Dorman 902-5809 Engine Auxiliary Water Pump - Upper

Overview

Dorman 902-5809 is an electrical engine auxiliary water pump engineered to match the fit and function of the original pump on specified applications. Built with an aluminum housing and clockwise rotation, it is made for reliable coolant circulation in the auxiliary cooling circuit.

Compatible with Ford Fusion, Ford C-Max, Ford Police Responder Hybrid, and Lincoln MKZ applications, this auxiliary water pump supports the cooling system where precise flow and correct mounting matter. The Dorman 902-5809 is a direct-fit replacement for vehicles that use the upper auxiliary pump location.

Key Features

• Electrical auxiliary water pump for coolant circulation in the auxiliary cooling system
• Aluminum construction for a durable pump body
• Clockwise rotation for correct operation on listed applications
• Three mounting holes for secure installation
• Designed to match original fit and function on specified vehicles

Detailed Description

This Dorman auxiliary water pump is built for applications that require an electric pump in the upper cooling circuit. The aluminum housing, inlet and outlet pipe sizing, and clockwise rotation are specified to align with the original equipment layout, helping maintain proper coolant movement through the system. Part number 902-5809 is a practical replacement choice for Ford Fusion, Ford C-Max, Ford Police Responder Hybrid, and Lincoln MKZ models listed in the fitment data.

This part cross-references Standard Ignition EWP104 for the same application.

What It Is Used For

• Restoring coolant circulation when the auxiliary pump is no longer operating correctly
• Addressing overheating concerns tied to auxiliary cooling flow loss
• Replacing a leaking or worn electric water pump assembly
• Correcting fitment issues caused by a damaged original pump housing

Installation Notes and Tips

Verify the upper mounting location, electrical connector style, pipe diameters, and clockwise rotation before installation. The pump is listed without a pulley, gasket or seal, mounting bracket, or mounting hardware, so confirm all related components on the vehicle before beginning the job. Use the fitment data to confirm the correct application for your Ford Fusion, Ford C-Max, Ford Police Responder Hybrid, or Lincoln MKZ.

Quality Assurance

Dorman engineers this auxiliary water pump to match original fit and function on the specified applications and to deliver reliable performance and durability. Part number 902-5809 is built as a direct replacement for the listed cooling-system applications.