TechPro GM1551129 Window Regulator - Rear Right

Rear Right Window Regulator for GM Trucks and SUVs

Restore smooth rear passenger window operation with this TechPro window regulator and motor assembly. Built for factory-style fit and consistent movement, it is a direct replacement for the rear right door on select Cadillac, Chevrolet, and GMC full-size trucks and SUVs.

TechPro GM1551129 is engineered for vehicles that use a regulator and motor assembly, with dimensions of 2.96 in. high, 24.57 in. long, and 17.16 in. wide. The 6 lb assembly is made with durable materials to support long-term performance and a clean, OEM-like appearance.

• Direct replacement window regulator and motor assembly
• Factory-style precision for the rear right door
• Durable construction for dependable window movement
• Helps restore proper window function and exterior appearance
• Cross-references OEM part number 20945141

Detailed Product Overview

This TechPro GM1551129 window regulator is a practical replacement for worn or failed rear right window components on GM body applications. It is a fitment-based solution for 2007-2014 Cadillac Escalade ESV, 2007-2014 Chevrolet Silverado 2500 HD, 2007-2014 Chevrolet Silverado 3500 HD, 2007-2014 Chevrolet Suburban 1500, 2007-2014 GMC Sierra 2500 HD, 2007-2014 GMC Sierra 3500 HD, and 2007-2014 GMC Yukon XL 1500. It also fits 2007-2013 Cadillac Escalade EXT, 2007-2013 Chevrolet Avalanche, 2007-2013 Chevrolet Silverado 1500, 2007-2013 Chevrolet Suburban 2500, and 2007-2013 GMC Sierra 1500, rear right.

This part number GM1551129 is a direct OE-style replacement for vehicles originally using OEM 20945141. It is suited for drivers looking for a rear right window regulator for Chevrolet Silverado 1500, GMC Sierra 1500, or Cadillac Escalade EXT applications with the correct factory configuration.

Common Problems This Part Can Address

• Rear passenger window that will not move up or down
• Slow, uneven, or noisy window travel
• Window that slips, binds, or drops inside the door
• Failed regulator and motor assembly on the rear right side
• Restoration of proper window operation after component wear

Installation Notes and Tips

Verify the vehicle year, make, model, and rear right door position before ordering. This assembly is specified for regulator and motor applications, so confirm the original setup matches the OE reference 20945141. Compare the mounting points and dimensions to the removed part before installation.

Professional installation is recommended for proper alignment and smooth operation. After installation, test the window through a full open-and-close cycle to confirm correct travel and motor function.

Quality Assurance

TechPro builds this replacement assembly with high-quality materials and factory-style precision to support durable, lasting performance. The part is designed to restore fit and function in the same application as the original equipment reference GM1551129.