Best Gm Engine Wiring Harness in 2022 [*Top Picks*]

Looking for the best gm engine wiring harness on the market? We’ve got you covered. Check out our ratings of absolute bestsellers below and make a final decision.

2271 Reviews Scanned

  • Painless Performance 60221 Standard Length EFI Harness for 2003-2006 GM Gen III 4.8, 5.3 & 6.0L w/Throttle by Wire
    Bestseller #1
    Painless Performance 60221 Standard Length EFI Harness for 2003-2006 GM Gen III 4.8, 5.3 & 6.0L w/Throttle by Wire (557)
      Painless fuel injection wiring utilizes all new TXL wire, OEM fitment connectors and grouped harness breakouts making for an easy install and saving you from using old re-worked wiring; Machine crimped terminals match OE quality Every EFI harness is tested before leaving our facility, ensuring that each connector is properly pinned out and seated no chasing miss-pinned connections with Painless EFI wiring Diagnostic port and check engine light included with powder coated bracket, allowing you to check codes and troubleshoot just like a new OE vehicle When reliability and performance can't be compromised, you want TXL Wire - not the inexpensive primary wire you find in other harnesses; High strand count copper and high-quality insulation makes for high abrasion resistance and easy routing American Made, American Proud Since 1990: Every Painless harness is proudly produced in Fort Worth, TX, where we also staff our unmatched Technical Support department. ; Need help during install simply give us a call Fit type: Universal Fit
  • Painless Performance 60101 Standard Length TBI Harness for 1986-1993 GM 4.3L V6; 5.0, 5.7 & 7.4L V8
    Bestseller #1
    Painless Performance 60101 Standard Length TBI Harness for 1986-1993 GM 4.3L V6; 5.0, 5.7 & 7.4L V8 (1977)
      Painless fuel injection wiring utilizes all new TXL wire, OEM fitment connectors and grouped harness breakouts making for an easy install and saving you from using old re-worked wiring; Machine crimped terminals match OE quality Every EFI harness is tested before leaving our facility, ensuring that each connector is properly pinned out and seated…no chasing mis-pinned connections with Painless EFI wiring Diagnostic port and check engine light included with powder coated bracket, allowing you to check codes and troubleshoot just like a new OE vehicle; See product description below for more fitment details When reliability and performance can't be compromised, you want TXL Wire - not the inexpensive primary wire you find in other harnesses; High strand count copper and high-quality insulation makes for high abrasion resistance and easy routing American Made, American Proud Since 1990: Every Painless harness is proudly produced in Fort Worth, TX, where we also staff our unmatched Technical Support department. ; Need help during install…simply give us a call
  • Painless Performance 60217 Standard Length EFI Harness for 1999-2006 GM Gen III 4.8, 5.3 & 6.0L w/Mechanical Throttle Body
    Bestseller #1
    Painless Performance 60217 Standard Length EFI Harness for 1999-2006 GM Gen III 4.8, 5.3 & 6.0L w/Mechanical Throttle Body (386)
      Painless fuel injection wiring utilizes all new TXL wire, OEM fitment connectors and grouped harness breakouts making for an easy install and saving you from using old re-worked wiring; Machine crimped terminals match OE quality Every EFI harness is tested before leaving our facility, ensuring that each connector is properly pinned out and seated no chasing mis-pinned connections with Painless EFI wiring Diagnostic port and check engine light included with powder coated bracket, allowing you to check codes and troubleshoot just like a new OE vehicle When reliability and performance can't be compromised, you want TXL Wire - not the inexpensive primary wire you find in other harnesses; High strand count copper and high-quality insulation makes for high abrasion resistance and easy routing
  • Aumtoni 4L60E Engine Wiring Harness Standalone for 1997-2006 GM DBC LS1 Vortec Engines 4.8L 5.3L 6.0L, Add 8 x EV1 to Delphi, W/4L60E Transmission Drive by Cable
