HomeBelts and Cooling > Thermostat and HousingDorman 902-5953 Engine Coolant Thermostat Housing Assembly
Part #: 902-5953

Dorman 902-5953 Engine Coolant Thermostat Housing Assembly

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⚙️ 14 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: Acura, MDX, RLX, and TLX
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Dorman Engine Coolant Thermostat Housing Assembly

The Dorman 902-5953 Engine Coolant Thermostat Housing Assembly is designed specifically for Acura MDX, RLX, and TLX models. This assembly includes a thermostat, housing, and gasket to ensure proper engine temperature regulation and cooling system performance.

  • Material: Durable black plastic construction
  • Includes thermostat with 170°F opening temperature
  • Comes with a gasket for a secure seal
  • Features one outlet port and a bleeder hole for air release
  • Mounting hardware not included; designed with three mounting holes
  • Flange dimensions: 3.972 inches length and width, 0.272 inches thickness
  • Multiple bolt hole center measurements for precise fitment

Detailed Product Description

The Dorman 902-5953 thermostat housing assembly is engineered to meet the cooling system requirements of Acura MDX, RLX, and TLX vehicles. Constructed from high-quality plastic, the housing offers resistance to corrosion and heat, contributing to long-term durability. The included thermostat opens at 170 degrees Fahrenheit, helping maintain optimal engine temperature and preventing overheating. The assembly features a gasket to ensure a tight seal between the housing and engine block, reducing the risk of coolant leaks. Additionally, the bleeder hole allows trapped air to escape, improving coolant flow and system efficiency.

Compatible Vehicles and Common Applications

  • Replacement for thermostat housing assembly in Acura MDX models
  • Suitable for Acura RLX cooling system repairs
  • Compatible with Acura TLX engine coolant thermostat housing needs
  • Addresses issues such as coolant leaks, engine overheating, and thermostat failure
  • Helps restore proper coolant flow and temperature regulation

Installation Notes and Tips

When installing the Dorman 902-5953 thermostat housing assembly, ensure the engine is cool before beginning work. Remove the old thermostat housing carefully to avoid damaging surrounding components. Clean the mounting surface thoroughly before placing the new gasket and housing. Since mounting hardware is not included, reuse the original bolts or acquire appropriate replacements. Verify the thermostat orientation and confirm the bleeder hole is positioned correctly to allow air release. After installation, refill the cooling system and bleed air to prevent overheating.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM specifications for fit and function. The 902-5953 thermostat housing assembly undergoes quality checks to ensure reliable performance in Acura MDX, RLX, and TLX vehicles. This product includes a gasket and thermostat to provide a complete solution for cooling system maintenance. Please refer to Dorman's warranty policy for specific coverage details.

BrandDorman
Part Number902-5953
Bleeder HoleYes
Bolt Hole Center To Bolt Hole Center2.226
Bolt Hole Center To Bolt Hole Center2.293
Bolt Hole Center To Bolt Hole Center2.853
ColorBlack
Flange Length3.972
Flange Thickness0.272
Flange Width3.972
Gasket Or Seal IncludedYes
Gasket TypeGasket
Grade TypeRegular
Inside Diameter1.039
MaterialPlastic
Mounting Hardware IncludedNo
Mounting Hole Quantity3
Outlet Port Quantity1
Package Contents1 Gasket; 1 Thermostat Housing; 1 Thermostat
Thermostat IncludedYes
Thermostat Opening Temperature170 Deg. F

This part fits 14 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2020AcuraMDX3.5LV6N/AEngine coolant thermostat housing assembly with integrated cover.
2020AcuraRLX3.5LV6GASN/AEngine coolant thermostat housing assembly with integrated cover.
2020AcuraTLX3.5LV6N/AEngine coolant thermostat housing assembly with integrated cover.
2019AcuraMDX3.5LV6N/AEngine coolant thermostat housing assembly with integrated cover.
2019AcuraRLX3.5LV6GASN/AEngine coolant thermostat housing assembly with integrated cover.
2019AcuraTLX3.5LV6N/AEngine coolant thermostat housing assembly with integrated cover.
2018AcuraMDX3.5LV6N/AEngine coolant thermostat housing assembly with integrated cover.
2018AcuraRLX3.5LV6GASN/AEngine coolant thermostat housing assembly with integrated cover.
2018AcuraTLX3.5LV6N/AEngine coolant thermostat housing assembly with integrated cover.
2017AcuraMDX3.5LV6N/AEngine coolant thermostat housing assembly with integrated cover.
2017AcuraTLX3.5LV6N/AEngine coolant thermostat housing assembly with integrated cover.
2016AcuraMDX3.5LV6N/AEngine coolant thermostat housing assembly with integrated cover.
2016AcuraTLX3.5LV6N/AEngine coolant thermostat housing assembly with integrated cover.
2015AcuraTLX3.5LV6N/AEngine coolant thermostat housing assembly with integrated cover.

* 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:

193155J2A01951-172

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