Nissens 831066 Engine Auxiliary Water Pump

Nissens 831066 Auxiliary Water Pump for BMW X5

The Nissens 831066 engine auxiliary water pump is built for thermal management in the 2007-2018 BMW X5. It is a 12-volt unit with a rectangular connector, a plastic/steel housing, and an included mounting bracket for a direct-fit service replacement.

For BMW X5 owners searching for an auxiliary coolant pump, Nissens 831066 offers the correct fitment range and OE-style construction details for the application.

Key Features

• Fits 2007-2018 BMW X5
• Engine auxiliary water pump for cooling system service
• 12-volt electrical design
• Rectangular connector shape
• Plastic / steel housing material
• Mounting bracket included
• No pulley included
• No gasket or seal included
• No bolts included

Product Details

Nissens 831066 is an engine auxiliary water pump developed for BMW X5 cooling system applications across the 2007-2018 model years. Nissens focuses on thermal and engine efficiency components, and this pump reflects that approach with a service-ready design that matches the listed electrical and mounting specifications. The part number 831066 is also useful when cross-checking replacement options for BMW X5 auxiliary coolant pump service.

This part cross-references Monroe Shocks & Struts (e.g., 902073) for the same application.

Common Issues This Part May Address

• Auxiliary coolant circulation loss in the BMW X5
• Cooling system fault codes related to pump operation
• Overheating concerns tied to reduced coolant flow
• Intermittent heater performance caused by poor coolant circulation
• Replacement of a worn or electrically failed auxiliary water pump

Installation Notes and Tips

Confirm connector style, voltage, and mounting points before installation. The pump is listed without a gasket or seal and without bolts, so inspect the existing sealing components and fasteners during service. Verify the cooling system is properly bled after installation to restore circulation and reduce trapped air.

Quality Assurance

Nissens develops and manufactures thermal management components to consistent quality standards, and the 831066 auxiliary water pump is part of that product range. The part number 831066 is intended for BMW X5 applications listed above and should be matched to the vehicle by year and configuration before ordering.