Four Seasons 89110 Engine Auxiliary Water Pump

Overview

The Four Seasons 89110 is an electric engine auxiliary water pump built for coolant circulation applications. It uses a plastic housing and plastic construction, with 20.07 mm inlet and outlet diameters and a 2-pin terminal layout.

Compatible With Volkswagen Passat and Volkswagen CC applications, this Four Seasons coolant pump is a new replacement part for vehicles that use an electric auxiliary pump. Part number 89110 is also referenced by Dayco 89110 for the same application.

Key Features

• Electric auxiliary coolant pump for engine cooling system circulation
• Plastic housing and plastic body construction
• 20.07 mm inlet and outlet connections
• 2-terminal electrical connection
• New replacement pump from Four Seasons Coolant Pump line

Detailed Description

Four Seasons 89110 is an electric engine auxiliary water pump designed for coolant transfer in supported Volkswagen cooling system applications. The compact pump measures 3.29 inches deep, 4.27 inches high, and 1.90 inches wide, making it suitable for tight engine bay packaging where an auxiliary circulation pump is required. The Four Seasons 89110 part number appears in cross-reference listings with Dayco 89110, and the same application is also associated with Volkswagen Passat, Volkswagen CC, and related coolant pump fitments.

The Coolant Pump product line focuses on replacement cooling components for service work where consistent coolant movement is needed. Four Seasons 89110 follows that approach with an electric design, plastic construction, and standardized inlet and outlet sizing for direct replacement use in the listed applications.

What It Helps Solve

• Loss of auxiliary coolant circulation
• Cooling system flow issues in electric pump applications
• Replacement needs for a worn or failed auxiliary water pump
• Fitment-specific service on Volkswagen cooling systems

Installation Notes and Tips

Verify connector style, inlet and outlet size, and vehicle application before installation. This pump uses a 2-pin terminal layout and electric operation, so the electrical connector and control strategy should match the original setup. Confirm the cooling system is properly drained and refilled according to service procedures after replacement.

Quality Assurance

Four Seasons states that its products are engineered and tested for years of trouble-free operation. The brand also notes more than 50 years of mobile A/C experience behind its replacement parts, including the 89110 auxiliary water pump.