WAI WPR0591LMB Window Motor and Regulator Assembly - Rear Left

Rear Left Window Motor and Regulator Assembly

The WAI WPR0591LMB is a rear left power window regulator and motor assembly for select Pontiac Bonneville models. It is built for direct replacement service on the rear left door window system, with fitment covering 2000-2005 Pontiac Bonneville applications.

• Part number: WPR0591LMB
• Window motor and regulator assembly for the rear left position
• Fits 2000-2005 Pontiac Bonneville, rear left
• Direct-fit replacement for the power window regulator and motor assembly

Application Details

This WAI WPR0591LMB assembly is specified for the rear left window on 2000-2005 Pontiac Bonneville vehicles. It is the correct service part when replacing a worn or failed Pontiac Bonneville rear left power window regulator and motor assembly, and it supports OE-style repair for the vehicle’s glass lift mechanism.

Common Repair Symptoms

• Rear window glass will not move up or down
• Window movement is slow, uneven, or intermittent
• Motor runs but the glass does not respond
• Regulator cable, track, or lift mechanism has failed
• Rear left window stops short or binds during operation

Installation Notes and Tips

Verify the vehicle year, make, model, and rear left position before ordering. Compare the original regulator and motor assembly to confirm connector style, mounting points, and glass attachment layout match the existing Pontiac Bonneville setup. Transfer any vehicle-specific trim or door components as needed during service.

Quality Assurance

WAI supplies electrical and body components for automotive repair applications. Part number WPR0591LMB is cataloged for the listed Pontiac Bonneville fitment and should be matched to the rear left door application before installation.