Four Seasons 85021 Engine Coolant Water Outlet

Engine Coolant Water Outlet for Ford, Mazda, Mercury

Four Seasons Water Outlet 85021 is an aluminum engine coolant outlet for vehicles that use a thermostat housing-style coolant connection without the thermostat included. It includes the gasket or seal and meets or exceeds OEM requirements for direct replacement service. This part is built for select Ford Escort, Mercury Tracer, Mazda 323, Mazda Protege, and Mazda MX-3 applications.

Key Features

• Aluminum construction for coolant system durability
• Gasket or seal included for installation support
• Outlet style, w/o thermostat
• Thermostat not included
• Meets or exceeds OEM specifications
• Inlet diameter: 1.005 in.
• Maximum height: 2.606 in.
• Bolt hole center to bolt hole center: 2.55 in. and 2.625 in.
• Mounting flange width: 0.402 in.

Product Details

Four Seasons 85021 is part of the Water Outlet line, a focused product line for engine coolant components. This engine coolant water outlet is designed as an OE-style replacement for cooling system service where the outlet housing is worn, corroded, or leaking. It cross-references Dayco 85021 for the same application. Fits 1991-1996 Ford Escort, 1991-1996 Mercury Tracer, 1990-1995 Mazda 323, 1990-1994 Mazda Protege, and 1992-1993 Mazda MX-3.

Common Problems This Part Addresses

• Coolant leaks at the outlet housing
• Corrosion or pitting in the aluminum coolant passage
• Damaged gasket sealing surfaces
• Cracked or warped thermostat housing-style outlet components
• Cooling system service needs on select Ford, Mazda, and Mercury models

Installation Notes and Tips

Confirm the vehicle uses an outlet-style coolant component without a thermostat before installation. Inspect the mating surface, replace any damaged seals or residue, and verify bolt-hole spacing and inlet diameter against the original part. This part number, 85021, is commonly searched for Ford Escort, Mercury Tracer, and Mazda 323 cooling system repairs.

Quality Assurance

Four Seasons states this part meets or exceeds OEM requirements. The aluminum construction and included gasket or seal support a proper replacement for coolant outlet service on the listed applications. Part number 85021 is also referenced in aftermarket interchange listings for the same fitment.