SKP SK645036 Tail Light Wiring Harness - Left

Tail Light Wiring Harness for Silverado and Sierra

SKP SK645036 is a left tail light wiring harness for select Chevrolet Silverado and GMC Sierra trucks with Fleetside beds. It is built for direct replacement on listed applications, including 2016-2019 Chevrolet Silverado 2500 HD and 3500 HD, plus 2016-2019 GMC Sierra 3500 HD.

• Tail light wiring harness for the left side
• Compatible with Fleetside bed configurations on listed trucks
• Direct-fit replacement for damaged, corroded, or heat-affected rear lamp wiring
• Part number SK645036 for ordering and catalog lookup
• Fits 2016-2019 Chevrolet Silverado 2500 HD, left
• Fits 2016-2019 Chevrolet Silverado 3500 HD, left
• Fits 2016-2019 GMC Sierra 3500 HD, left
• Fits 2019 Chevrolet Silverado 1500 LD, left
• Fits 2016 Chevrolet Silverado 1500, left

This SKP tail light wiring harness, SK645036, serves as the rear lamp wiring connection on the left side of the truck. It is listed for Chevrolet Silverado and GMC Sierra applications with Fleetside beds, with notes excluding LT and SLT on the 1500/1500 LD listings and excluding Single Rear Wheel on the Sierra 3500 HD listing. Use SK645036 when the original harness has broken conductors, damaged connectors, or intermittent tail lamp operation.

Common Problems It Can Address

• Inoperative left tail light or rear lamp circuit
• Intermittent lighting caused by damaged wiring
• Corrosion at the rear lamp harness connection
• Heat or abrasion damage near the tail lamp area
• Connector or terminal wear on the left rear lighting circuit

Installation Notes and Tips

Verify the vehicle’s bed style, trim notes, and rear axle configuration before ordering. This harness is listed for the left side only and should be matched to the exact year, make, model, and notes shown for the application. Compare the original connector layout and routing path to confirm proper fitment on your Chevrolet Silverado 1500, Silverado 2500 HD, Silverado 3500 HD, or GMC Sierra 3500 HD.

Quality Assurance

SKP replacement electrical components are cataloged for direct application matching. Confirm all fitment details against the vehicle identification and existing harness before installation. This part cross-references no additional part numbers in the provided data.