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Motorad 639-180 Engine Coolant Thermostat Housing Assembly
| Brand | Motorad 639-180 |
|---|---|
| Bleeder Hole | Yes |
| Bolt Hole Quantity | 3 |
| Bolts Included | Yes |
| Color | Silver |
| Gasket or Seal included | Yes |
| Gasket/Seal Material | Metal |
| Gasket/Seal Material | Metal |
| Hardware included | Yes |
| Installation Tool Included | No |
| Jiggle Pin Included | Yes |
| Material | Aluminum, stainless steel, copper |
| Mounting Hardware Included | Yes |
| Number Of Bolt Holes | 3 |
| Number Of Outlet Ports | 1 |
| Number Of Seals | 0 |
| Opening Temperature | 180 |
| Outlet Diameter | 1.10 in |
| Start to Open Temperature | 180 deg. f |
| Temperature | 180 deg. f |
| Temperature (Degree) | 180 |
| Product line | Integrated Housing Thermostat |
| Fits | Cadillac, Chevrolet, and Pontiac · 9 vehicles |
OE-supplier quality. Built with OEM specifications and safety standards for cooling-system service.
Integrated housing design. Thermostat, housing, and seal are combined for a streamlined replacement.
Air relief features. Bleeder hole and jiggle pin help purge trapped air during coolant service.
Cross-references Continental 63980, Dorman - HELP 56398 and Dorman - OE Solutions 902-2093 for the same application. See all 11.
Integrated thermostat housing assembly
This Motorad Integrated Housing Thermostat is an OE-supplier style coolant control component built to match OEM specifications and processes. It is set to open at 180 degrees F and uses an integrated housing design for a direct cooling-system service replacement.
- 180 degree F opening temperature for OE-specified coolant control
- Bleeder hole and jiggle pin for air relief during service
- Aluminum, stainless steel, and copper construction
- Metal gasket/seal material with included seal and hardware
- Three-bolt housing with one outlet port
Fitment and application details
Compatible with 2012-2017 Chevrolet Caprice, N/A; 2015 Cadillac CTS, N/A; and 2008-2009 Pontiac G8, N/A. Fits 2012-2017 Chevrolet Caprice, N/A. Fits 2015 Cadillac CTS, N/A. Fits 2008-2009 Pontiac G8, N/A. Part number 639-180 appears in OE-style cross references for the same application, including Continental 63980 and Dorman - OE Solutions 902-2093.
What this part helps address
- Coolant temperature regulation that no longer matches the specified opening point
- Air trapped in the cooling system after thermostat service
- Housing wear, seal deterioration, or coolant seepage at the thermostat assembly
- Service replacement needs for an integrated thermostat and housing unit
Installation notes and quality
Verify the 180 degree F specification, three-bolt pattern, and 1.10 in outlet diameter before installation. The bleeder hole, air relief valve, and OEM-style seals support proper coolant bleeding and sealing during service. Motorad manufactures this part with OEM quality materials and safety standards as an OE supplier, and part number 639-180 is built to OEM specifications.
| Year | Make | Model | Liters | Cylinders | Notes |
|---|---|---|---|---|---|
| 2017 | Chevrolet | Caprice | 3.6L | V6 | Temperature of 180F; Includes thermostat, housing, and gasket; OE specified temperature; Integrated Housing Thermostat |
| 2016 | Chevrolet | Caprice | 3.6L | V6 | Temperature of 180F; Includes thermostat, housing, and gasket; OE specified temperature; Integrated Housing Thermostat |
| 2015 | Cadillac | CTS | 6.2L | V8 | Temperature of 180F; Includes thermostat, housing, and gasket; OE specified temperature; Integrated Housing Thermostat |
| 2015 | Chevrolet | Caprice | 3.6L | V6 | Temperature of 180F; Includes thermostat, housing, and gasket; OE specified temperature; Integrated Housing Thermostat |
| 2014 | Chevrolet | Caprice | 3.6L | V6 | Temperature of 180F; Includes thermostat, housing, and gasket; OE specified temperature; Integrated Housing Thermostat |
| 2013 | Chevrolet | Caprice | 3.6L | V6 | Temperature of 180F; Includes thermostat, housing, and gasket; OE specified temperature; Integrated Housing Thermostat |
| 2012 | Chevrolet | Caprice | 3.6L | V6 | Temperature of 180F; Includes thermostat, housing, and gasket; OE specified temperature; Integrated Housing Thermostat |
| 2009 | Pontiac | G8 | 3.6L | V6 | Temperature of 180F; Includes thermostat, housing, and gasket; OE specified temperature; Integrated Housing Thermostat |
| 2008 | Pontiac | G8 | 3.6L | V6 | Temperature of 180F; Includes thermostat, housing, and gasket; OE specified temperature; Integrated Housing Thermostat |
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