    Bestseller #1
    Aumtoni 4L60E Engine Wiring Harness Standalone for 1997-2006 GM DBC LS1 Vortec Engines 4.8L 5.3L 6.0L, Add 8 x EV1 to Delphi, W/4L60E Transmission Drive by Cable (24)
      【Fit for】 It's designed to be a complete wiring harness for fuel injection system on GM 1997-2006 DBC LS1 4.8 5.3 6.0 Vortec engines with Drive by Cable throttle body and 4L60E or 4L80E (with adapter) transmissions. 【High-quality】W/4L60E stand alone wiring harness is made of premium material, 1200 Degree Fiberglass Braid on All Circuits Ran by Heat. It's a complete wiring harness for fuel injection system. 【Easy to Install】4L60E professional engine wiring harness includes a variety of connectors in the engine, just like sensor connector, instrument panel connection, speedometer, tachometer, parking neutral, fault indicator, DLC port and other interfaces, there are installation instructions inside. 【Package Include】1 x 4L60E Engine Wiring Harness Standalone, 8 x EV1 to Delphi Adapters. 【Service】Hassle-free return and money back policy, if this 4L60E wiring harness has any issue, please contact us, we will reply within 24 hours. Thanks for your support.
  • A-Team Performance - Standalone Wiring Harness W/4L60E Drive by Cable - Compatible with 4.8 5.3 6.0 GM LS LS1 LS6 LS Truck Swap Vortec 1999-2003
    Bestseller #1
    A-Team Performance - Standalone Wiring Harness W/4L60E Drive by Cable - Compatible with 4.8 5.3 6.0 GM LS LS1 LS6 LS Truck Swap Vortec 1999-2003 (879)
      Standalone Wiring Harness W/4L60E Drive by Cable Compatible with for engines from '97 - '04 LS1 and LS6 Corvettes and '99-'06 drive-by-cable GM trucks with 4L60E transmissions. Throttle is Drive-by-Cable Injector and Plug Style is EV1 Harness Length:Standard
  • BELZAR 4L60E Standalone Wiring Harness Compatible with 1997-2006 GM LS1 Engine Vortec 4.8 5.3 6.0 Transmission Drive by Cable Fit for Chevy GMC Cadillac Hummer Trucks 4L60E DBC Wire Harness
    Bestseller #1
    BELZAR 4L60E Standalone Wiring Harness Compatible with 1997-2006 GM LS1 Engine Vortec 4.8 5.3 6.0 Transmission Drive by Cable Fit for Chevy GMC Cadillac Hummer Trucks 4L60E DBC Wire Harness (8)
      High-quality wire harness-wrapped plastic surface can withstand high temperature, a variety of strong impact, chemical reagents and pressure. The harness design has a sliding grommet seal 4-5 feet long from the rear of the cylinder head to the PCM mounting position below the vehicle dashboard. PACKAGE INCLUDS -Including all engine and transmission sensor connectors, Dash Connections, which include Speedometer, Tachometer, Park Neutral, Malfunction Indicator, TCC, a DLC Port. PROFESSIONAL INSTRUCTIONS -GM color coding is used in many wiring bundles, which is easy to install. Full plug-and-play four-wire connection (switching power supply, constant power supply, and ground connection required). WIDE APPLICATION -For 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 engine 4.8 5.3 6.0 vortrc. LS1 4L60E drive by cable engine automatic transmission harness which is 12-14 volts, ev1 fuel injection nozzle connector.Suitable for 97-06 annual output automatic transmission gearbox, and all 8 cylinders using 4L60E gearbox automotive. PROFESSIONAL INSTALLATION RECOMMENDED - Please check whether it is suitable for you before buying, If you have any questions, please feel free to contact us, we will be happy to help you
  • LS2 LS3 Standalone Wiring Harness w/4L60E Drive by Wire Fit for 2003-2007 Chevrolet GMC Cadillac Hummer Vortec Engine 4.8 5.3 6.0 Multec Injectors Plug 5 Pin MAF, LS Swap Wire Harness Green Blue ECM
    Bestseller #1
    LS2 LS3 Standalone Wiring Harness w/4L60E Drive by Wire Fit for 2003-2007 Chevrolet GMC Cadillac Hummer Vortec Engine 4.8 5.3 6.0 Multec Injectors Plug 5 Pin MAF, LS Swap Wire Harness Green Blue ECM (0)
