Dorman 904-608 Diesel Exhaust Fluid (DEF) Pump

DEF Pump Replacement for Mercedes-Benz and Volkswagen Diesel Models

This Dorman diesel exhaust fluid (DEF) pump is a direct-fit replacement for the original unit on select Mercedes-Benz Sprinter, GL, ML, R, S, E-Class diesel applications and Volkswagen Touareg and Passat diesel models. Part number 904-608 is built for plug-and-play service, with fit and function matched to the OE design.

Key Features

• Direct replacement DEF pump for diesel exhaust fluid delivery systems
• Plug-and-play design for OE-style electrical and mechanical fitment
• Extensively tested for reliable operation
• Constructed with quality components and a plastic housing
• Black finish with multiple blade-terminal connectors
• Mounting hardware included
• Cross-reference part numbers include 0024706894 and 561198969

Detailed Description

Dorman 904-608 is engineered to match the original DEF pump used in emissions control systems on 2007-2018 Mercedes-Benz and Volkswagen diesel vehicles. It is designed for direct replacement service, helping restore proper diesel exhaust fluid transfer in applications such as the Mercedes-Benz Sprinter 2500 and Sprinter 3500, Touareg, Passat, GL350, ML350, and related diesel models. The unit features a plastic housing, female blade-terminal connectors, and OE-style inlet and outlet port layout for straightforward installation and dependable fit.

This part cross-references 0024706894 and 561198969 for the same application. Part number 904-608 is a practical choice when replacing a failed DEF pump on Mercedes-Benz Sprinter 2500, Mercedes-Benz Sprinter 3500, or Volkswagen Touareg diesel vehicles.

Common Issues This Part May Resolve

• DEF pump failure causing emissions system faults
• Inconsistent diesel exhaust fluid delivery
• Warning lights related to the SCR/DEF system
• Hard starting or reduced performance tied to emissions system errors
• Leaks or electrical connection problems at the original pump assembly

Installation Notes and Tips

Verify connector style, port layout, and vehicle application before installation. This pump is intended for direct replacement use on confirmed fitments, including Fits 2010-2018 Mercedes-Benz Sprinter 2500, Fits 2010-2018 Mercedes-Benz Sprinter 3500, Fits 2007-2018 Volkswagen Touareg, and other listed diesel applications. Inspect the DEF tank, lines, and electrical connectors for contamination or damage before installing the new pump. Follow factory service procedures for priming, sealing, and system reset steps after replacement.

Quality Assurance

Dorman designs this DEF pump as an OE-style replacement and subjects it to extensive testing to support reliable service. The part is built from quality components to match the original fit and function for diesel emissions repair.