WAI 81408 Window Regulator - Front Left

Overview

This WAI window regulator is a new electric replacement for the front left door and is built for direct-fit installation. It is engineered to meet or exceed OE manufacturing and performance specifications, with a hardened steel gear and plastic roller for consistent window movement.

Fits 1977-1985 Mercedes-Benz 300D, front left. Fits 1977-1983 Mercedes-Benz 240D, front left. Fits 1978-1981 Mercedes-Benz 280CE, front left. Fits 1977-1981 Mercedes-Benz 280E, front left. Fits 1979-1981 Mercedes-Benz 300TD, front left. Fits 1977-1980 Mercedes-Benz 280SE, front left.

Key Features

• New power window regulator for electric window operation
• Hardened steel gear for durable drive engagement
• Plastic roller for smooth window travel
• Screw attachment type for straightforward mounting
• Meets or exceeds OEM specifications

Detailed Description

WAI part number 81408 is a precision-engineered window regulator made for Mercedes-Benz door applications that require a front left electric regulator. As a new unit, it is built to match OE fit and performance expectations while using high-grade materials to support reliable operation over time. The design is focused on direct replacement service for classic Mercedes-Benz 300D, 240D, 280CE, 280E, 300TD, and 280SE applications.

This part cross-references 1237202746 for the same application. If you are replacing a worn regulator in a Mercedes-Benz 300D or another listed model, 81408 provides the correct electric regulator configuration with the specified attachment style and gear construction.

Common Issues This Part Can Solve

• Window glass that will not raise or lower properly
• Grinding or slipping during power window operation
• Uneven or slow window movement caused by worn regulator components
• Failure of the original electric regulator mechanism

Installation Notes and Tips

Confirm the vehicle uses an electric window regulator in the front left position before ordering. This unit uses screws for attachment, includes installation instructions, and does not include a motor or mounting hardware. Verify the regulator shape and connector-free mechanical layout against the removed part before installation.

Quality Assurance

WAI states that this regulator is manufactured to meet or exceed OE specifications and is backed by a limited lifetime warranty.