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Wiring Specialties Pro Series coil pack harnesses are designed for a direct drop-in installation. These new nylon loomed harnesses will look and perform flawlessly. Select the ignition coil wiring unit tailored for your year/make and engine application. Pro Series coil pack sub-harnesses feature: * Brand new construction * High-temperature nylon looming with adhesive shrink tubing * High-temperature wire (280 degrees F) * OEM connector specs (no cheap aftermarket connectors that fall apart) * Designed for a factory-like installation * OEM wiring connections and 'T' junctions—no soldered * Fully tested after production for an easy plug-and-play replacement * Turnkey engine start guarantee
( 24 )
$169.99
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
ICT Billet LS ignition coil wiring harness extensions are assembled with OEM tooling, connectors, locks, seals, and terminals. They utilize factory harness wire colors. Compatible with any GM LS engine, these extensions are great for remote locating coils under the engine for a custom look. Don't take a chance with cheap wire connectors that use poor-quality components and have conductivity issues. Choose ICT Billet LS coil wire harness extension length and model recommended for your application.
( 2 )
$43.99
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$105.99
Holley LS extended-length main engine harnesses are 22 in. longer than previous harnesses. Designed to fit most 24x and 58x LS engines from 1997-2012, they are a perfect fit for installers wanting to mount any Holley EFI ECU inside of the passenger compartment where it is away from the elements, and easy to access, such as on a roll bar or under the passenger seat. Notes: * Plug-and-play with Dominator, HP, Terminator X, and Terminator X Max ECUs * LS1/6 harness interfaces with 24x crank and 1x cam sensors * LS2/3/7 harness interfaces with 58x crank and 4x cam sensors
( 1 )
$672.95
Summit Racing™ GM flex fuel sensor harnesses are assembled with OEM tooling, OEM Delphi (connector, lock, seals, and terminals), and use OEM harness wire colors. They're compatible with 2012 and newer GM LS Series engines.
Not Yet Reviewed
$10.99
The camshaft position sensors on your engine will only work with the correct pigtail connections. Chevrolet Performance offers these pre-made pigtails to properly fit the crank position sensor or the cam position sensor on select models. Trust Chevrolet Performance for OEM wiring replacement parts and more!
( 5 )
$44.99
ACDelco GM Genuine Parts ignition switches are GM-recommended replacements for your vehicle's original components. They are multi-position switches that activate the ignition, accessory, and cranking circuits in your vehicle. These original equipment ignition switches have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.
( 8 )
$17.99
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$104.99
On Sale
You already have the wire and Holley EFI ECU connector kits have the rest of what you need to rewire your EFI installation. Fully terminate your own custom main harness with Holly EFI ECU connector kits. Features include: * Pre-terminated J1A/J1B Tyco Superseal connectors * 20 to 22 gauge pre-terminated wires * 16 to 18 gauge pre-terminated wires * Cavity plugs
( 3 )
$158.95
ICT Billet throttle body extension harnesses are assembled with OEM tooling, OEM Delphi components (connector, lock, seals, and terminals), and OEM harness wire colors. Don't take a chance with cheap wire connectors; poor quality materials can have conductivity issues that will cause your engine to run poorly and be difficult to diagnose. ICT Billet throttle body extension harnesses provide quality you can trust. Order the model recommended for your application.
( 1 )
$43.99
Painless Performance EFI harnesses are designed for the 1998-2002 LS1 mechanical throttle body engines using a 1999 and up LS1/LS6 ECM with a 4L60E/4L65E automatic or T56 manual transmission. These engines were found in 1998-2002 Camaro and Firebird. These GM LS1/LS6 harnesses will also work on 1997-2004 Throttle-By-Wire (TBW) LS1/LS6 engines which have been changed to mechanical throttle body or any 1999-2006 (4.8, 5.3, and 6.2) Vortec truck engine which has been changed to a factory or aftermarket LS1 intake manifold, mechanical throttle body, and injectors.
