Dorman 904-310 Diesel Glow Plug Controller

Dorman 904-310 Diesel Glow Plug Controller

The Dorman 904-310 diesel glow plug controller restores proper glow plug operation for cold-weather starting. It is a direct replacement for the original controller and is validated for specific vehicle years, makes, and models, including Mercedes-Benz Sprinter 2500 and Sprinter 3500 applications.

Key Features

• Direct replacement diesel glow plug controller for OE-style fit and function
• Helps restore correct glow plug control for reliable cold starts
• Validated for specific Mercedes-Benz, Dodge, and Jeep diesel applications
• Blade terminal design with 13 terminals and female connector gender
• Compact housing dimensions: 3.25 in. length, 4.5 in. width, 1.1 in. height
• Cross-references Mercedes-Benz 5175759AB and 6421532079 for the same application

Detailed Description

This Dorman 904-310 diesel glow plug controller is built as a direct replacement for the original unit, helping restore proper glow plug function when the factory controller is no longer operating correctly. It is a fitment-based replacement for diesel vehicles such as the Mercedes-Benz Sprinter 2500, Sprinter 3500, Sprinter 3500XD, GL350, ML350, E350, S350, R350, E320, GL320, ML320, and R320, plus Dodge Sprinter 2500 and Sprinter 3500 and Jeep Grand Cherokee diesel applications. For buyers searching for a Mercedes-Benz Sprinter 2500 glow plug controller or a Dorman 904-310 replacement, this part is matched to specific years and engine control requirements.

What It Helps Address

• Hard starting in cold weather
• Glow plugs not cycling correctly
• Extended crank time on diesel start-up
• Faulty glow plug controller replacement needs
• Loss of proper preheat control in supported diesel applications

Installation Notes and Tips

Confirm vehicle year, make, model, and diesel system requirements before installation. This controller uses a female connector with male blade terminals and 13 terminals, so connector match and terminal layout should be verified against the original part. Compare the original unit to the Dorman 904-310 before installation to ensure the replacement matches the OE configuration.

Quality Assurance

Dorman validates this direct replacement for specific vehicle applications to support proper fit and function. The part is engineered to restore glow plug control in the listed diesel vehicles and is backed by Dorman’s replacement-part development standards.