Standard Ignition S2621 Tail Light Wiring Harness - Right

Tail Light Wiring Harness for Silverado and Sierra

Restore a secure rear lighting connection with this Standard Ignition tail light wiring harness, part number S2621. It is built for the right side and matches the OE-style connector layout used on select Chevrolet Silverado and GMC Sierra trucks.

• Tail light wiring harness for rear lamp repair
• Right-side application
• Male connector with rectangular shape
• 20-gauge wire with 4-wire configuration
• Female blade terminals with 4 terminal positions
• Harness length: 76 inches
• Housing length: 1 1/4 inches
• Bulb not included
• Retainer not included

Detailed Product Overview

Standard Ignition S2621 is a replacement tail light wiring harness designed for vehicles that need a direct rear lamp connection on the right side. It uses a rectangular male connector, 20 ga. wiring, and female blade terminals to match the electrical interface used on the listed applications. This part cross-references AC Delco (e.g., 22869169) for the same application.

Compatible With 2014-2015 Chevrolet Silverado 1500, right; 2015 Chevrolet Silverado 2500 HD, right; 2015 Chevrolet Silverado 3500 HD, right; and 2015 GMC Sierra 3500 HD, right. The S2621 is a practical choice when servicing a damaged, corroded, or intermittent tail lamp harness on a Chevrolet Silverado or GMC Sierra truck.

Common Problems This Part Can Address

• Broken or heat-damaged tail light wiring at the rear lamp
• Intermittent right-side tail light operation
• Corrosion at the connector or terminal interface
• Cracked housing or worn blade terminals
• Electrical faults caused by damaged rear lighting wiring

Installation Notes and Tips

Verify connector shape, terminal style, and right-side placement before installation. Inspect the mating connector, terminals, and nearby wiring for corrosion or heat damage so the replacement harness can seat properly and maintain a stable electrical connection. Confirm vehicle application by year, make, model, and position before ordering.

Quality Assurance

Standard Ignition supplies replacement electrical components for service and repair applications. Part number S2621 is built to match the listed fitment and connector specifications for the rear lighting circuit on the specified Chevrolet Silverado and GMC Sierra models.