GM Genuine Parts® Factory-Grade Wiring Harness

Ensure precision and durability with the GM Genuine Parts® Factory-Grade Wiring Harness, the trusted choice for seamless integration and long-term performance in your Chevrolet, Buick, GMC, or Cadillac. Formerly known as ACDelco GM Original Equipment, this harness is designed, engineered, and tested by GM to meet strict OE standards—offering the quality your vehicle was built with.

🔧 Engineered for Easy Installation
Color-coded wires and OEM-matched connectors simplify installation, minimizing errors and time in the bay or garage. Whether you’re performing a repair or a full replacement, this harness ensures a snug, factory fit without modification.

🛡 Built to Last
A durable protective outer covering guards against abrasion, moisture, and extreme temperatures, ensuring consistent electrical performance in tough driving conditions.

✅ GM-Certified Quality
Every component is backed by rigorous GM testing protocols and real-world validation, giving you peace of mind that your vehicle retains its factory-level integrity and performance.

🔄 Updated with the Latest OE Advancements
GM continuously refines its parts with modern materials and technologies—this harness reflects the latest advancements to deliver superior reliability and compatibility.

Why Choose GM Genuine Parts®?

• Direct OE replacement for Chevrolet, Buick, GMC & Cadillac

• Designed and tested by GM Engineers

• Backed by General Motors for confidence and peace of mind

• Easiest, most accurate fit for GM vehicles

Restore your vehicle's performance with GM Genuine Parts®—where reliability meets original engineering.