HomeBelts and Cooling > Thermostat and HousingDorman 902-5116 Engine Coolant Thermostat Housing
Part #: 902-5116

Dorman 902-5116 Engine Coolant Thermostat Housing

⚙️ 24 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$28.09Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Acura, NSX
🔄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

The Dorman 902-5116 engine coolant thermostat housing is designed specifically for Acura NSX models. Crafted from durable metal with a natural finish, this thermostat housing ensures reliable performance in your vehicle's cooling system.

  • Constructed from sturdy metal material for durability
  • Natural color finish for corrosion resistance
  • Outlet port diameter: 4.445 inches
  • Inlet port diameter: 1.51 inches
  • Height measures 1.611 inches for precise fitment
  • Includes two mounting holes with 0.266 inch diameter each
  • Bolt hole center-to-center distance of 3.133 inches
  • Flange thickness of 0.212 inches for secure sealing
  • Does not include thermostat, gasket, bolts, or O-rings

Detailed Product Description

The Dorman 902-5116 thermostat housing is engineered to meet the exact specifications required for Acura NSX vehicles. Its metal construction provides strength and resistance to heat and pressure within the engine cooling system. The housing features a natural finish that helps prevent corrosion over time. With precise dimensions such as a 4.445 inch outlet port diameter and a 1.51 inch inlet port diameter, this part ensures proper coolant flow and system integrity. The two mounting holes spaced 3.133 inches apart allow for secure attachment to the engine block. Note that this housing does not include the thermostat or sealing components, so these should be sourced separately during installation.

Compatible Vehicles and Common Applications

  • Replacement for damaged or cracked thermostat housing on Acura NSX
  • Addresses coolant leaks caused by housing wear or corrosion
  • Resolves overheating issues related to faulty thermostat housing
  • Used when upgrading or restoring the engine cooling system
  • Suitable for maintenance requiring removal of the original housing

Installation Notes and Tips

When installing the Dorman 902-5116 thermostat housing on an Acura NSX, ensure the mating surfaces are clean and free of old gasket material. Since this housing does not include a gasket or O-rings, use appropriate sealing components recommended for your vehicle. Tighten mounting bolts evenly to the manufacturer’s torque specifications to prevent leaks. Inspect the thermostat separately and replace if necessary to maintain optimal cooling system performance.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. While this product does not include a thermostat or seals, it is built to provide reliable service within the engine cooling system of Acura NSX vehicles. Please refer to Dorman’s warranty policy for specific coverage details.

BrandDorman
Part Number902-5116
MaterialMetal
ColorNatural
Outlet Port Diameter4.445
Height1.611
Gasket Or Seal IncludedNo
Mounting Hole Quantity2
Bolt Hole Center To Bolt Hole Center3.133
Inlet Port Diameter1.51
Flange Thickness0.212
Mounting Hole Diameter0.266
Air Vent (Bleeder Valve)No
Bolts IncludedNo
O Rings IncludedNo
Package Contents1 thermostat housing
Thermostat IncludedNo

This part fits 24 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2005AcuraNSX3.0LV6N/AEngine coolant thermostat housing for cooling system.
2005AcuraNSX3.2LV6N/AEngine coolant thermostat housing for cooling system.
2004AcuraNSX3.0LV6N/AEngine coolant thermostat housing for cooling system.
2004AcuraNSX3.2LV6N/AEngine coolant thermostat housing for cooling system.
2003AcuraNSX3.0LV6N/AEngine coolant thermostat housing for cooling system.
2003AcuraNSX3.2LV6N/AEngine coolant thermostat housing for cooling system.
2002AcuraNSX3.0LV6N/AEngine coolant thermostat housing for cooling system.
2002AcuraNSX3.2LV6N/AEngine coolant thermostat housing for cooling system.
2001AcuraNSX3.0LV6N/AEngine coolant thermostat housing for cooling system.
2001AcuraNSX3.2LV6N/AEngine coolant thermostat housing for cooling system.
2000AcuraNSX3.0LV6N/AEngine coolant thermostat housing for cooling system.
2000AcuraNSX3.2LV6N/AEngine coolant thermostat housing for cooling system.
1999AcuraNSX3.0LV6N/AEngine coolant thermostat housing for cooling system.
1999AcuraNSX3.2LV6N/AEngine coolant thermostat housing for cooling system.
1998AcuraNSX3.0LV6N/AEngine coolant thermostat housing for cooling system.
1998AcuraNSX3.2LV6N/AEngine coolant thermostat housing for cooling system.
1997AcuraNSX3.0LV6N/AEngine coolant thermostat housing for cooling system.
1997AcuraNSX3.2LV6N/AEngine coolant thermostat housing for cooling system.
1996AcuraNSX3.0LV6N/AEngine coolant thermostat housing for cooling system.
1995AcuraNSX3.0LV6N/AEngine coolant thermostat housing for cooling system.
1994AcuraNSX3.0LV6N/AEngine coolant thermostat housing for cooling system.
1993AcuraNSX3.0LV6N/AEngine coolant thermostat housing for cooling system.
1992AcuraNSX3.0LV6N/AEngine coolant thermostat housing for cooling system.
1991AcuraNSX3.0LV6N/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:

19311PR7A0081561885308CH5308

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