Dorman 902-2080 Engine Coolant Thermostat Housing Assembly

Brand Dorman 902-2080
Material Plastic
Color Black
Inside Diameter 1.243
Mounting Hardware Included No
Grade Type Regular
Gasket Or Seal Included Yes
Mounting Hole Quantity 3
Gasket Type Gasket
Flange Length 2.65
Flange Thickness 0.4
Flange Width 3.095
Outlet Port Quantity 1
Bleeder Hole No
Bolt Hole Center To Bolt Hole Center 2.65 in; 2.07 in; 2.72 in
Package Contents 1 thermostat housing; 1 gasket; 1 sensor; 1 thermostat
Thermostat Included Yes
Thermostat Opening Temperature 176 deg. f.
Fits Cadillac and Chevrolet · 8 vehicles

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

Plastic housing. Black construction helps resist extreme temperature changes.

Gasket included. Comes with a seal for a complete thermostat housing assembly.

Cross-references Dayco 86116, Motorad 797-176 and 79776 for the same application. See all 4.

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Engine Coolant Thermostat Housing Assembly

Dorman 902-2080 is a replacement engine coolant thermostat housing assembly built to match the fit and durability of the original housing on specified vehicles. It is made from black plastic and includes a gasket, sensor, and thermostat for a direct replacement on select Chevrolet Volt and Cadillac ELR applications.

Key Features

  • Replacement engine coolant thermostat housing assembly for select GM applications
  • Black plastic housing with a gasket seal included
  • Includes thermostat and sensor in the package contents
  • Thermostat opening temperature: 176 Deg. F.
  • Three mounting holes and one outlet port
  • Designed to handle repeated temperature swings in the cooling system

Detailed Description

This Dorman thermostat housing assembly, part number 902-2080, is engineered for vehicles that use an integrated cover design. It is a direct-fit cooling system component for 2011-2015 Chevrolet Volt and 2014-2016 Cadillac ELR models, helping restore proper coolant flow control and thermostat housing sealing. The housing measures with a 1.243 inside diameter and uses a gasket-style seal to support a secure installation. This part cross-references Dayco 86116 for the same application.

What It Helps Fix

  • Coolant leaks at the thermostat housing
  • Cracked or heat-damaged plastic housing
  • Improper thermostat operation affecting engine temperature control
  • Fault codes or drivability concerns related to the coolant temperature sensor area
  • Sealing issues at the housing-to-engine connection

Installation Notes and Tips

Verify the vehicle application before installation. This thermostat housing assembly uses three mounting holes and includes a gasket, thermostat, and sensor, but mounting hardware is not included. Clean the mating surfaces thoroughly and inspect the cooling system for contamination or damaged connectors before reassembly. For fitment reference, this part fits 2011-2015 Chevrolet Volt and 2014-2016 Cadillac ELR, N/A.

Quality Assurance

Dorman designs this replacement thermostat housing assembly to match the fit and durability of the stock housing assembly on the listed vehicles. The construction is intended to withstand extreme temperature changes for extended service life.

This part fits 8 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2016CadillacELR1.4LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2015CadillacELR1.4LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2015ChevroletVolt1.4LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2014CadillacELR1.4LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2014ChevroletVolt1.4LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2013ChevroletVolt1.4LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2012ChevroletVolt1.4LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2011ChevroletVolt1.4LL4N/AEngine coolant thermostat housing assembly with integrated cover.
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dayco — 86116Motorad — 797-1767977625200456