Vaico V20-9734 Window Regulator - Rear Left

BMW Rear Left Window Regulator

Restore smooth rear window operation with the VAICO V20-9734 window regulator for select BMW 5 Series models. This electric regulator is specified for the rear left door and is listed for BMW 528i and 540i applications from 1997 through 1999, including late-production 1999 vehicles built to 03/1999.

Key Features

• Electric window regulator for rear left door use
• Fits select BMW 528i and BMW 540i models
• VAICO part number V20-9734 for direct catalog lookup
• Length: 570 mm; width: 340 mm; height: 50 mm
• Supplementary article information: without electric motor
• Paired article number: V20-9735

Product Details

The VAICO VAICO V20-9734 is a body and door replacement component built for power-operated rear left window systems on compatible BMW 5 Series sedans. It is listed for 1997-1998 BMW 528i rear left, 1999 BMW 528i rear left to 03/1999, 1997-1998 BMW 540i rear left, and 1999 BMW 540i rear left to 03/1999. With its electric operating mode and OE-style dimensions, this BMW 528i rear left window regulator is intended for vehicles that need precise glass movement and stable window travel.

VAICO focuses on replacement parts for European vehicles, and this window regulator follows that approach with application-specific fitment and catalog cross-reference support. The V20-9734 part number is also useful when searching for a BMW 540i rear left window regulator or comparing replacement options for the same door position.

This part cross-references Continental (e.g., WL44233, WR51130) for the same application.

What It Is Used For

• Replacing a worn or broken rear left window regulator
• Correcting slow, uneven, or stuck power window movement
• Addressing window glass that drops, binds, or will not stay aligned
• Restoring rear door window function on BMW 528i and 540i models
• Supporting repair of noisy or slipping electric window mechanisms

Installation Notes and Tips

Confirm rear left door fitment before ordering, since this regulator is listed for specific BMW 528i and 540i model years only. The product is supplied without an electric motor, so reuse or source the motor separately if required by your repair. Verify the paired article number V20-9735 when servicing the opposite-side or related application, and compare the regulator dimensions to the original unit before installation.

Quality Assurance

VAICO replacement parts are cataloged for vehicle-specific applications and supported by interchange references for accurate part matching. Use the part number V20-9734 and the confirmed BMW fitment data to verify selection before installation.