Four Seasons 89029 Engine Auxiliary Water Pump

Four Seasons 89029 Auxiliary Water Pump

The Four Seasons 89029 is a new electric auxiliary water pump built with a metal housing and OE-style dimensions for Mercedes-Benz cooling system service. It is designed for engine coolant components and meets or exceeds OEM requirements for direct replacement use.

For Mercedes-Benz models with intercooler or auxiliary coolant pump applications, this Four Seasons Water Pump line part supports coolant circulation to help maintain proper thermal control. The 89029 part number is a fitment-focused replacement for a wide range of Mercedes-Benz GLE, GLS, SL, CLS, E-Class, S-Class, and AMG applications.

Key Features

• Brand: Four Seasons Water Pump
• Part number: 89029
• Electric auxiliary water pump design
• Metal construction for durability
• New replacement part
• Meets or exceeds OEM specifications
• 2-terminal pin electrical connection
• 22.00 mm inlet and outlet diameters
• Overall dimensions: 3.25 in. height, 4.25 in. width, 7.50 in. depth

Product Details

This auxiliary coolant pump is engineered for Mercedes-Benz cooling system applications that require electric coolant circulation to the radiator or intercooler circuit. The Four Seasons 89029 is a direct-fit style replacement for vehicles such as the Mercedes-Benz GLE400, GLE43 AMG, GLS450, SL550, CLS550, E550, S600, and related AMG models listed in the fitment data. If you are searching for a Mercedes-Benz auxiliary water pump 89029 or a Four Seasons 89029 replacement, this part is built for the specified OE-style application.

This part cross-references Dayco 89029 for the same application.

Common Problems This Part Can Address

• Loss of coolant circulation through the auxiliary cooling circuit
• Cooling system warning lights tied to pump performance
• Intercooler coolant flow issues on turbocharged or performance applications
• Overheating concerns related to a failing electric coolant pump
• Noisy, weak, or non-functioning auxiliary pump operation

Installation Notes and Tips

• Verify the vehicle’s year, model, and cooling-system configuration before ordering.
• Confirm the 2-pin electrical connector and 22.00 mm inlet/outlet sizing match the original pump.
• Inspect hoses, clamps, and coolant condition during replacement to help prevent repeat failures.
• Bleed the cooling system according to Mercedes-Benz service procedures after installation.
• Use the fitment notes for position details such as to radiator or intercooler applications.

Quality Assurance

Four Seasons 89029 is a new part built to meet or exceed OEM requirements for the listed Mercedes-Benz applications. Its metal construction and OE-style dimensions support consistent replacement quality for cooling system service.