Dorman 902-5045 Engine Coolant Thermostat Housing
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Dorman

Dorman 902-5045 Engine Coolant Thermostat Housing

Brand Dorman 902-5045
Air Vent (Bleeder Valve) No
Bolts Included No
Color Natural
Gasket Or Seal Included Yes
Housing Neck Angle (┬░) 180
Material Metal
Mounting Hole Diameter 0.313
Mounting Hole Quantity 2
O Rings Included Not Required
Outlet Port Diameter 1.875
Package Contents Thermostat Housing with Gasket
Thermostat Included No
Fits Ford and Mazda · 14 vehicles

OE direct replacement. Matches stock fit and durability for straightforward replacement.

Metal construction. Built to handle extreme temperature changes for longer service life.

Thermostat housing with gasket included for a complete repair.

Cross-references Four Seasons 84864, 814864 and CH6045 for the same application. See all 4.

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Not what you need? See all Engine Coolant Thermostat Housing options

Engine Coolant Thermostat Housing for Ford and Mazda

Dorman 902-5045 is a replacement engine coolant thermostat housing built to match the fit and durability of the original housing on specified vehicles. It is made from metal and designed to handle repeated temperature swings in the cooling system.

Key Features

  • Metal construction with a natural finish
  • Includes gasket for sealing at installation
  • Outlet port diameter: 1.875 in.
  • Two mounting holes with 0.313 in. diameter
  • 180-degree housing neck angle
  • No bleeder valve; thermostat not included

Detailed Description

This Dorman thermostat housing, part number 902-5045, is engineered as a direct replacement for the factory engine coolant thermostat housing used on select Ford Probe, Mazda 626, and Mazda MX-6 models. The metal housing is built for cooling-system service where heat cycling and coolant exposure can wear out the original part. The included gasket helps create a proper seal at the housing interface, while the 1.875-inch outlet port and 180-degree neck angle support OE-style routing.

This part cross-references Four Seasons 84864 for the same application. It also cross-references 814864 and CH6045.

What It Helps Address

  • Coolant leaks at the thermostat housing
  • Cracked or corroded factory housing
  • Improper sealing at the thermostat housing flange
  • Cooling-system service on aging Ford Probe, Mazda 626, and Mazda MX-6 vehicles
  • Replacement of a worn housing during thermostat-related repairs

Installation Notes and Tips

Fits 1989-1992 Ford Probe, N/A. Fits 1988-1992 Mazda 626, N/A. Fits 1988-1992 Mazda MX-6, N/A. Verify the outlet size, mounting-hole layout, and neck angle against the original housing before installation. Clean the mating surfaces thoroughly and inspect the cooling system for related wear before reassembly. Thermostat and bolts are not included.

Quality Assurance

Dorman designs this replacement housing to match stock fit and durability on the listed applications and to withstand extreme temperature changes for extended service life.

Related reading

This part fits 14 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelTransmissionLitersCylindersPositionNotes
1992FordProbeAutomatic2.2LL4N/AEngine coolant thermostat housing for cooling system.
1992Mazda626Automatic2.2LL4N/AEngine coolant thermostat housing for cooling system.
1992MazdaMX-6Automatic2.2LL4N/AEngine coolant thermostat housing for cooling system.
1991FordProbeAutomatic2.2LL4N/AEngine coolant thermostat housing for cooling system.
1991Mazda626Automatic2.2LL4N/AEngine coolant thermostat housing for cooling system.
1991MazdaMX-6Automatic2.2LL4N/AEngine coolant thermostat housing for cooling system.
1990FordProbeAutomatic2.2LL4N/AEngine coolant thermostat housing for cooling system.
1990Mazda626Automatic2.2LL4N/AEngine coolant thermostat housing for cooling system.
1990MazdaMX-6Automatic2.2LL4N/AEngine coolant thermostat housing for cooling system.
1989FordProbeAutomatic2.2LL4N/AEngine coolant thermostat housing for cooling system.
1989Mazda626Automatic2.2LL4N/AEngine coolant thermostat housing for cooling system.
1989MazdaMX-6Automatic2.2LL4N/AEngine coolant thermostat housing for cooling system.
1988Mazda626Automatic2.2LL4N/AEngine coolant thermostat housing for cooling system.
1988MazdaMX-6Automatic2.2LL4N/AEngine coolant thermostat housing for cooling system.
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Four Seasons — 84864814864CH6045E92Z8592B