Bosch 039202411E Engine Auxiliary Water Pump

Bosch Engine Auxiliary Water Pump

Bosch Engine Auxiliary Water Pump 039202411E is a new OE-style replacement built to meet original equipment specifications for BMW cooling system service. It is 100% tested for functionality, with torque testing used to verify impeller-to-shaft mating and vacuum leak testing used to confirm sealing integrity.

Compatible With BMW 530i, BMW 530i xDrive, BMW 540i, BMW 540i xDrive, BMW 640i xDrive Gran Turismo, BMW 740i, BMW 740i xDrive, BMW 750i, BMW 750i xDrive, BMW M550i xDrive, and BMW M760i xDrive applications.

• Brand: Bosch Engine Auxiliary Water Pump
• Part number: 039202411E
• Clockwise rotation
• 1 inlet port and 1 outlet port
• 118 W water pump rating
• Mixed-material construction
• No gasket or seal included
• No mounting hardware included

Product Details

This Bosch auxiliary water pump is designed for BMW cooling system circuits that require a precise OE-matched replacement. Bosch verifies fitment using OE mating parts and accessories, including related components such as pulleys, brake plates, housings, and tensioners, to confirm proper alignment and installation fit. The 039202411E is a direct replacement option for drivers servicing BMW 530i, BMW 540i, BMW 750i, and other listed models where the auxiliary pump is specified.

This part cross-references BMW 11518482744 for the same application.

Common Problems This Part Addresses

• Auxiliary coolant circulation loss
• Cooling system leaks at the pump housing or seals
• Impeller-to-shaft fitment issues
• Electrical pump performance decline
• Overheating concerns tied to auxiliary coolant flow

Installation Notes and Tips

Verify the vehicle’s OE part number and cooling system configuration before installation. This pump uses clockwise rotation and has one inlet and one outlet port, so port orientation should be checked against the original unit. Because no gasket or seal is included, reuse or replacement of sealing components should be planned separately as required by the vehicle application.

Quality Assurance

Bosch tests each water pump for torque integrity and vacuum sealing to help confirm proper impeller attachment and leak-free operation. The part is manufactured as a new replacement component and checked against OE mating parts for fitment verification.