Four Seasons 86161 Engine Coolant Outlet Flange

Engine Coolant Outlet Flange for Mazda and Ford

Four Seasons Coolant Flange 86161 is an engine coolant outlet flange built for direct-fit cooling system service on select Mazda and Ford vehicles. It is a plastic coolant flange with an included gasket or seal, and it meets or exceeds OEM requirements for the application.

Compatible With 2003-2008 Mazda 6, 2002-2006 Mazda MPV, and 2001-2004 Ford Escape. This Four Seasons coolant flange 86161 is a practical OE-style replacement for cooling system repairs where the outlet flange has cracked, warped, or begun leaking.

Key Features

• Engine coolant outlet flange / coolant flange design
• Plastic construction for OE-style fitment
• Gasket or seal included
• 2 mounting holes and 2 outlets
• Style: without thermostat
• Meets or exceeds OEM requirements
• Part number: 86161

Product Details

The Four Seasons Coolant Flange brand line focuses on engine coolant components used in cooling system repair. Part number 86161 is designed as a coolant outlet flange with three total ports, two outlet connections, and a non-symmetrical base. It does not include mounting hardware or a built-in thermostat lip, making it a straightforward replacement for the original flange design on the listed Mazda and Ford applications. This part cross-references Motorad CH9811 for the same application.

Common Problems This Part Can Address

• Coolant leakage at the outlet flange
• Cracked or brittle plastic flange housing
• Failed gasket or seal at the coolant connection
• Improper sealing after cooling system service
• Restoring the original coolant outlet connection on the engine

Installation Notes and Tips

Verify the flange shape, outlet count, and mounting-hole layout against the original part before installation. Clean the mating surface thoroughly, inspect adjacent hoses and clamps for wear, and transfer any required components from the vehicle if they are not supplied with the replacement. Use the included gasket or seal during assembly and torque fasteners to the vehicle manufacturer’s specification.

Quality Assurance

Four Seasons 86161 is built to meet or exceed OEM requirements for the listed fitments. It is engineered as a direct replacement coolant flange for service on 2003-2008 Mazda 6, 2002-2006 Mazda MPV, and 2001-2004 Ford Escape cooling systems.