Dorman 645-702 Time Delay Relay Accessory Connector - Front or Right

Dorman 645-702 Time Delay Relay Connector

Restore a clean, reliable electrical connection with this Dorman time delay relay accessory connector. The 645-702 pigtail is built for repair work and accessory installations where a secure quick-disconnect connection and weather-resistant terminals matter.

• Female terminal connector with a locking tab for secure engagement
• Weatherproof terminals help protect the connection point
• 7-wire harness for relay and accessory wiring repairs
• 14-gauge wire construction for common automotive electrical circuits
• Metal terminal material for dependable contact retention
• Clean, OE-style appearance after installation

Detailed Product Overview

This Dorman 645-702 connector is a time delay relay accessory pigtail designed to replace damaged, corroded, or missing connector ends in vehicle electrical systems. It is commonly used on applications such as Chevrolet Trailblazer, GMC Envoy, and Buick Rendezvous models, along with many other GM vehicles listed in the fitment data. The female pin terminals and locking-tab design support a stable quick-disconnect connection, while the weatherproof terminal design helps maintain a cleaner, more durable repair.

This part cross-references Standard Ignition S-916 for the same application.

Common Repair Uses

• Broken or heat-damaged relay connector terminals
• Corrosion at the original accessory connector
• Intermittent electrical contact at the relay plug
• Damaged wiring during accessory or harness repair
• Needing a replacement pigtail for GM electrical connector service

Installation Notes and Tips

Match the connector style, terminal gender, and wire gauge before installation. Verify the vehicle application and connector position against the fitment list, especially on models with notes such as Exc. Climate Control, Front, or Right. For best results, transfer wiring carefully and confirm terminal seating and lock engagement after installation. Fits 2002-2009 Chevrolet Trailblazer, N/A; Fits 2002-2009 GMC Envoy, N/A; Fits 2002-2007 Buick Rendezvous, N/A; Fits 2000-2006 Chevrolet Tahoe, N/A; Fits 1999-2006 GMC Sierra 1500, N/A.

Quality Assurance

Dorman manufactures replacement electrical connectors for direct repair use, with a focus on fit, terminal retention, and serviceable OE-style construction. This connector is built to support dependable electrical repairs in a wide range of GM applications.