Goopool LS Engine Wiring Harness for Drive-by-Cable LS1 to 4L60E — 1997–2006, 36" PCM Extension, Color-Coded Plugs

Which vehicles and engines is this harness compatible with?

This harness fits Drive-by-Cable LS1 engines from 1997 through 2006 used with 4L60E transmissions. It was built for GM platforms where Vortec 4.8L, 5.3L and 6.0L engines are swapped into Chevy, GMC, Cadillac and Hummer models.

• Years: 1997–2006 Drive-by-Cable LS1 engines
• Engines: Vortec 4.8L, 5.3L, 6.0L
• Transmissions: 4L60E
• Fits: Chevy, GMC, Cadillac, Hummer truck/SUV platforms

How does installation work and what tools or skills are needed?

The harness is designed to be install-friendly: color-coded plugs, labeled connectors and a step-by-step instruction packet guide you through the process. Basic mechanical skills and common hand tools are sufficient for most installs; experienced installers can complete swaps faster using the provided compatibility list.

• Included: printed installation manual and parts compatibility list
• Design: color-coded LS stand-alone plugs for easier connections
• Mounting: added 36" of wire to reach under-dash PCM locations
• Support: 24-hour after-sales contact for troubleshooting

What electrical and dash functions are covered by the harness?

Goopool’s harness supplies all primary dash and transmission signals commonly required after an LS swap or harness replacement. That means speedometer and tachometer signals, park/neutral safety, torque converter clutch control, the malfunction indicator light circuit and an in-cabin diagnostic (DLC) port all wired and ready.

• Speedometer and tachometer outputs included
• Park/neutral and TCC wiring for 4L60E integration
• MIL (Check Engine Light) circuit and DLC port provided
• High-quality grommet included; it slides for desired mounting

What should I expect in terms of build quality and warranty/support?

The harness uses quality components with factory-style connectors and a protective grommet to reduce chafing at firewall entries. If you encounter a defect, the seller offers responsive support and replacement options to ensure a satisfactory shopping experience.

• Factory-style connectors and durable insulation
• Protective sliding grommet for firewall mounting
• Customer service available 24 hours for technical help
• Replacement policy available for confirmed quality issues

This Goopool LS engine wiring harness is aimed at DIY enthusiasts, professional mechanics and custom builders performing LS swaps or replacing worn harnesses in late-90s to mid-2000s GM trucks and SUVs. If you need clear, labeled wiring for all dash functions, a longer PCM lead for under-dash mounting, and a plug-and-play approach that shortens wiring time and reduces guesswork, this harness was made for your project.