      Vehicle Compatibility - LS2 LS3 standalone wiring harness with 4L60E transmission fits for 2003-2007 brive by wire, fits 4.8 5.3 6.0 vortec engines, and IF EV6 needed, PLEASE leave message to us about your injectors plug, we will reply you within 12 hours, green/blue pcm connector & multec/delphi fuel injector connectors. With Detailed Instruction - LS3 standalone wiring harness comes with a complete parts list install detailed instruction, standalone wiring harness weighs approximately 6.17 pounds and has a total length of approximately 90 inches, AND before using, please make sure that you have not replaced the original accessories, Note that harnesses are for non-emissions equipped vehicles and do not include air pump or EGR provisions, otherwise it will affect the use. 2-years shelf life. Feature - LS2 LS3 standalone wiring harness are designed for retrofitting 2003-2007 4.8L 5.3L 6.0L Vortec engines and 4L60E transmissions into older muscle cars and street rods or newer non-emissions controlled vehicles. Harness allows use of the factory Vortec intake manifold and multec injectors. High Quality Reinforced Ring Terminals - LS standalone wiring harness are completely plug and play with switched power, constant power and ground connections required. All harnesses come with the needed Dash Connections, which include Speedometer, Tachometer, Park Neutral, TCC, Malfunction Indicator, and a DLC Port. High Quality Material - All wiring harnesses have a high quality grommet installed on the harness (that slides for desired mounting), use GM Color Codes, many standalone wiring harness do NOT Use GM Color Codes. LS standalone wiring harness allow for installing the PCM underneath the dash of your vehicle with a sliding grommet seals for that professional leak proof look.
  • Universal Extra Long Wires 21 Circuit Wiring Harness Hotrod Fit for GM Chevy
    Bestseller #1
    Universal Extra Long Wires 21 Circuit Wiring Harness Hotrod Fit for GM Chevy (104)
      💫17 fuses and 21 circuits; GM column connectors are included 💫All wires are labeled every 5 inches so installation is easy 💫To make installation even easier, the wires are GM color coded 💫GM installations see photos above 💫Package includes wiper/radio acc, cruise/backup, heater/air, clock, dome, cig lighter, crtsy power, power door, power seat, fan power, coil, choke, instrument power, flasher, fuel pump power, brake, power window, headlight, radio battery, horn.
  • Genuine GM 22798216 Engine Wiring Harness Junction Block
    Bestseller #1
    Genuine GM 22798216 Engine Wiring Harness Junction Block (455)
      Engine compartment, with 6.6L diesel Package Dimensions: 10.0 H x 39.2 L x 23.8 W (centimetres) Package Weight: 0.979 kilograms Country of Origin : China
  • WMPHE Standalone Wiring Harness, Professional Engine Wiring Harness with 4L60E, Compatible with DBC LS1 4.8 5.3 6.0 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 ev1-Injector Plug and 3 Pin MAF
    Bestseller #1
    WMPHE Standalone Wiring Harness, Professional Engine Wiring Harness with 4L60E, Compatible with DBC LS1 4.8 5.3 6.0 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 ev1-Injector Plug and 3 Pin MAF (308)
      Compatible with drive by cable LS1 4L60E engine automatic transmission harness 1997-2006. 12-14 volts, ev1 fuel injection nozzle connector Suitable for 1997-2006 annual output automatic transmission gearbox, suitable for all 8 cylinders using 4L60E gearbox automotive, engine 4.8 5.3 6.0 Provided parts: Complete engine and transmission wiring harness including all engine and transmission sensor connectors, dash connections, which include speedometer, park neutral, -TCC, tachometer, malfunction indicator, and DLC port, complete detailed instructions A grommet is installed on the wiring harness, including wires, and the design of the sliding bellows sealing ring improves the durability of the wiring harness and allows professional leak proof installation Please check whether it is suitable for you before buying, we recommend professional installation
  • Also read Router for 150mbps Also read Christmas red truck fabric Also read Dark purple candy melts Also read Drawing salve for cysts

Leave a Reply

Your email address will not be published. Required fields are marked *