VDO WR40854 Window Regulator - Front Left

VDO WR40854 Front Left Window Regulator

The VDO WR40854 is a front left electric window regulator built for direct replacement service on select Dodge trucks and SUVs. It is engineered to match original equipment fit, form, and function, helping restore smooth driver-side window movement on vehicles such as the Dodge D150, D250, D350, Ramcharger, W150, W250, and W350.

Built with a metal frame and supplied without a motor, this window regulator is a practical OE-style solution for worn or failed power window assemblies. VDO manufactures these regulators in ISO TS certified facilities and offers broad coverage for domestic, Asian, and European passenger cars and light trucks.

Key Features

• Front left mounting position for driver-side window service
• Electric window operation type
• Metal frame construction
• Motor not included
• Mounting hardware not included
• OE-style fit, form, and function for straightforward replacement
• Part number WR40854 for catalog and cross-reference lookup

Detailed Description

VDO WR40854 is a replacement window regulator for front left applications on 1978-1993 Dodge D150, 1981-1993 Dodge D250, 1981-1993 Dodge D350, 1978-1993 Dodge Ramcharger, 1980-1990 Dodge W150, 1981-1990 Dodge W250, 1981-1990 Dodge W350, 1985-1989 Dodge D100, 1986-1989 Dodge W100, 1980 Dodge D200, 1980 Dodge D300, 1980 Dodge W200, and 1980 Dodge W300. It is built to restore electric window function on the front left door with a design that mirrors the original part for easier service and proper alignment. This part cross-references Dorman OE Solutions 740-854 for the same application.

What It Helps Fix

• Window glass that will not raise or lower on the front left door
• Slow, uneven, or binding power window movement
• Broken or worn regulator mechanisms inside the door
• Loss of reliable electric window operation in older Dodge trucks and SUVs
• Driver-side window function issues caused by repetitive use or weather exposure

Installation Notes and Tips

Verify the vehicle’s front left door configuration before ordering, since this regulator is specific to electric window operation and does not include a motor. Compare the original regulator shape, mounting points, and connector setup to confirm a proper match. On older Dodge D-series trucks and Ramcharger models, inspect the window tracks, guides, and related door components during installation to help ensure smooth operation after replacement. The part number WR40854 can be used to confirm application details during parts lookup.

Quality Assurance

VDO builds this window regulator in ISO TS certified facilities and supplies it as an OE-style replacement part for consistent fit and function. The WR40854 is engineered to deliver like-new window performance when installed on the listed Dodge applications.