TYC 660720 Window Regulator - Front Left

Front Left Manual Window Regulator

This TYC window regulator is a front left replacement for manual door glass operation. It is listed for a wide range of GM trucks and SUVs, including Chevrolet Silverado 1500, Silverado 2500 HD, Silverado 3500 HD, Suburban, Tahoe, Avalanche, and GMC Sierra, Yukon, and Yukon XL applications.

• Front left mounting position for the driver-side door.
• Manual window regulator design for hand-crank window systems.
• Direct replacement for select Chevrolet and GMC body applications.
• Cross-references TYC 660719 for the opposite side.
• Interchanges with 20914715 and Partslink GM1350182.

Fitment and Application Details

Compatible with 2007-2014 Chevrolet Silverado 2500 HD, front left, manual; 2007-2014 Chevrolet Silverado 3500 HD, front left, manual; 2007-2014 Chevrolet Suburban 1500, front left, manual; 2007-2014 Chevrolet Tahoe, front left, manual; 2007-2014 GMC Sierra 2500 HD, front left, manual; 2007-2014 GMC Sierra 3500 HD, front left, manual; 2007-2014 GMC Yukon, front left, manual; 2007-2014 GMC Yukon XL 1500, front left, manual; 2007-2013 Chevrolet Avalanche, front left, manual; 2007-2013 Chevrolet Silverado 1500, front left, manual; 2007-2013 Chevrolet Suburban 2500, front left, manual; 2007-2013 GMC Sierra 1500, front left, manual; and 2007-2013 GMC Yukon XL 2500, front left, manual. This TYC 660720 is the correct type of replacement when the front left manual window regulator is worn, binding, or no longer moving the glass properly.

Common Repair Symptoms

• Window will not raise or lower from the front left door.
• Cranking effort feels rough, loose, or inconsistent.
• Glass moves unevenly or slips inside the door.
• Existing regulator has broken or worn internal components.
• Manual window operation is slow or stops partway.

Installation Notes

Verify the front left position and manual window configuration before ordering. Compare the original regulator and connector layout to confirm match with the vehicle door assembly. For best results, inspect the window guides, glass channels, and related door components during replacement.

Quality Assurance

TYC supplies replacement automotive components with application-specific fitment coverage. Part number 660720 is cataloged for direct replacement use on the listed Chevrolet and GMC models, with interchange references available for cross-checking.