WAI 389001 Window Motor and Regulator Assembly - Rear Right

Window Motor and Regulator Assembly

Restore rear right window operation with this WAI window motor and regulator assembly, part number 389001. It is built for BMW applications with confirmed fitment across multiple 5 Series and M5 models from the late 1980s and early 1990s.

Key Features

• Window motor and regulator assembly for direct replacement service.
• Compatible with rear right applications on select BMW 525i, 530i, 535i, 540i, and M5 models.
• Supports smooth glass movement when the original regulator or motor has failed.
• WAI part number 389001 for easy identification and ordering.

Detailed Description

This WAI 389001 window motor and regulator assembly is a fitment-specific replacement for BMW rear right window service. It is listed for 1989-1995 BMW 525i, 1989-1993 BMW 535i, 1991-1993 BMW M5, 1994-1995 BMW 530i, and 1994-1995 BMW 540i applications. Use this assembly when the original window mechanism no longer raises or lowers the glass correctly. The part number 389001 should be matched to the vehicle application before installation.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Issues It Can Solve

• Window glass that will not move up or down.
• Slow, uneven, or intermittent window operation.
• Noise from a worn motor or regulator mechanism.
• Failure of the rear right window to respond to switch input.

Installation Notes and Tips

Verify the vehicle year, model, and rear right position before ordering. Compare the original unit and connector style to confirm application match. After installation, test window travel and switch operation before reassembling the door trim. Part number 389001 is intended for the listed BMW fitments only.

Quality Assurance

WAI supplies replacement electrical and body components for service applications. Confirm fitment against the vehicle listing for BMW 525i, 530i, 535i, 540i, and M5 models before installation.