your intercooler or engine cooling system can be a challenge, especially if you don't have access to metal fabrication equipment. Recognizing the need for an easy-to-install 1/8 in. NPT adapter bung for rubber or silicone couplers, Mishimoto CNC-machined their add-on bungs from 6061 aluminum with space for a durable silicone O-ring to ensure a leak-free seal with both air and liquid passageways. They feature a durable black anodized finish, ensuring optimal resistance against corrosion, and can be installed in minutes to accept any 1/8 in. NPT accessory, such as injection nozzles, sending units, and sensors. You can add ancillary ports with professional results, thanks to Mishimoto add-on bungs.

Not Yet Reviewed

$24.95


$22.46

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.

2.5 out of 5 stars ( 2 )

$65.99


$59.39

On Sale

Mishimoto AN to Hose Barb Adapter Fittings

Mishimoto AN to hose barb adapter fittings are designed to get your hose connected when converting from AN sizes. These fittings are machined from durable aluminum and available in different sizes to fit your specific size hose. Get connected and get cooled with help from Mishimoto!

Not Yet Reviewed

$27.95

$53.95


$25.16

$48.56

Modal Header