Four Seasons 86090 Engine Coolant Outlet Flange - Rear

Coolant Flange for Volkswagen Passat

Restore a secure coolant outlet connection with this Four Seasons Coolant Flange, part number 86090. It is a plastic engine coolant outlet flange with two hose barb outlets and a thermostat lip, built for direct replacement service on the rear coolant flange location of the 1997 Volkswagen Passat.

Key Features

• Four Seasons Coolant Flange, part number 86090
• Engine coolant outlet flange for cooling system service
• Plastic construction
• 2 mounting holes and 2 bolt holes
• 2 hose barb outlets with 3 total ports
• Lip for thermostat: yes
• Style: without thermostat
• Meets or exceeds OEM requirements
• Fits 1997 Volkswagen Passat, rear

Product Details

The Four Seasons Coolant Flange 86090 is an engine coolant component designed for vehicles that use a rear-mounted coolant outlet flange with dual hose connections. This part is listed for the 1997 Volkswagen Passat, rear, and it follows the original equipment layout with a plastic body, two outlet connections, and a thermostat lip for proper system interface. Four Seasons Coolant Flange 86090 is a direct-fit style replacement for cooling system repair work where the original flange has cracked, warped, or begun leaking.

This part cross-references Dayco 86090 for the same application.

Common Repair Reasons

• Coolant leaking from a cracked flange housing
• Damaged hose barb connection at the rear coolant outlet
• Warped sealing surface causing coolant seepage
• Failed original flange during cooling system service
• Replacement of a worn coolant outlet flange on a 1997 Volkswagen Passat

Installation Notes

Verify the rear mounting location, hose routing, and outlet count before installation. Gasket or seal is not included, and mounting hardware is not included, so reuse or source the required service parts separately. Inspect the mating surface, hoses, and thermostat interface for wear before assembly to help ensure a proper seal on the Volkswagen Passat cooling system.

Quality Assurance

Four Seasons lists this coolant flange as meeting or exceeding OEM requirements for fit and function. Confirm part number 86090 against the original component and vehicle application before installation.