Autotecnica GM0818021 Door Lock Actuator - Front Left

Front Left Door Lock Actuator for GM Trucks and SUVs

Restore factory door lock operation with this Autotecnica door lock actuator, part number GM0818021. It is a direct-fit OE replacement for the front left door on select 2007-2009 Cadillac, Chevrolet, and GMC models, with plug-and-play connection to the original wiring.

Key Features

• Direct-fit OE replacement design for factory-style door lock function
• Easy plug-and-play electrical connection to original wiring
• Built with high-quality materials for heat resistance in summer cabin conditions
• Alloy conductors help reduce electrical resistance and current draw
• Designed for reliable, long-term operation
• OE-specific connector shape with male connector and male terminal

Detailed Description

Autotecnica GM0818021 is a front left door lock actuator engineered for vehicles that need a precise OE-style replacement. It is built for 2007-2009 Cadillac Escalade, Escalade ESV, and Escalade EXT, plus 2007-2009 Chevrolet Avalanche, Silverado 1500, Silverado 2500, Silverado 2500 HD, Silverado 3500, Silverado 3500 HD, Suburban 1500, Suburban 2500, and Tahoe, as well as 2007-2009 GMC Sierra 1500, Sierra 2500 HD, Sierra 3500 HD, Yukon, Yukon XL 1500, and Yukon XL 2500. This part number, GM0818021, is intended to restore consistent locking performance without modifying the factory harness.

This part cross-references Autotecnica GM0818021 for the same application.

Common Issues This Part Can Address

• Door lock not responding from the switch or key fob
• Intermittent locking or unlocking on the front left door
• Slow or weak actuator movement
• Electrical resistance causing inconsistent lock operation
• Loss of factory door lock function on the driver-side front door

Installation Notes and Tips

Fits 2007-2009 Cadillac Escalade, front left. Fits 2007-2009 Cadillac Escalade ESV, front left. Fits 2007-2009 Cadillac Escalade EXT, front left. Fits 2007-2009 Chevrolet Avalanche, front left. Fits 2007-2009 Chevrolet Silverado 1500, front left. Fits 2007-2009 Chevrolet Silverado 2500, front left. Fits 2007-2009 Chevrolet Silverado 2500 HD, front left. Fits 2007-2009 Chevrolet Silverado 3500, front left. Fits 2007-2009 Chevrolet Silverado 3500 HD, front left. Fits 2007-2009 Chevrolet Suburban 1500, front left. Fits 2007-2009 Chevrolet Suburban 2500, front left. Fits 2007-2009 Chevrolet Tahoe, front left. Fits 2007-2009 GMC Sierra 1500, front left. Fits 2007-2009 GMC Sierra 2500 HD, front left. Fits 2007-2009 GMC Sierra 3500 HD, front left. Fits 2007-2009 GMC Yukon, front left. Fits 2007-2009 GMC Yukon XL 1500, front left. Fits 2007-2009 GMC Yukon XL 2500, front left.

Verify OE-specific connector shape and terminal style before installation. No mounting hardware is included. Confirm the front left position and original wiring configuration before replacing the actuator.

Quality Assurance

Autotecnica builds this actuator with materials selected to handle cabin heat and with alloy conductors for stable electrical performance. GM0818021 is backed by a 24 Month Unlimited Mileage Warranty.