Dorman 748-740 Power Window Motor and Regulator Assembly - Rear Left

Dorman 748-740 Rear Left Window Motor and Regulator

This Dorman window motor and regulator assembly is a direct replacement for the rear left power window on select BMW models. Built to match the stock regulator’s fit, function, and performance, it is a practical solution for restoring normal window operation on a BMW 318i, 325i, or 328i.

• Direct replacement power window motor and regulator assembly
• Precision-engineered for the original fit and function
• Extensively tested for application-specific performance
• Plastic gear material
• Bolt-on attachment type
• Regulator included
• Package contents: 1 regulator and motor assembly

Detailed Product Overview

Part number 748-740 is designed for rear left window service on 1990-1995 BMW 325i, 1992-1998 BMW 318i, and 1996-1998 BMW 328i models. If you are searching for a BMW 318i rear left window motor and regulator assembly or a BMW 325i rear left power window regulator replacement, this unit provides the correct application-specific design for those vehicles. The assembly uses a bolt attachment style and includes the regulator, making it a focused replacement for worn or failed factory components.

This part cross-references Cardone Reman 47-2115 for the same application.

What It Helps Fix

• Window glass that will not raise or lower properly
• Slow, uneven, or noisy rear left window movement
• Failure caused by a worn regulator mechanism
• Loss of power window function from a failed motor assembly
• Binding or inconsistent window travel in the rear left door

Installation Notes and Tips

Installation instructions are not included. Verify rear left fitment by year, make, and model before installation. Because mounting hardware is not included, reuse or source the correct hardware as needed. Inspect the window tracks, guides, and electrical connector condition during replacement to help ensure proper operation after installation.

Quality Assurance

Dorman manufactures this replacement assembly to match the original equipment fit and function for the listed BMW applications. The part is extensively tested during development to support consistent performance in the specified vehicles.