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2004 CHEVROLET Electrical Wiring
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Wiring Specialties Pro Series Coil Pack Harnesses
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
( 28 )
$169.99
ICT Billet LS Ignition Coil Wiring Harness Extensions
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.
( 3 )
$43.99
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$105.99
Painless Performance EFI Harnesses for GM LS1/LS6
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
FiTech Transmission Control Harnesses
Whether you want to add an automatic transmission to your vehicle with a FiTech fuel injection system or need to replace a damaged harness, FiTech transmission control harnesses get the job done. Repair or customize your vehicle's sensor layout the proper way with the FiTech transmission control harness designed for your application.
( 1 )
$153.00
ACDelco GM Genuine Parts Ignition Switches
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 )
$105.99
Standard Motor Combination Switches
Standard Motor combination switches keep several functions at your fingertips. Having one switch to activate different accessories--headlight control, turn signals, and windshield wipers--has proven effective and efficient for drivers. SMP combination switches replace faulty ones and restore operation, with a robust design created from high-grade materials that meet stringent demands. Stay focused on the road, knowing that the levers on your column will operate the wipers, washers, blinkers, and headlight beams appropriately, with Standard Motor combination switches.
( 17 )
$71.50
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$282.99
ATP Automatic Transmission Wiring Harnesses
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 )
$38.99
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$156.99
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Derale Electric Fan Relays
If you're installing an aftermarket electric fan, then you will need one of these Derale Performance electric fan relays. They feature a heavy-duty 40 amp rating and some include a color-coded wiring harness for an easy installation.
( 79 )
$25.78
On Sale
Holley LS Extended-Length Main Engine Harnesses
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 )
$688.95
$619.95
ICT Billet Sensor Harnesses
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
FiTech Oxygen Sensor Sub Harnesses
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
On Sale
Holley EFI ECU Connector Kits
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
( 4 )
$161.95
$145.75
ICT Billet Camshaft Position Sensor Adapter Harnesses
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.
( 3 )
$43.99
Fleece Performance Wiring Pigtails
Fleece Performance offers wiring pigtails and replacement connectors for a wide range of vehicles—including many Dodge, Chevrolet, GMC, Ford, and Ram models from the 1990s and up. These replacement parts are ideal for sensors, starter solenoids, cooling fans, and other components under the hood. Fully automated in-house wire cutting and terminal crimping ensure you get the highest quality connectors and pigtails to get your car or truck back on the road quickly. Order the model that corresponds to your electrical application.
( 4 )
$14.99
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$56.99
ACDelco Replacement Wiring Harness Connectors
When you need to make automotive repairs, ACDelco's selection of replacement wiring harness connectors offers you the best fit and function sockets and pigtails to do a variety of jobs. These quality-built, OE-like connectors and adapters provide you with efficient, less costly repair options for GM and American Motors vehicles. They're available in male or female, with an assortment of pins/cavities to fill your needs. Service your vehicle with a name you know and trust--ACDelco.
( 22 )
$14.99
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$46.99
Pacer Performance LED Modules
These Pacer Performance LED logic modules filter out turn signal input on all vehicles that use combined brake and turn signal lamps. These modules are required when using a single light as a third LED brake light. Works on most domestic models.
( 11 )
$15.99
ACDelco Wiring Connectors
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.
( 38 )
$4.50
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$45.99
ICT Billet Alternator Wiring Harnesses
ICT Billet alternator wiring harnesses are assembled with OEM tooling, OEM Delphi components (connector, lock, seals, and terminals), and OEM harness wire colors. They're designed to be used when converting from standard 105 amp GM alternators to hi-amp GM alternators, such as 145 or 160 amp. When swapping out your alternator, 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. Order the ICT harness recommended for your application.
( 1 )
$22.99
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$43.99
ACDelco Light Bulb Sockets
ACDelco light bulb sockets are replacement lamp bulb holders for your vehicle's interior and exterior lighting. The bulb sockets securely hold the bulb and provide the electrical connection to operate the bulb. These original equipment light bulb sockets have been manufactured to fit specific GM vehicle factory light assemblies. They're available for more than a hundred lighting connections on most vehicles. Order the model designed for your application.
( 23 )
$10.99
AMP Research PowerStep Pass-Through Harnesses
Designed for use with other PowerStep plug-and-play applications, these AMP Research pass-through harnesses will allow you to plug in your electric-powered PowerStep and still have access to your OBD-II port. Key features and benefits: * Easy plug-and-play connection—saves on installation time * Pass-through harness allows you to add a second OBD-II port beneath your steering column to run multiple accessories at once * Eliminates need to access door panels to locate and tap into factory wires * Also allows you to run diagnostics without having to unplug your PowerStep running boards
( 3 )
$119.99
Standard Motor Wiring Connectors
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.
( 142 )
$4.99
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$265.99
ICT Billet Wiring Pigtails
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!
( 11 )
$22.99
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$58.99
Bosch Relays
Plug in Bosch relays for your vehicle's power-switching needs. These quality-built relays exceed OEM specifications to provide reliable service for a wide variety of applications. You can trust Bosch for all of your automotive electrical needs. Features include: * Built to withstand extreme conditions * High-power switching * Function over a wide temperature range * Excellent vibration and impact resistance * Long service life and good climatic resistance
( 38 )
$2.99
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$4.99
ACDelco Replacement Relays
Don't take chances with old or questionable relays that can leave you stranded. ACDelco replacement relays are designed to exceed OEM specifications for accurate, maintenance-free operation. Trust your vehicle's needs to ACDelco.
( 16 )
$7.99
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$36.99
