Pioneer Cables 772117 Automatic Transmission Wiring Harness

Automatic Transmission Wiring Harness for GM HD Trucks

Pioneer Cables 772117 is an automatic transmission wiring harness for select GM heavy-duty trucks and Hummer applications. It is built as an exact-fit replacement for vehicles with a 7-solenoid, Gen 4 transmission setup and excludes off-road applications.

Key Features

• Direct replacement automatic transmission wiring harness
• Fits 7-solenoid, Gen 4 transmission configurations
• Exact-fit replacement part from Pioneer Cables
• Compatible with select Chevrolet Silverado, GMC Sierra, and Hummer H1 models
• Cross-references 350-0087 and 29543336 for the same application

Detailed Description

Pioneer Cables 772117 is an automatic transmission wiring harness made for select 2006-2014 Chevrolet Silverado 2500 HD, Silverado 3500 HD, GMC Sierra 2500 HD, Sierra 3500 HD, and related Classic models, plus the 2006 Hummer H1 and 2006 Silverado 3500 and Sierra 3500. This harness is specified for 7-solenoid, Gen 4 transmissions and is not for off-road applications. If you are servicing a Chevrolet Silverado 2500 HD or GMC Sierra 3500 HD transmission electrical issue, this part provides a direct replacement path for the original harness.

What It Helps Address

• Transmission electrical faults caused by damaged harness wiring
• Intermittent solenoid signal loss in 7-solenoid Gen 4 units
• Harsh or inconsistent shifting related to wiring damage
• Diagnostic trouble codes tied to transmission circuit problems
• Restoration of proper transmission connector routing and signal transfer

Installation Notes and Tips

Verify transmission configuration before installation: this harness is for 7-solenoid, Gen 4 applications only. Confirm vehicle year, make, model, and whether the truck is an off-road application before ordering. Inspect connectors, terminals, and surrounding transmission components for heat damage, corrosion, or fluid intrusion during service. Professional installation is recommended for accurate routing and electrical verification.

Quality Assurance

Pioneer Transmission Components are positioned as exact-fit replacement parts, giving technicians and owners a direct replacement option for GM transmission service. Part number 772117 is built for the listed applications and cross-references 350-0087 and 29543336.