TechPro GM1320337 Door Mirror Set - Left

Left Manual Trailer Tow Door Mirror Set

Restore clear rearward visibility with this TechPro door mirror set for GM heavy-duty and full-size trucks. Built for the left side and manual trailer tow applications, it follows factory-style dimensions and mounting for a direct replacement on select Chevrolet Silverado and GMC Sierra models.

• TechPro door mirror set, part number GM1320337
• Left-side mirror assembly for manual trailer tow type applications
• Factory-style precision for consistent fitment and alignment
• Constructed with high-quality materials for durability and long-term performance
• Measures 6.97 in. high, 19.61 in. long, and 12.76 in. wide
• Weighs 8 lb.

Detailed Product Overview

This TechPro GM1320337 mirror assembly is built for drivers who need a dependable replacement for a damaged or worn left door mirror. It is a direct-fit solution for 2007-2014 Chevrolet Silverado 2500 HD and Silverado 3500 HD, 2007-2014 GMC Sierra 2500 HD and Sierra 3500 HD, and 2007-2013 Chevrolet Silverado 1500 and GMC Sierra 1500 with manual trailer tow type equipment. The OE cross-reference for this application is 20862094.

Use GM1320337 when you need a replacement that matches the original mounting and function on the driver side. This part number is also a practical choice for Silverado and Sierra owners searching for a left manual trailer tow door mirror set with OE-style fitment.

What This Mirror Assembly Helps Address

• Broken or cracked left door mirror housing
• Loose or unstable mirror assembly on the driver side
• Poor rear visibility from a worn manual tow mirror
• Replacement needs after collision or impact damage
• Restoration of factory-style mirror function on Silverado and Sierra trucks

Installation Notes and Tips

Compatible With 2007-2014 Chevrolet Silverado 2500 HD, left; 2007-2014 Chevrolet Silverado 3500 HD, left; 2007-2014 GMC Sierra 2500 HD, left; 2007-2014 GMC Sierra 3500 HD, left; 2007-2013 Chevrolet Silverado 1500, left; and 2007-2013 GMC Sierra 1500, left. Confirm manual trailer tow type configuration and left-side placement before installation. Compare the original mirror assembly to GM1320337 to verify mounting points, shape, and connector or control style as applicable to the vehicle.

Quality Assurance

TechPro builds this mirror assembly with durable materials and factory-style precision to support reliable function and lasting value. Part number GM1320337 cross-references OE number 20862094 for the same application.