HomeBelts and Cooling > Thermostat and HousingDorman 902-5051 Engine Coolant Thermostat Housing
Part #: 902-5051

Dorman 902-5051 Engine Coolant Thermostat Housing

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⚙️ 11 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Mitsubishi and Dodge, Mighty Max and Ram 50
🔄Easy Returns — Return within 60 days for a full refund
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Overview of Dorman Engine Coolant Thermostat Housing 902-5051

The Dorman 902-5051 engine coolant thermostat housing is designed for reliable cooling system performance in Dodge Mighty Max and Mitsubishi Ram 50 vehicles. Constructed from durable metal with a natural finish, this thermostat housing includes a gasket and features a 90-degree housing neck angle for precise fitment.

  • Material: Metal construction for durability and heat resistance
  • Color: Natural metal finish
  • Outlet port diameter: 1.313 inches
  • Includes gasket for a secure seal
  • Two mounting holes with 0.313-inch diameter each
  • Equipped with an air vent (bleeder valve) to prevent airlocks
  • Housing neck angle: 90 degrees for proper coolant flow
  • Bolts not included
  • O-rings not required
  • Package contains thermostat housing with gasket only; thermostat not included

Detailed Product Description

The Dorman 902-5051 engine coolant thermostat housing is engineered to meet the specifications of Dodge Mighty Max and Mitsubishi Ram 50 models. Its metal construction ensures resistance to corrosion and thermal stress, maintaining the integrity of the cooling system. The natural finish preserves the housing’s durability while providing a clean, OEM-style appearance. The 1.313-inch outlet port diameter and 90-degree neck angle facilitate efficient coolant flow, while the included gasket ensures a tight seal to prevent leaks. The housing features two mounting holes sized at 0.313 inches in diameter for secure installation. Additionally, the built-in air vent (bleeder valve) helps eliminate trapped air, reducing the risk of overheating and improving overall engine performance.

Compatible Vehicles and Common Applications

  • Designed specifically for Dodge Mighty Max models requiring a 90-degree thermostat housing
  • Compatible with Mitsubishi Ram 50 vehicles with matching thermostat housing specifications
  • Replaces worn or damaged thermostat housings to restore proper coolant circulation
  • Addresses coolant leaks around the thermostat housing area
  • Helps resolve engine overheating caused by faulty or cracked thermostat housings

Installation Notes and Tips

  • Ensure the engine is cool before beginning installation to avoid burns
  • Remove old thermostat housing and clean mounting surface thoroughly
  • Use the included gasket to create a proper seal; do not reuse old gaskets
  • Check mounting holes and hardware compatibility; bolts are not included with this part
  • Verify the air vent (bleeder valve) is unobstructed to allow proper air release

Quality Assurance and Warranty

Dorman manufactures the 902-5051 thermostat housing to meet or exceed OEM standards for fit, form, and function. The metal construction and precise engineering contribute to long-lasting performance in demanding engine environments. This part is backed by Dorman’s limited warranty, providing coverage against defects in material and workmanship under normal use conditions.

BrandDorman
Part Number902-5051
Air Vent (Bleeder Valve)Yes
Bolts IncludedNo
ColorNatural
Gasket Or Seal IncludedYes
Housing Neck Angle (┬░)90
MaterialMetal
Mounting Hole Diameter0.313
Mounting Hole Quantity2
O Rings IncludedNot Required
Outlet Port Diameter1.313
Package ContentsThermostat Housing with Gasket
Thermostat IncludedNo

This part fits 11 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1996MitsubishiMighty Max2.4LL4N/AEngine coolant thermostat housing for cooling system.
1995MitsubishiMighty Max2.4LL4N/AEngine coolant thermostat housing for cooling system.
1994MitsubishiMighty Max2.4LL4N/AEngine coolant thermostat housing for cooling system.
1993DodgeRam 502.4LL4N/AEngine coolant thermostat housing for cooling system.
1993MitsubishiMighty Max2.4LL4N/AEngine coolant thermostat housing for cooling system.
1992DodgeRam 502.4LL4N/AEngine coolant thermostat housing for cooling system.
1992MitsubishiMighty Max2.4LL4N/AEngine coolant thermostat housing for cooling system.
1991DodgeRam 502.4LL4N/AEngine coolant thermostat housing for cooling system.
1991MitsubishiMighty Max2.4LL4N/AEngine coolant thermostat housing for cooling system.
1990DodgeRam 502.4LL4N/AEngine coolant thermostat housing for cooling system.
1990MitsubishiMighty Max2.4LL4N/AEngine coolant thermostat housing for cooling system.

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

81512285122CH6051MD143188

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.