Dorman 902-5116 Engine Coolant Thermostat Housing
OE Quality 60-Day Returns
Dorman

Dorman 902-5116 Engine Coolant Thermostat Housing

Brand Dorman 902-5116
Material Metal
Color Natural
Outlet Port Diameter 4.445
Height 1.611
Gasket Or Seal Included No
Mounting Hole Quantity 2
Bolt Hole Center To Bolt Hole Center 3.133
Inlet Port Diameter 1.51
Flange Thickness 0.212
Mounting Hole Diameter 0.266
Air Vent (Bleeder Valve) No
Bolts Included No
O Rings Included No
Package Contents 1 thermostat housing
Thermostat Included No
Fits Acura · 24 vehicles

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

Metal construction. Built to handle extreme temperature changes.

Thermostat housing. Direct replacement for the cooling system housing.

Cross-references Dorman - Conduct-Tite 85308, 19311PR7A00 and 815618 for the same application. See all 4.

$30.75Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $30.75
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

Dorman 902-5116 Thermostat Housing for Acura NSX

This Dorman engine coolant thermostat housing is a direct replacement for select Acura NSX cooling system applications. Built from metal with a natural finish, it is engineered to match the fit and durability of the original housing while handling repeated temperature swings in daily driving and high-heat operation.

  • Metal thermostat housing with a natural finish
  • Matches stock fit and mounting layout for select Acura NSX models
  • 2 mounting holes with 3.133 in. bolt hole center spacing
  • Outlet port diameter: 4.445 in.; inlet port diameter: 1.51 in.
  • Flange thickness: 0.212 in.; height: 1.611 in.
  • No gasket or seal, thermostat, bolts, O-rings, or bleeder valve included

Detailed Product Overview

Part number 902-5116 is an engine coolant thermostat housing designed for 1991-2005 Acura NSX cooling system service. It is a metal replacement housing that follows the original mounting pattern and port dimensions, making it a practical choice when replacing a cracked, warped, or corroded thermostat housing on an Acura NSX. This part cross-references Dorman - Conduct-Tite 85308 for the same application.

For Acura NSX owners searching for a thermostat housing replacement, Dorman 902-5116 provides the correct housing shape and connection points needed to restore coolant routing at the thermostat location. The natural metal construction is built to withstand extreme temperature changes, helping maintain service life in demanding engine bay conditions.

What This Part Helps Address

  • Coolant leaks from a damaged thermostat housing
  • Warped or corroded housing surfaces that prevent a proper seal
  • Improper coolant flow caused by a failing housing assembly
  • Cooling system service on 1991-2005 Acura NSX models
  • Replacement of an original thermostat housing with matching fitment

Installation Notes and Tips

Fits 1991-2005 Acura NSX, N/A. Verify port diameter, bolt spacing, and mounting-hole alignment before installation. Transfer or source the thermostat, gasket or seal, bolts, and O-rings separately as needed, since they are not included with this housing. Clean the mating surfaces thoroughly and inspect adjacent cooling system components before reassembly.

Quality Assurance

Dorman designs this replacement thermostat housing to match the fit and durability of the stock part on specified vehicles. The metal construction and temperature-resistant design support reliable cooling system service on Acura NSX applications.

Related reading

This part fits 24 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
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.
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dorman - Conduct-Tite — 8530819311PR7A00815618CH5308