Dorman 645-639 Tail Light Socket

Reliable Tail Light Socket for Chevrolet and GMC Vehicles

The Dorman 645-639 tail light socket is designed to provide a secure and durable electrical connection for tail lights on select Chevrolet and GMC models. With a 3-wire configuration and female plastic terminals, this socket ensures proper fit and function for your vehicle's lighting system.

• Compatible with Chevrolet Corvette, Express 1500, 2500, 3500 and GMC Savana 1500, 2500, 3500
• Three-wire design for accurate electrical connections
• Female (hembra) plastic terminals for reliable contact
• Includes a 10-inch pigtail wire for flexible installation
• Part number 645-639 for precise replacement

Product Features and Specifications

The Dorman 645-639 tail light socket features a total length of 10 inches including the wire, with a 2.5-inch socket length without the cable. The three-wire setup allows for proper tail light function, while the female plastic terminals provide corrosion resistance and secure connections. This pigtail socket is designed to replace worn or damaged tail light sockets on Chevrolet Corvette and Express series, as well as GMC Savana models, ensuring compatibility and ease of installation.

Common Applications and Problem Resolution

• Restores tail light electrical connectivity on Chevrolet Corvette and Express 1500, 2500, 3500
• Replaces damaged or corroded tail light sockets on GMC Savana 1500, 2500, 3500
• Solves intermittent tail light failures due to faulty socket connections
• Addresses wiring issues caused by broken or frayed tail light socket wires
• Ensures proper illumination and safety compliance for rear lighting

Installation Notes and Tips

Installation of the Dorman 645-639 tail light socket requires disconnecting the vehicle battery to prevent electrical shorts. Carefully remove the old socket and connect the new pigtail socket by matching the three wires according to the vehicle’s wiring diagram. The 10-inch wire length provides flexibility for routing and securing the socket within the tail light assembly. Ensure all connections are tight and protected from moisture to maintain long-term reliability.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 645-639 tail light socket is made with durable plastic terminals designed to resist corrosion and wear. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship to provide confidence in your replacement part.