TechPro GM1320423 Door Mirror Set - Left

Left Door Mirror for Buick LaCrosse and Allure

This TechPro left door mirror is a direct replacement for select Buick applications with power, heated, and PTM features. Built to match OEM fit and finish, GM1320423 restores the driver-side mirror assembly with factory-style alignment and a clean exterior appearance.

Compatible with 2010-2013 Buick LaCrosse, left, and 2010 Buick Allure, left. This TechPro GM1320423 mirror is made for vehicles equipped with power adjustment, heating, and PTM, and it excludes BASE and CX models.

Key Features

• Premium replacement left outside rear view mirror
• OEM-style fit and finish for a factory-like appearance
• Built for power, heated, and PTM-equipped vehicles
• High-quality materials for durable, long-term use
• Factory-style precision installation with no modifications required
• Cross-reference: OEM 20757718 for the same application

Detailed Description

TechPro GM1320423 is a replacement door mirror set designed for the driver side of select Buick LaCrosse and Buick Allure models. It follows the original mirror shape and mounting points so the finished installation looks and functions like the factory unit. The mirror is intended for vehicles with power adjustment, heated glass, and PTM equipment, making it a direct match for the listed applications.

Use GM1320423 when replacing a damaged, worn, or non-functioning left mirror on a 2010-2013 Buick LaCrosse or a 2010 Buick Allure. The part number GM1320423 is also useful when searching for a Buick LaCrosse left mirror assembly or Buick Allure driver-side mirror replacement with OEM 20757718 interchange.

What This Part Helps Fix

• Broken or cracked driver-side mirror housing
• Loss of mirror adjustment function on the left side
• Heated mirror failure on equipped vehicles
• Exterior damage that affects vehicle appearance
• Improper fit from a previous replacement mirror

Installation Notes and Tips

Install GM1320423 using the factory-style mounting points and vehicle-specific connector layout for the listed applications. Confirm the vehicle is equipped with power, heated, and PTM features before ordering, and note that BASE and CX models are excluded. Verify left-side fitment against the original mirror assembly before final installation.

Quality Assurance

TechPro replacement parts are built to match OEM fit and finish for the specified application. GM1320423 is engineered for consistent fitment on the listed Buick models and is backed by TechPro manufacturing standards for replacement body components.