Four Seasons 89035 Engine Auxiliary Water Pump

Four Seasons 89035 Auxiliary Water Pump

The Four Seasons Water Pump 89035 is an electric auxiliary coolant pump built for Mercedes-Benz cooling system service. It is a new, OE-style replacement that meets or exceeds OEM requirements and uses a plastic housing with 18.30 mm inlet and outlet diameters.

Designed for Mercedes-Benz applications that use an auxiliary coolant pump, this part supports coolant circulation in systems that need controlled flow after engine shutdown or during specific operating conditions. The Four Seasons 89035 is a direct-fit style replacement for select Mercedes-Benz C63 AMG, E63 AMG S, GLC63 AMG, and related models.

Key Features

• Brand: Four Seasons Water Pump line
• Part number: 89035
• Electric auxiliary water pump for engine coolant components
• Plastic construction
• 18.30 mm inlet and outlet diameters
• 2-terminal pin design
• New replacement part
• Meets or exceeds OEM specifications

Product Details

This auxiliary water pump is used in Mercedes-Benz cooling systems that require electric coolant circulation. It is listed for a wide range of Mercedes-Benz models, including 2011-2013 E350, 2012-2016 SLK55 AMG, 2014-2016 C300, 2015-2017 CLS400, 2018-2019 GLC63 AMG S, and 2019 C63 AMG S. The Four Seasons 89035 also cross-references Dayco 89035 for the same application.

As part of the Four Seasons Water Pump line, this component is intended for cooling-system service where an auxiliary coolant pump is specified. The compact 3.00-inch overall height, 3.25-inch overall width, and 4.00-inch depth support fitment in tight engine bay locations on Mercedes-Benz C-Class, E-Class, SLK, SL, CLS, and GLC applications.

What It Helps Address

• Loss of auxiliary coolant circulation
• Cooling system fault codes related to the electric water pump
• Insufficient coolant flow in Mercedes-Benz engine auxiliary cooling circuits
• Overheating concerns tied to a failing coolant pump
• Noisy or weak pump operation in the cooling system

Installation Notes and Tips

• Verify the vehicle’s year, model, and cooling-system configuration before ordering.
• Confirm bracket and heated windshield washer notes where listed in the fitment data.
• Inspect inlet and outlet hose connections for correct 18.30 mm sizing.
• Check electrical connector condition and terminal alignment before installation.
• Bleed the cooling system after replacement to remove trapped air.

Quality Assurance

Four Seasons lists this pump as a new part that meets or exceeds OEM requirements. It is engineered for Mercedes-Benz cooling-system applications and built to replace the original electric auxiliary water pump with the correct fit and function.