Keystone GM1551111 Rear Right Power Window Regulator Without Motor - OEM Replacement 15277679

The Keystone GM1551111 is an OEM-replacement rear passenger-side (right) power window regulator designed for the 2003–2007 Cadillac CTS and CTS-V. This regulator-only unit does not include the window motor, making it the ideal solution when the mechanical regulator assembly has failed but the existing motor remains serviceable.

The window regulator is the mechanical framework housed inside the door panel that guides and controls the up-and-down movement of the door glass. When the regulator fails, symptoms can include a window that moves slowly, makes grinding or popping noises, moves crookedly, or drops down into the door and won't stay up. Replacing the regulator restores smooth, reliable window operation.

Key Features:

• Direct OEM-style replacement — engineered to match original equipment specifications for a precise fit and proper function
• Rear right (passenger side) application — correct fitment for the rear door, passenger side
• Power window configuration — designed for power window systems; motor not included
• OEM cross-reference number: 15277679-PFM
• Partslink number: GM1551111

Installation requires removal of the door panel to access the regulator assembly. The motor from the original unit can be transferred to this replacement regulator. This part is sourced from Keystone Automotive Industries, a trusted supplier of collision repair and OEM-style replacement parts.