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WAI 81570 Window Regulator - Rear Left
| Brand | WAI 81570 |
|---|---|
| Position | Rear Left |
| Gear Material | Hardened steel gear |
| Attachment Type | Screws |
| Mounting Hardware Included | No |
| Window Operation Type | Electric |
| Motor Included | No |
| Installation Instructions Included | Yes |
| Description | Power window regulator |
| MEETS OR EXCEEDS OEM SPECS | Yes |
| NEW OR REMANUFACTURED | New |
| PLASTIC ROLLER | No |
| Fits | BMW · 4 vehicles |
Direct-fit replacement. Built to meet or exceed OE specifications for easier installation.
Hardened steel gear. Adds durable drive performance for electric window operation.
Limited lifetime warranty. Backed by WAI for added confidence after installation.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Power Window Regulator for BMW
WAI part 81570 is a new electric window regulator built for direct-fit replacement in compatible BMW rear left applications. It is engineered to meet or exceed OE specifications and uses a hardened steel gear for dependable window movement.
Key Features
- New power window regulator for electric window operation
- Hardened steel gear for durable drive performance
- Direct-fit design for easier installation
- Meets or exceeds OEM specifications
- Installation instructions included
Detailed Description
This WAI window regulator, part number 81570, is a precision-engineered replacement for BMW 528i and BMW 540i rear left power window applications from 1997-1998. It is built with high-grade materials and a hardened steel gear to support smooth electric window operation while matching OE manufacturing and performance requirements. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.
Common Issues It May Solve
- Window glass that will not move up or down
- Slow, uneven, or noisy power window operation
- Failure caused by worn regulator gears or internal components
- Loss of electric window function in the rear left door
Installation Notes and Tips
Compatible with rear left power window regulator applications on the listed BMW models. This unit attaches with screws and does not include a motor or mounting hardware. Verify the original regulator style and electrical connection before installation. The included instructions can help guide the replacement process.
Quality Assurance
WAI backs this new regulator with a limited lifetime warranty. The part is manufactured to meet or exceed OE specifications for fit and performance.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1998 | BMW | 528i | Rear Left | Power Window Regulator |
| 1998 | BMW | 540i | Rear Left | Power Window Regulator |
| 1997 | BMW | 528i | Rear Left | Power Window Regulator |
| 1997 | BMW | 540i | Rear Left | Power Window Regulator |
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