Bosch 639-835-00-64 Electric Auxiliary Water Pump for Mercedes-Benz

The Bosch 639-835-00-64 Electric Auxiliary Water Pump is an OEM-quality replacement component designed to maintain optimal cooling system performance in Mercedes-Benz vehicles. This auxiliary pump provides independent coolant circulation to critical areas such as the turbocharger, heater core, and other auxiliary systems separate from the main engine-driven water pump.

Key Features:

• Electric operation with 12V rated voltage for reliable performance
• Flow rate of 900 liters per hour ensures adequate coolant circulation
• Operating pressure of 0.1 bar for optimal system function
• IP6K7 protection rating provides excellent resistance to water and dust ingress
• Clockwise rotation design for precise fitment
• Power consumption of only 13 watts for efficient operation
• Mixed material construction balances durability and corrosion resistance
• Unitized seal design ensures leak-free operation
• 100% function and leak tested before leaving the factory

This auxiliary water pump is designed to meet exact OEM specifications and fits various Mercedes-Benz models from 2003-2019, including E-Class, ML-Class, GL-Class, GLC, R-Class, SLK, Sprinter, and high-performance AMG models. The pump helps prevent engine overheating during demanding conditions and ensures proper temperature regulation in turbocharged engines. Cross-references to Mercedes-Benz part numbers 2115060000, 2118350264, and A6398350064.