Dorman 740-414 Window Regulator - Front Left

Reliable Manual Window Regulator for Mercedes-Benz 300 Series

The Dorman 740-414 manual window regulator is designed specifically for Mercedes-Benz 300D, 300SD, and 300TD models. This bolt-on replacement part ensures smooth manual window operation with durable materials engineered for longevity.

• Compatible with Mercedes-Benz 300D, 300SD, and 300TD models
• Manual window operation type for reliable control
• Durable metal and plastic frame construction
• Plastic gear material for consistent performance
• Bolt-on attachment type for straightforward installation
• Includes one manual window regulator (part number 740-414)

Product Details and Construction

The Dorman 740-414 window regulator features a combination of metal and plastic frame materials, providing a balance of strength and weight savings. The plastic gear material is designed to engage smoothly with the window mechanism, reducing wear over time. This manual regulator does not include a motor or wiring, as it is intended for vehicles with manual window operation. The bolt-on attachment type allows for a secure fit without the need for additional mounting hardware, which is not included.

Compatible Vehicles and Applications

This window regulator is compatible with the following Mercedes-Benz models: 300D, 300SD, and 300TD. It is an ideal replacement for worn or damaged manual window regulators in these vehicles, restoring proper window function and driver control.

• Resolves issues with windows that do not roll up or down smoothly
• Replaces broken or stripped window gears
• Fixes manual window mechanisms that are stuck or jammed
• Addresses rattling or loose window operation
• Restores proper window alignment and movement

Installation Notes and Tips

Installation of the Dorman 740-414 manual window regulator requires removal of the door panel and careful alignment of the regulator within the door frame. Since mounting hardware is not included, retain original bolts or source compatible fasteners. No installation instructions are provided, so consulting a repair manual specific to the Mercedes-Benz 300D, 300SD, or 300TD is recommended for proper installation procedures.

Quality Assurance and Warranty

Dorman manufactures this window regulator to meet or exceed OEM standards for fit and function. While no specific warranty information is provided, Dorman parts typically come with a limited warranty against defects in materials and workmanship. Using this part helps maintain the integrity of your vehicle’s manual window system.