Dorman 902-6135 Engine Coolant Thermostat Housing
OE Quality 60-Day Returns
Dorman

Dorman 902-6135 Engine Coolant Thermostat Housing

Brand Dorman 902-6135
Air Vent (Bleeder Valve) No
Bolt Hole Center To Bolt Hole Center 2.01
Bolts Included No
Color Natural
Flange Thickness 0.38
Gasket Or Seal Included No
Height 4.02
Inlet Port Diameter 1.32
Material Aluminum
Mounting Hole Diameter 0.34
Mounting Hole Quantity 2
O Rings Included No
Outlet Port Diameter 1.37
Package Contents 1 Thermostat Housing
Thermostat Included No
Fits Ford · 4 vehicles

OE-style replacement. Engineered to match stock fit and durability.

Aluminum construction. Built to handle extreme temperature changes.

Thermostat housing. Replacement housing for the cooling system.

Cross-references Dayco 85031 and F0TZ8592B for the same application. See all 2.

$42.72Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Step 2 — Quantity
Order total $42.72
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Engine Coolant Thermostat Housing options

Engine Coolant Thermostat Housing for Ford Ranger

Dorman 902-6135 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 aluminum with a natural finish and is shaped for the cooling system on 1990-1991 Ford Ranger 2.3L applications.

  • Aluminum construction for strength and heat resistance
  • Natural finish housing for a direct replacement appearance
  • 2 mounting holes with 2.01 in. bolt hole center spacing
  • Inlet port diameter: 1.32 in.; outlet port diameter: 1.37 in.
  • Flange thickness: 0.38 in.; housing height: 4.02 in.
  • No thermostat, gasket, O-rings, bleeder valve, or bolts included

Detailed Product Overview

This Dorman thermostat housing is engineered for the cooling system on Ford Ranger models equipped with the 2.3L engine. Part number 902-6135 follows the original housing layout to support proper coolant routing at the thermostat location, helping maintain a secure seal surface and correct hose connection points. It also cross-references Ford F0TZ8592B and Dayco 85031 for the same application.

What This Part Helps Address

  • Cracked or warped thermostat housing
  • Coolant leaks at the housing flange or hose ports
  • Corrosion or deterioration in the original aluminum housing
  • Improper thermostat housing fit on 1990-1991 Ford Ranger 2.3L cooling systems
  • Cooling system service needs when replacing a damaged housing

Installation Notes and Tips

Verify the inlet and outlet port sizes, mounting hole spacing, and engine application before installation. Clean the mating surfaces thoroughly and inspect the thermostat, gasket, and seals separately, since this housing does not include those components. Confirm hose condition and clamp fit during reassembly to help prevent leaks.

Quality Assurance

Dorman designs this replacement housing to match stock fit and durability requirements for the listed Ford Ranger applications. The aluminum construction is selected to handle repeated temperature changes in the cooling system.

Related reading

This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
1991FordRanger——N/ACover; 2.3L
1991FordRanger2.3LL4N/AEngine coolant thermostat housing for cooling system.
1990FordRanger——N/ACover; 2.3L
1990FordRanger2.3LL4N/AEngine coolant thermostat housing for cooling system.
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dayco — 85031F0TZ8592B