( 1 )
$769.98
ICT Billet LS VVT to non-VVT camshaft sensor adapters convert your VVT harness to a non-VVT sensor. These harnesses are plug-and-play and are assembled using OEM tooling with OEM Delphi connectors and terminals. Order the model recommended for your vehicle and engine application.
( 4 )
$43.99
Painless Performance benchtop flash pigtails enable you to tune or read your PCM outside the vehicle. The pigtails connect to any 12 V source and include PCM and OBDII connections. Benchtop flash your LS Series PCMs effortlessly when using Painless Performance benchtop flash pigtails. They are available for a wide range of Chevy applications from the 1990s and up.
( 2 )
$149.99
ATP Automotive provides one of the widest product offerings of automatic gear-shifting control products, including transmission wiring harnesses, for most import and domestic vehicles. ATP designs and manufactures them to meet or exceed the OEM specifications to properly control your drivetrain. Get exact-fit, no-compromise replacement parts when you order the ATP automatic transmission wiring harnesses designed for your application.
( 1 )
$36.99
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$152.99
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
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$58.99
ICT Billet sensor harness extensions make change happen. They offer a selection of pre-terminated sensor to get you plugged in properly. From engine or intake swaps, ICT Billet harnesses have you covered.
( 4 )
$32.99
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$43.99
ICT Billet camshaft position sensor adapter harnesses are used when converting from rear-block sensor to front-cover sensor. They will, for example, adapt a Gen IV LS sensor to a Gen III harness. The harnesses are made with OEM-grade TXL wire and assembled with OEM tooling and OEM Delphi (connector, lock, seals, and terminals). Order the model recommended for your application.
( 2 )
$43.99
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
LS Classic Series LS ignition coil wiring harness extensions give you an additional 48 in. of length to enable remote coil mounting. The harnesses are sold in pairs, and feature factory color-coded wires and weatherproof connectors that are designed to plug directly into the factory harnesses. Get the extra-length you need to enable your remote coil mounting, order your LS ignition coil wiring harness extension from LS Classic Series.
Not Yet Reviewed
$139.95
Holley EFI Dominator transmission harnesses provide control of your Tremec. The harnesses are terminated for VSS, reverse lockout, and reverse lights. Choose the one designed for your build.
( 1 )
$228.95
ICT Billet offers wiring harness extensions for use with many Chevrolet LS-based engine applications from 1997 and up. These connectors are available in a variety of lengths, with 2, 3, 4, 8, or 10 pins. They can help with installing camshaft sensors, alternators, throttle pedals, throttle bodies, temperature sensors, MAP sensors, EVAP solenoids, and more. Each harness extension is made from factory-style materials and specs to ensure proper connection and optimum performance.
( 2 )
$43.99
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$58.99
ICT Billet LS fuel sensor wiring harnesses are assembled with OEM tooling, OEM Delphi (connector, lock, seals, and terminals), and use OEM harness wire colors. They are compatible with 2012 and newer GM LS Series engines.
Not Yet Reviewed
$22.99
ICT Billet LS3 MAP sensor connector component kits are compatible with 2009-and newer GM LS Gen 4 Series engines - "Bosch" style sensors. They replace broken, worn-out, or missing harness connectors for the MAP sensor. Kits include connector, retainer, terminals, and seals. * Compatible with 3-wire Gen 4 LS3 "Bosch" style, bolt-down sensors * Not compatible with LS Gen 3 clip-in sensors or "Brick" style sensors
Not Yet Reviewed
$22.99
Hella relays are ideal for a wide range of automotive uses, such as auxiliary lighting, turn signals, power windows, rear window defogger, and more. They're available in 12 V and 24 V units, with amp ratings from 20 to 50, and numerous terminal options. Hella is one of the most respected names in lighting—and their top-quality accessories and electrical components are an economical choice for universal applications.
( 101 )
$22.99
HalTech Nexus Rebel LS oil pressure sensor adapter harnesses convert the oil pressure sensor connector on the Rebel LS main terminated harness from an early style/Gen III to a Gen IV connector.
Not Yet Reviewed
$24.00
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