Dorman 902-808 Engine Coolant Thermostat Housing Assembly - Water Pump

Brand Dorman 902-808
Position Water Pump
Bleeder Hole No
Bolt Hole Center To Bolt Hole Center 2.21 in; 2.73in; 2.83 in
Color Black
Flange Length 3.47
Flange Thickness 0.4
Flange Width 2.65
Gasket Or Seal Included Yes
Gasket Type Gasket
Grade Type Regular
Inside Diameter 1.24 in; 0.58 in
Material Plastic
Mounting Hardware Included No
Mounting Hole Quantity 3
Outlet Port Quantity 1
Package Contents 1 Thermostat Housing; 1 Thermostat; Integrated 1 Sensor; Gasket
Thermostat Included Yes
Thermostat Opening Temperature 221 Deg. F.
Fits Buick and Chevrolet · 33 vehicles

OE-style replacement. Matches the stock housing assembly for fit and durability.

Heat-resistant design. Built to withstand extreme temperature changes for longer service life.

Gasket included. Comes with a gasket for a tighter, ready-to-install seal.

Cross-references Continental 49392, Four Seasons 73021 and Four Seasons 85993 for the same application. See all 8.

$51.38Free 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 $51.38
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Dorman 902-808 Thermostat Housing Assembly

Dorman 902-808 is an engine coolant thermostat housing assembly built for specified Buick Encore, Chevrolet Trax, Chevrolet Sonic, Chevrolet Cruze Limited, and Chevrolet Cruze applications. It matches the original housing’s fit and durability requirements and is made to handle repeated temperature swings in the cooling system.

Key Features

  • Plastic housing in black finish
  • Includes gasket and thermostat
  • Integrated sensor included in the package contents
  • Three mounting holes with one outlet port
  • Designed for the water pump position on listed applications
  • Thermostat opening temperature: 221 degrees F
  • Direct replacement for Dorman 902-808 applications

Detailed Description

This thermostat housing assembly is engineered as a replacement for the stock engine coolant thermostat housing assembly on select GM small-car platforms. It is built from plastic and uses a gasket-style seal to support a secure connection in the cooling circuit. The integrated thermostat and sensor help restore proper coolant flow control and temperature monitoring on vehicles such as the Chevrolet Cruze, Chevrolet Sonic, Buick Encore, and Chevrolet Trax. This part cross-references Gates 34709 for the same application.

What It Helps Fix

  • Coolant leaks at the thermostat housing
  • Cracked or warped plastic housing surfaces
  • Improper engine operating temperature
  • Faulty thermostat-related cooling performance
  • Sensor-related cooling system warning concerns

Installation Notes and Tips

Verify the vehicle’s year, make, model, and water pump application before installation. Inspect the mating surfaces, replace worn coolant seals as needed, and confirm the thermostat housing is seated evenly before tightening fasteners to specification. After installation, refill and bleed the cooling system according to the vehicle service procedure.

Quality Assurance

Dorman designs this replacement housing to match the fit and durability of the original assembly and to withstand extreme temperature changes for extended service life. Dorman 902-808 is built for direct replacement use on the listed applications.

Compatible Vehicles

  • Fits 2013-2021 Buick Encore, Water Pump
  • Fits 2013-2021 Chevrolet Trax, Water Pump
  • Fits 2012-2020 Chevrolet Sonic, Water Pump
  • Fits 2016 Chevrolet Cruze Limited, Water Pump
  • Fits 2011-2015 Chevrolet Cruze, Water Pump
This part fits 33 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2021BuickEncore1.4LL4Water PumpEngine coolant thermostat housing assembly with integrated cover.
2021ChevroletTrax1.4LL4Water PumpEngine coolant thermostat housing assembly with integrated cover.
2020BuickEncore1.4LL4Water PumpEngine coolant thermostat housing assembly with integrated cover.
2020ChevroletSonic1.4LL4Water PumpEngine coolant thermostat housing assembly with integrated cover.
2020ChevroletTrax1.4LL4Water PumpEngine coolant thermostat housing assembly with integrated cover.
2019BuickEncore1.4LL4Water PumpEngine coolant thermostat housing assembly with integrated cover.
2019ChevroletSonic1.4LL4Water PumpEngine coolant thermostat housing assembly with integrated cover.
2019ChevroletTrax1.4LL4Water PumpEngine coolant thermostat housing assembly with integrated cover.
2018BuickEncore1.4LL4Water PumpEngine coolant thermostat housing assembly with integrated cover.
2018ChevroletSonic1.4LL4Water PumpEngine coolant thermostat housing assembly with integrated cover.
2018ChevroletTrax1.4LL4Water PumpEngine coolant thermostat housing assembly with integrated cover.
2017BuickEncore1.4LL4Water PumpEngine coolant thermostat housing assembly with integrated cover.
2017ChevroletSonic1.4LL4Water PumpEngine coolant thermostat housing assembly with integrated cover.
2017ChevroletTrax1.4LL4Water PumpEngine coolant thermostat housing assembly with integrated cover.
2016BuickEncore1.4LL4Water PumpEngine coolant thermostat housing assembly with integrated cover.
2016ChevroletCruze Limited1.4LL4Water PumpEngine coolant thermostat housing assembly with integrated cover.
2016ChevroletSonic1.4LL4Water PumpEngine coolant thermostat housing assembly with integrated cover.
2016ChevroletTrax1.4LL4Water PumpEngine coolant thermostat housing assembly with integrated cover.
2015BuickEncore1.4LL4Water PumpEngine coolant thermostat housing assembly with integrated cover.
2015ChevroletCruze1.4LL4Water PumpEngine coolant thermostat housing assembly with integrated cover.
2015ChevroletSonic1.4LL4Water PumpEngine coolant thermostat housing assembly with integrated cover.
2015ChevroletTrax1.4LL4Water PumpEngine coolant thermostat housing assembly with integrated cover.
2014BuickEncore1.4LL4Water PumpEngine coolant thermostat housing assembly with integrated cover.
2014ChevroletCruze1.4LL4Water PumpEngine coolant thermostat housing assembly with integrated cover.
2014ChevroletSonic1.4LL4Water PumpEngine coolant thermostat housing assembly with integrated cover.
2014ChevroletTrax1.4LL4Water PumpEngine coolant thermostat housing assembly with integrated cover.
2013BuickEncore1.4LL4Water PumpEngine coolant thermostat housing assembly with integrated cover.
2013ChevroletCruze1.4LL4Water PumpEngine coolant thermostat housing assembly with integrated cover.
2013ChevroletSonic1.4LL4Water PumpEngine coolant thermostat housing assembly with integrated cover.
2013ChevroletTrax1.4LL4Water PumpEngine coolant thermostat housing assembly with integrated cover.
2012ChevroletCruze1.4LL4Water PumpEngine coolant thermostat housing assembly with integrated cover.
2012ChevroletSonic1.4LL4Water PumpEngine coolant thermostat housing assembly with integrated cover.
2011ChevroletCruze1.4LL4Water PumpEngine coolant thermostat housing assembly with integrated cover.
Directly replaces or cross-references 8 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Continental — 49392Four Seasons — 73021Four Seasons — 85993Gates — 34709Motorad — 730-221SKP — SK90280890280825200455