Standard Ignition DLA-321 Door Lock Actuator - Rear Left

Door Lock Actuator for Rear Left Applications

Standard Ignition DLA-321 is a rear left door lock actuator with latch, built for vehicles that need a direct replacement for a failed lock assembly. It uses a female connector, male blade terminals, and a 5-terminal layout to match the original electrical connection on the listed Buick applications.

Compatible with 2005-2006 Buick Allure rear left and 2005-2006 Buick LaCrosse rear left with child safety locks, as well as 2007-2008 Buick LaCrosse rear left lock assembly with actuator applications. Standard Ignition DLA-321 is also referenced by OE-style cross numbers for the same use.

Key Features

• Rear left door lock actuator with latch
• Female connector and male blade terminals
• 5-terminal electrical design
• Built for Buick Allure and Buick LaCrosse rear left door lock assembly applications
• Standard Ignition DLA-321 replacement part number

Detailed Description

This door lock actuator is engineered for technicians replacing a worn or inoperative rear left lock assembly on select Buick models. The latch-integrated design supports the original door lock function, while the connector and terminal configuration help maintain proper electrical interface during replacement. Standard Ignition DLA-321 is listed for 2005-2006 Buick Allure, 2005-2006 Buick LaCrosse with child safety locks, and 2007-2008 Buick LaCrosse rear left applications.

Standard Ignition focuses on actuator construction that addresses common failure points found in original equipment units. This part cross-references Dorman OE Solutions 931-380 for the same application.

What It Helps Fix

• Rear left door lock that no longer responds to the switch or keyless entry
• Lock assembly movement that is slow, weak, or intermittent
• Door lock operation problems on Buick Allure and Buick LaCrosse models
• Child safety lock-related rear door locking concerns on listed applications
• Electrical connection issues tied to a damaged actuator connector or terminals

Installation Notes and Tips

Verify the rear left position, connector style, terminal count, and latch configuration before installation. Confirm the vehicle year and model against the listed fitment for 2005-2006 Buick Allure, 2005-2006 Buick LaCrosse, and 2007-2008 Buick LaCrosse. Compare the original lock assembly with actuator to ensure the replacement matches the factory layout.

Quality Assurance

Standard Ignition applies decades of research and development to door lock actuator design, with a focus on meeting technician requirements and addressing known OE failure issues. The DLA-321 is built as a professional replacement for the listed Buick rear left applications.