Dorman 746-003 Liftgate Lock Actuator

Reliable Liftgate Lock Actuator for Chevrolet Astro and GMC Safari

The Dorman 746-003 Liftgate Lock Actuator is designed to restore proper locking function to the rear liftgate of your Chevrolet Astro or GMC Safari. Engineered with durable plastic housing and a precise actuator arm, this component ensures consistent performance and secure closure.

Key Features of the Dorman 746-003 Liftgate Lock Actuator

• Body color: Black plastic housing for corrosion resistance
• Compact dimensions: 5.17 inches length and 2.46 inches width
• Includes a 9-inch wiring harness with 20-gauge wire for reliable electrical connection
• Connector and terminal gender: Female with blade-type terminals for secure fit
• Two mounting holes for straightforward installation
• Actuator arm length of 43 mm included for precise lock engagement
• Wiring harness included to simplify replacement process
• Package contains one door lock actuator unit

Detailed Description of the Dorman 746-003 Liftgate Lock Actuator

This liftgate lock actuator from Dorman is specifically engineered for use in Chevrolet Astro and GMC Safari models. The actuator features a durable plastic body in black, designed to withstand environmental exposure and mechanical wear. Its 5.17-inch length and 2.46-inch width allow it to fit seamlessly into the factory mounting location. The included wiring harness measures 9 inches and uses 20-gauge wire, ensuring proper electrical conductivity and compatibility with the vehicle's existing wiring system. The actuator arm, measuring 43 mm, is included to provide accurate lock movement. Female blade terminals and connector ensure a secure and reliable electrical connection. With two mounting holes, installation is straightforward and aligns with OEM specifications.

Common Issues Addressed by This Liftgate Lock Actuator

• Liftgate failing to lock or unlock properly
• Intermittent or no response from the rear door lock switch
• Unusual noises or grinding sounds when operating the liftgate lock
• Electrical connection failures causing lock malfunction
• Wear or damage to the actuator arm affecting lock engagement

Installation Notes and Tips

• Ensure vehicle battery is disconnected before installation to prevent electrical shorts
• Verify compatibility with Chevrolet Astro or GMC Safari models prior to purchase
• Use the included wiring harness and connectors to maintain OEM wiring integrity
• Secure actuator using the two mounting holes to prevent movement or misalignment
• Test lock operation after installation to confirm proper function

Quality Assurance and Warranty Information

Dorman manufactures this liftgate lock actuator to meet or exceed OEM standards for fit, form, and function. The plastic body and components are designed for durability and long service life. This part is backed by Dorman's limited warranty, providing coverage against defects in material and workmanship under normal use conditions.