Dorman 746-420 Liftgate Lock Actuator

Reliable Liftgate Lock Actuator for Audi Models

The Dorman 746-420 liftgate lock actuator is designed to restore proper locking function to the rear liftgate of select Audi vehicles. Engineered with durable plastic housing and a compact design, this actuator ensures consistent performance for your Audi A4, A4 Quattro, A6 Quattro, and Allroad Quattro models.

• Body color: Black for discreet installation
• Compact dimensions: 5.1 inches length and 1.12 inches width
• Blade terminal type with 2 terminals for secure electrical connection
• Female connector design for compatibility with factory wiring
• Two mounting holes for stable and precise installation
• Constructed from durable plastic material
• Includes one trunk lock actuator per package

Product Details and Specifications

The Dorman 746-420 liftgate lock actuator features a black plastic body measuring 5.1 inches in length and 1.12 inches in width, making it a direct replacement part for the rear liftgate locking mechanism. It uses a blade terminal type with two terminals and a female connector, designed to interface seamlessly with the existing wiring harness (not included). The actuator mounts securely using two mounting holes, ensuring a stable fit within the liftgate assembly. This part is specifically compatible with Audi A4, A4 Quattro, A6 Quattro, and Allroad Quattro models, providing a precise fit and reliable operation.

Common Applications and Problem Resolution

• Restores liftgate locking functionality on Audi A4 and A6 Quattro models
• Replaces faulty or non-responsive liftgate lock actuators
• Eliminates issues with liftgate not locking or unlocking properly
• Addresses electrical connection problems related to blade terminals
• Resolves mechanical wear or damage in the liftgate locking system

Installation Notes and Tips

Installation of the Dorman 746-420 liftgate lock actuator requires basic automotive electrical and mechanical skills. Ensure the vehicle battery is disconnected before beginning installation to prevent electrical shorts. The actuator mounts using two mounting holes and connects via a female blade terminal connector; verify compatibility with your vehicle’s wiring harness. Since the wiring harness is not included, reuse the existing harness or source a compatible one if necessary. Proper alignment during installation is critical for smooth lock operation.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 746-420 liftgate lock actuator undergoes quality control testing to ensure reliable performance in Audi A4, A4 Quattro, A6 Quattro, and Allroad Quattro vehicles. Warranty coverage details should be confirmed at the time of purchase, as they may vary by distributor or retailer.