Pioneer Cables 772117 Automatic Transmission Wiring Harness

Reliable Automatic Transmission Wiring Harness for Chevrolet, GMC, and Hummer

The Pioneer Cables 772117 automatic transmission wiring harness is designed to provide a dependable electrical connection for select heavy-duty Chevrolet, GMC, and Hummer vehicles. Engineered to meet OEM specifications, this harness ensures consistent transmission performance and electrical integrity.

• Compatible with Chevrolet Silverado 2500 HD, 3500, and their Classic variants
• Fits GMC Sierra 2500 HD, 3500, and Classic models
• Also compatible with Hummer H1 transmission systems
• Direct replacement for factory automatic transmission wiring harness
• Durable construction for long-lasting electrical connectivity

Product Details and Compatibility

The Pioneer Cables part number 772117 is an automatic transmission wiring harness specifically designed for heavy-duty trucks and SUVs including Chevrolet Silverado 2500 HD, Silverado 3500, and their Classic versions, GMC Sierra 2500 HD, Sierra 3500, and Classic models, as well as the Hummer H1. This wiring harness facilitates the proper transmission of electrical signals between the vehicle’s transmission control module and the transmission itself, ensuring smooth shifting and reliable operation. Its construction meets or exceeds OEM standards, providing a precise fit and reliable performance in demanding driving conditions.

Common Applications and Issues Addressed

• Restores faulty or damaged transmission wiring connections
• Eliminates transmission shifting problems caused by wiring faults
• Prevents intermittent electrical failures in transmission control
• Replaces worn or corroded harnesses in Chevrolet Silverado and GMC Sierra HD models
• Supports transmission diagnostics and repair on Hummer H1 vehicles

Installation Notes and Tips

• Ensure vehicle compatibility with Chevrolet Silverado 2500 HD, 3500, GMC Sierra 2500 HD, 3500, or Hummer H1 before installation
• Disconnect the battery prior to harness replacement to avoid electrical shorts
• Follow factory service manual instructions for routing and securing the wiring harness
• Inspect connectors for corrosion or damage and clean mating surfaces before installation
• Test transmission operation after installation to confirm proper electrical function

Quality Assurance and Warranty

Pioneer Cables manufactures the 772117 automatic transmission wiring harness to meet stringent quality standards. Each harness undergoes thorough inspection to ensure durability and electrical reliability. While specific warranty details may vary, Pioneer Cables typically offers coverage against manufacturing defects to provide confidence in product performance.