Cardone 82-2120BR Power Window Motor and Regulator Assembly - Rear Left

Cardone Rear Left Window Motor Assembly

Restore rear left window operation with this Cardone Power Window Motor and Regulator Assembly, part number 82-2120BR. Built for BMW applications that use a combined motor and regulator design, it addresses a common failure point in the window lift system and helps return smooth, quiet glass movement.

Key Features

• 100% load tested for consistent performance before release.
• Motor is assembled with the correct lubricant amount for quiet operation and longer service life.
• Guaranteed fit and function for the listed BMW rear left applications.
• Upgraded gear materials are stronger and less brittle than original equipment to help reduce wear, stripping, and breakage.
• Motor magnets are engineered to deliver torque needed for demanding weather conditions and worn window system components.
• Meets or exceeds OEM performance expectations.
• New condition with regulator included and gear included.

Product Details

Cardone’s Power Window Motor and Regulator Assembly line is designed as a complete replacement solution for failed window lift systems. When the regulator begins to bind or wear, it can overload the motor and lead to premature burnout. Replacing the full assembly helps address both the drive unit and the mechanical support components at the same time. This Cardone 82-2120BR assembly is a direct-fit option for BMW 525i, 530i, 540i, 525iT, 535i, and M5 rear left window applications listed below.

This part cross-references BMW 51341944071 for the same application.

What It Helps Fix

• Rear left window that will not move up or down
• Slow, weak, or intermittent window operation
• Grinding, binding, or uneven glass travel
• Motor burnout caused by a worn regulator assembly
• Noise from worn gears or stressed window lift components

Installation Notes

Compatible With: Fits 1991-1995 BMW 525i, rear left; Fits 1994-1995 BMW 530i, rear left; Fits 1994-1995 BMW 540i, rear left; Fits 1993 BMW 525iT, rear left; Fits 1990-1993 BMW 535i, rear left; Fits 1991-1993 BMW M5, rear left. Verify connector style, mounting type, and door configuration before installation. This assembly uses a rivet mounting type, includes 2 wires, and has 4 mounting holes. Follow the instruction sheet and confirm the window tracks and guides move freely so the new motor is not overloaded during operation.

Quality Assurance

Cardone engineers this window motor and regulator assembly to meet or exceed OEM performance standards. Each unit is load tested to verify operation, and the design uses stronger gear materials and controlled lubrication to support long-term reliability in BMW rear left window service.