Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
Availability
CHEVROLET EXPRESS 2500 Electrical Wiring
Showing In Stock Items. Show All 105 Items.
Not Showing Customizable Items. View Customizable Items.
ACDelco Spark Plug Wire Sets
ACDelco spark plug wire sets meet or exceed original equipment specifications for fitment and performance. They're made from top-quality materials, so you know they'll last. The assembled ignition wires are available with different terminal ends and boot ends. Over 700 sets are available to cover virtually any vehicle on the road today. Order the spark plug wires recommended for your application.
( 163 )
$67.99
Clearance
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 )
$42.99
$4.50
—
$60.99
Chevrolet Performance Camshaft Position Sensor Pigtails
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 )
$45.99
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 )
$28.65
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
—
$156.99
ICT Billet Throttle Body Extension Harnesses
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
ICT Billet LS VVT to Non-VVT Camshaft Sensor Adapters
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
ACDelco Door Jamb Switches
If your door jambs aren't working properly, the lights won't turn on when opening the doors and the radio may not shut off when you close them. ACDelco door jamb switches work with your vehicle electronics to help optimize their capabilities. These are GM-recommended replacement parts for your vehicle, manufactured to OE specifications for direct-fit installation. They're available in a variety of styles and materials. Order the switch designed for your application.
( 5 )
$14.99
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
—
$48.99
Standard Motor Flasher Relays
Standard Motor flasher relays are offered in a full range of styles for late model and older applications. They all feature robust design and high-grade materials manufactured to stringent quality requirements to ensure reliable operation. Don't take chances with failing components--replace them with quality components from Standard Motor.
( 12 )
$7.99
—
$20.99
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
ICT Billet Wiring Harness Extensions
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
—
$58.99
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
—
$99.99
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
( 40 )
$2.99
—
$4.99
Haltech Nexus Rebel LS MAP Sensor Adapter Harnesses
Haltech Nexus Rebel LS MAP sensor adapter harnesses convert the MAP sensor connector on the Rebel LS main terminated harness from an early- style/Gen III to a modern Gen IV connector.
( 1 )
$24.00
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
—
$36.99
ICT Billet MAP Sensor Harness Adapters
ICT Billet MAP sensor harness adapters make change happen—easily! They offer a selection of pre-terminated manifold absolute pressure sensor adapters to get you plugged in properly. ICT Billet wire adapter harnesses are assembled with OEM tooling, connectors, lock seals, and terminals, and utilize factory harness wire colors. They're available in WeatherPack, Bosch, Delphi/GM, and Metri-pack connector styles for use on many Chevrolet small block LS-based engine applications from 1997 and up.
( 3 )
$43.99
Dorman Wiring Connectors
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.
( 58 )
$17.99
—
$77.99
Haltech Nexus Rebel LS Throttle Adapter Harnesses
Haltech Nexus Rebel LS throttle adapter harnesses are offered in several styles to join the throttle connector on the Nexus Rebel LS main terminated harness to a 6- or 8-pin LS DBW throttle, or to a cable-operated GM LS throttle body with a TPS and an IAC valve. Choose the proper cable for your setup.
Not Yet Reviewed
$28.00
ACDelco GM Genuine Parts Combination Switches
ACDelco GM Genuine Parts combination switches are factory-recommended replacements for a variety of applications. Combination switches are complex, controlling multiple functions such as the headlights, turn signals, cruise control, and windshield wipers on your vehicle. These original equipment combination switches are manufactured to provide the same fit, performance, durability, and service life you expect from General Motors.
( 1 )
$316.99
Standard Motor Headlight and Dash Light Dimmer Switches
Standard Motor Products replacement headlight and dash light dimmer switches are designed to meet or exceed OEM specifications for accurate, maintenance-free operation. Don't take chances with old or questionable headlight and dash light dimmer switches that can leave you in the dark. Trust your vehicle's needs to Standard Motor for top-notch performance.
( 54 )
$90.99
ACDelco Replacement Switches
ACDelco offers various electrical switches—including door lock, turn signal, ignition, trunk, HVAC, sensors, dimmers, brake lights, windshield wipers, and more for most vehicles on the road today. These replacements are manufactured to original equipment specifications to ensure proper fitment and performance. Order the switches recommended for your applications.
( 61 )
$39.99
—
$61.99
Rostra Original Equipment Style Cruise Control Switches
Rostra original equipment style cruise control switches look and perform just like the factory originals. These switches included wiper controls where indicated.
( 5 )
$49.99
ACDelco Replacement Diodes
ACDelco diodes are ideal for a wide variety of uses. They're great multi-purpose replacements for any faulty diodes that won't keep electrical current flowing in the right direction. The diodes are available in several styles.
Not Yet Reviewed
$5.99
