Dorman 902-085 Engine Auxiliary Water Pump

Dorman 902-085 Auxiliary Water Pump

This Dorman engine auxiliary water pump is built for specified Ford, Lincoln, and Mercury inverter cooler applications. It matches the original pump’s fit and function for direct replacement service, with a design focused on dependable cooling performance and durability.

Key Features

• Direct-fit auxiliary water pump for inverter cooler systems
• Plastic and steel construction with a black finish
• Clockwise rotation for the specified application
• 2 mounting holes for OE-style installation points
• Inlet and outlet pipe diameter: 0.57 in.
• Compact 4.7 in. depth for tight packaging requirements
• Part number 902-085 for easy identification

Detailed Description

Dorman 902-085 is an engine auxiliary water pump engineered to match the original pump used on select 2010-2012 Ford Fusion, 2011-2012 Lincoln MKZ, and 2010-2011 Mercury Milan inverter cooler applications. It is built with plastic and steel materials and uses a clockwise rotation design to align with the factory cooling system layout. This part cross-references Dayco 89003 for the same application.

Use 902-085 when replacing a worn or failing auxiliary pump in the inverter cooling circuit. The OE-style dimensions, 0.57 in. inlet and outlet pipe sizes, and 2-hole mounting pattern support a straightforward replacement on the listed vehicles.

What It Helps Solve

• Inverter cooler circulation loss
• Coolant flow issues caused by a failing auxiliary pump
• Overheating concerns in the inverter cooling circuit
• Noise or reduced performance from a worn water pump
• Replacement needs for a damaged OE auxiliary pump

Installation Notes and Tips

• Verify vehicle application by year, make, model, and inverter cooler configuration before installation.
• Inspect the mounting points and coolant connections for wear or damage during replacement.
• Gasket or seal is not included, so confirm the required sealing components separately.
• Pulley is not included and the pump does not use a shaft-included design.
• Confirm clockwise rotation matches the original pump before installation.

Quality Assurance

Dorman designs this auxiliary water pump to match the fit and function of the original component on the listed applications. The part is engineered for reliable performance and durability in inverter cooler service.