SKP SK645034 Tail Light Wiring Harness - Right

Tail Light Wiring Harness for GMC Sierra

Restore rear lighting function with this SKP tail light wiring harness, part number SK645034. It is built for the right side and matches specific GMC Sierra 1500, Sierra 2500 HD, and Sierra 3500 HD Fleetside applications.

Key Features

• Tail light wiring harness for the right rear lighting circuit
• Direct fit for Fleetside-equipped GMC Sierra trucks
• Application-specific coverage for Sierra 1500, Sierra 2500 HD, and Sierra 3500 HD
• SKP SK645034 replacement part number for catalog lookup

Fitment Details

• Fits 2012-2014 GMC Sierra 2500 HD, right, w/ Fleetside
• Fits 2007-2009 GMC Sierra 2500 HD, right, w/ Fleetside
• Fits 2012-2014 GMC Sierra 3500 HD, right, w/ Fleetside; w/ Single Rear Wheel (SRW)
• Fits 2007-2009 GMC Sierra 3500 HD, right, w/ Fleetside; w/ Single Rear Wheel (SRW)
• Fits 2012-2013 GMC Sierra 1500, right, w/ Fleetside
• Fits 2007-2009 GMC Sierra 1500, right, w/ Fleetside

Common Repair Uses

• Broken or damaged tail light wiring on the right side
• Intermittent rear lamp operation caused by worn harness connections
• Corrosion or heat damage at the tail light circuit
• Electrical faults affecting brake, turn, or running light output
• Replacement after harness cracking or connector failure

Installation Notes

Verify the truck’s year, model, rear body style, and right-side application before ordering. Match the existing connector layout and routing points to the original harness for proper installation on the GMC Sierra 1500, Sierra 2500 HD, or Sierra 3500 HD.

Quality Assurance

SKP replacement electrical components are cataloged for specific vehicle applications, and SK645034 is listed for the confirmed GMC Sierra fitments shown above.