Four Seasons 86370 Engine Coolant Outlet Flange

Engine coolant outlet flange

Four Seasons 86370 is an engine coolant outlet flange built for cooling system service on select Ford and Mercury applications. It uses a plastic body with a hose barb outlet layout and includes a gasket or seal for a proper coolant connection.

Compatible With Ford Transit Connect, Ford Fusion, Mercury Mariner, Mercury Milan, Ford Escape, and Ford Focus applications listed below. This Four Seasons coolant flange is identified by part number 86370 and is engineered for direct replacement use in the cooling circuit.

Key features

• Plastic coolant flange construction for engine cooling system service
• Three hose barb outlets with a 1.3 in outlet diameter
• Gasket or seal included for the flange connection
• Four mounting holes for secure attachment
• Style without thermostat

Detailed description

Four Seasons 86370 is a coolant flange designed as an engine coolant outlet component for vehicles that use a three-port flange without a sensor port. The part number 86370 cross-references Gates CO35059 for the same application. Its plastic construction, hose barb attachment points, and sealed flange design make it a practical replacement when servicing coolant routing on Ford Transit Connect, Ford Fusion, and related Ford and Mercury models.

Four Seasons backs this coolant flange with more than 50 years of mobile A/C experience and states that its products are engineered and tested for long service life. The coolant flange format supports replacement of worn, cracked, or leaking outlet connections in the cooling system.

What it is used for

• Replacing a cracked coolant outlet flange
• Repairing coolant leaks at the flange connection
• Restoring hose attachment points in the cooling system
• Addressing damaged mounting holes or sealing surfaces
• Servicing a coolant flange without a thermostat

Installation notes and tips

Verify the vehicle application and note that listed fitments are for coolant flange use without a sensor port. Confirm hose size, outlet count, and mounting-hole layout before installation. Replace the seal during service and inspect adjacent hoses and the mating surface for wear or damage.

Quality assurance

Four Seasons states that its products are engineered and tested to provide years of trouble-free operation. The brand also draws on more than 50 years of mobile A/C experience in its product development and manufacturing approach.