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Summit Racing™ oxygen sensor extension harnesses are a must with full-length headers and other specific applications. These extension harness sets feature a direct plug-in design to eliminate the cutting and lengthening of oxygen sensor wires, along with high-temperature sleeving to help protect the wires from heat. They're available in a variety of plug styles, harness lengths, and other options. Order the pair recommended for your vehicle.
( 13 )
$50.99
Whether you want to add a second O2 sensor to your FiTech fuel injection system or need to replace a damaged harness, FiTech oxygen sensor sub harnesses get the job done. Repair or customize your vehicle's sensors the proper way with the FiTech oxygen sensor sub harness designed for your application.
( 2 )
$58.00
There's nothing worse than having the main portion of your build finished, the engine built and ready to be swapped into its new home, only to realize you didn't think about hooking those pesky oxygen sensors up, and now you need an extended harness. ICT Billet comes to the rescue again with their oxygen sensor extension harnesses. Offered for specific engine sensors, and in multiple lengths, ICT Billet harnesses make sure your project is finished on time.
( 2 )
$43.99
Edelbrock Pro-Flo 4 Plus EFI self-learning engine management system harnesses are offered to support your specific configuration. With an eye toward making your hot rod transplant simple and successful, Edelbrock has created several add-on harnesses. They include LS drive-by-wire, knock sensor, a second oxygen sensor, and 2- or 4-wire LS alternators to radiator fan relay harnesses to complete and/or expand your base Chevy LS, Mopar Gen III Hemi, and Ford Coyote Pro-Flo 4 Plus EFI kits.
( 2 )
$33.95
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$149.95
ICT Billet has your LS swap covered with ICT Billet wiring pigtails. Options are available for standard and extended lengths on a multitude of applications. All designed to work with OE sensors for the easiest installation possible!
( 10 )
$22.99
FAST wiring connectors are available in a variety of connector types for countless applications. They are made of the same high-quality materials you have come to expect from FAST—and are designed just as your factory OE wiring connectors for a proper fit and function. For replacement, new wiring, or upgrade projects, FAST provides you with the right connections.
( 1 )
$30.95
High-quality, direct-replacement Standard Motor wiring connectors help eliminate the need for a harness by letting you swap only the damaged connector for a cost-effective repair solution. The terminals feature high-grade materials like copper alloy, brass, and phosphor bronze. Together they provide the connectors with prolonged life and superior performance in harsh environments for each specific application. Standard Motor electrical connectors are 100 percent tested for the proper mechanical and electrical fit, form, and function for your vehicle.
( 139 )
$4.99
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$80.99
Standard Motor Products offers many high-quality pigtails and sockets for nearly every electrical job. Utilizing high-grade materials to ensure peak conductivity and perfect connections, every electrical connector is accurate in OE fit, form and function to provide a reliable connection every time. With industry leading enterprise, when original equipment fails, Standard Motors parts are designed and engineered to fix the inherent failure issues. Order the electrical connector to fit your needs.
Not Yet Reviewed
$72.99
Painless Performance GM Gen IV Vortec truck engine wiring harnesses are designed to operate any Chevrolet Gen IV engine coupled with a 4L65E, 4L70E, 4L80E, or 4L85E automatic transmission. They cannot be used with a 4L60E transmission because it's missing the input speed sensor required by the transmission control module. The harnesses support engines with or without cylinder deactivation and/or variable valve timing. They feature an integrated weatherproof fuse block. Painless Performance GM Gen IV Vortec truck engine wiring harnesses have 10 fused power circuits, including injectors, ignition coils, oxygen sensors, ECM ignition, MAF/VLOM, and fuel pump. They also use an integrated 30 amp fuel pump, 40 amp cooling fan relays, and two ignition relays. The harnesses have an extra 4 ft. of length between the ECM connections and the main engine breakout.
( 1 )
$840.99
FuelTech offers a variety of complete and ready-to-install harnesses as well as unterminated harnesses for the various FuelTech ECUs and accessories like FTSPARK and Peak & Hold systems. FuelTech WB-O2 Nano unterminated harnesses are ready to wire your wideband oxygen sensor display and conditioner. They are offered in 3 ft., 6.5 ft. (recommended size for most applications), and 15 ft. lengths. Easily install a Nano with the help of FuelTech's unterminated harnesses.
Not Yet Reviewed
$65.00
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$69.00
Holley wiring harness connectors provide one-stop shopping for your wiring needs. Along with their extensive line of wiring components, Holley offers a tremendous assortment of genuine OEM connectors to hook up your wiring project properly, securely, and completely. They're available individually and in packs of 10—with most including pins, seals, and TPA. Finish wiring your Holley-powered machine with their quality wiring harness connectors.
( 9 )
$9.06
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$39.46
The average vehicle today has hundreds of wiring connectors. ACDelco connectors are available for everything needed, from antennas to trailer wiring, as well as an array of multi-purpose connectors to maintain the optimal operation of your vehicle. Choose GM-recommended replacement wiring connectors to ensure the same performance, durability, and service life you've come to expect from General Motors products.
( 35 )
$28.99
Dozens of sensors, lights, motors, and switches—nearly every accessory on your vehicle is powered through a wiring circuit. When any of those electrical components begin to fail, Motorcraft wiring connectors can help restore proper operation. For repairs or replacement on Ford, Lincoln, and Mercury vehicles, in particular, Motorcraft carries a full line of wiring pigtails and connectors for countless applications, using technologies that exactly replicate the OEM products. Depend on Motorcraft for precision electrical parts with the fit, form, and function you need!
( 8 )
$43.99
Dorman wiring connectors are designed to facilitate the flow of electrical current over a broad range of applications. The small components are available in a variety of styles to fit your specific application or universal fit needs. Choose Dorman wiring connectors for a reliable connection every time.
( 64 )
$50.99
Are you installing a Painless Performance fuel injection harness and want to keep all of your emissions devices intact? The solution is to install one of these Painless Performance emissions wiring harnesses. These harnesses activate the AIR port solenoid control, AIR diverter solenoid, and canister purge solenoid to meet local emissions standards.
Not Yet Reviewed
$98.99
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