Standard Ignition S2634 Tail Light Wiring Harness - Right

Tail Light Wiring Harness for GMC Sierra Right Side

Standard Ignition S2634 is a right-side tail light wiring harness built for specific GMC Sierra applications. It uses a 74-inch harness length, 18-gauge wire, and a square 5-connector layout to support a direct electrical connection at the rear lamp assembly.

Key Features

• Tail light wiring harness for the right side
• 74-inch harness length for rear lighting routing
• 18-gauge wire construction
• Square connector shape with 5 connectors
• Male gender connector with female blade terminals
• 6 terminal positions and 4-wire layout
• Standard Ignition S2634 replacement harness

Product Details

Standard Ignition S2634 is a tail light wiring harness for rear lighting service on select GMC Sierra trucks. It is listed for 2016-2019 GMC Sierra 1500, right; 2019 GMC Sierra 1500 Limited, right; 2016-2019 GMC Sierra 2500 HD, right; and 2016-2019 GMC Sierra 3500 HD, right. The harness configuration includes a square connector housing, male connector gender, female blade terminals, and 18-gauge wire to match the electrical interface used at the tail lamp connection point. This part cross-references GM Genuine (e.g., 23295979) for the same application.

Common Uses

• Restores a damaged or broken tail light wiring connection
• Addresses intermittent rear lamp operation caused by worn wiring
• Replaces corroded or heat-damaged connector ends
• Helps correct tail light electrical faults on GMC Sierra 1500, Sierra 2500 HD, and Sierra 3500 HD models
• Supports repair of right-side rear lighting harness issues

Installation Notes

Verify connector shape, terminal style, and harness routing before installation. Match the right-side application to the vehicle listed above and inspect the tail lamp connector, terminals, and surrounding wiring for corrosion, bent blades, or heat damage before connecting the replacement harness. Confirm secure seating at the lamp and harness junction after installation.

Quality Assurance

Standard Ignition is a recognized aftermarket source for electrical replacement parts, and S2634 is built to meet the fitment and connector requirements listed for the specified GMC Sierra applications.