Motorad
Integrated Housing Thermostat

Motorad 324-185 Engine Coolant Thermostat Housing Assembly

Brand Motorad 324-185
Bleeder Hole Yes
Bolts Included No
Color Silver
Gasket or Seal included Yes
Gasket/Seal Material Rubber
Gasket/Seal Material Rubber
Hardware included No
Installation Tool Included No
Jiggle Pin Included Yes
Material Aluminum, Stainless Steel, Copper
Mounting Hardware Included No
Number Of Bolt Holes 2
Number Of Outlet Ports 1
Number Of Seals 1
Opening Temperature 185
Outlet Diameter 1.23 in
Start to Open Temperature 185 Deg. F
Temperature 185 Deg. F
Temperature (Degree) 185
Product line Integrated Housing Thermostat
Fits Saturn · 74 vehicles

OE supplier quality. Made with OEM materials and processes for dependable cooling performance.

Rapid temperature response. Copper case and wax compound react quickly to coolant changes.

Sealed and ready. Includes an OEM-style rubber seal and air relief valve.

Cross-references Anchor 3178, Bosch 15178 and Carlson 14279 for the same application. See all 16.

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Integrated Housing Thermostat for Saturn Cooling Systems

Motorad 324-185 is an integrated housing thermostat assembly built for Saturn cooling system service. It combines the thermostat, housing, and seal in an OE-style layout for direct replacement on select Saturn SC1, SC2, SL, SL1, SL2, SW1, SW2, and SC applications.

With a 185 Deg. F opening temperature, this Motorad Integrated Housing Thermostat is suited for drivers searching for a Saturn SC1 thermostat housing assembly, Saturn SL coolant thermostat housing, or a 185 degree thermostat replacement for Saturn cooling repair.

Key Features

  • Part number: 324-185
  • Integrated thermostat housing assembly for simplified cooling system service
  • 185 Deg. F start-to-open temperature
  • Bleeder hole and jiggle pin included for air relief during filling
  • One outlet port with 1.23 in outlet diameter
  • Rubber gasket/seal included
  • Two bolt holes for OE-style mounting
  • Constructed from aluminum, stainless steel, and copper components
  • Silver finish

Product Details

Motorad’s Integrated Housing Thermostat line focuses on OE-style replacement parts that follow original specifications and manufacturing processes. This assembly uses a copper case and wax compound for responsive temperature control as coolant temperatures change, while the offset design and air relief features support proper system bleeding where applicable. The 324-185 is built for Saturn cooling system maintenance where the thermostat housing and seal are serviced together.

This part cross-references Dorman - OE Solutions 902-2036 and 902-2079 for the same application.

Common Cooling System Issues Addressed

  • Engine running too cool or too warm due to thermostat wear
  • Coolant leaks at the thermostat housing or seal area
  • Air trapped in the cooling system after service
  • Delayed coolant temperature regulation during warm-up
  • Housing corrosion or seal deterioration on Saturn cooling repairs

Installation Notes and Tips

Verify the engine is cool before removing the existing thermostat housing assembly. Inspect the mating surface, coolant passages, and hose connection area before installation. Replace damaged hoses or fasteners as needed, and follow the vehicle service procedure for coolant refill and air bleeding. Confirm the 185 Deg. F temperature rating and outlet diameter match the original application before installation.

Compatible With 1991-2002 Saturn SL, 1991-2002 Saturn SL1, 1991-2002 Saturn SL2, 1991-2002 Saturn SC, 1993-2002 Saturn SC1, 1993-2002 Saturn SC2, 1993-1999 Saturn SW1, and 1993-2001 Saturn SW2.

Quality Assurance

Manufactured to OEM specifications and processes by an OE supplier using OEM-quality materials and safety standards. Built to meet the demands of automotive cooling systems and support reliable thermostat housing replacement on select Saturn models.

This part fits 74 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2002SaturnSC11.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
2002SaturnSC21.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
2002SaturnSL1.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
2002SaturnSL11.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
2002SaturnSL21.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
2001SaturnSC11.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
2001SaturnSC21.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
2001SaturnSL1.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
2001SaturnSL11.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
2001SaturnSL21.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
2001SaturnSW21.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
2000SaturnSC11.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
2000SaturnSC21.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
2000SaturnSL1.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
2000SaturnSL11.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
2000SaturnSL21.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
2000SaturnSW21.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1999SaturnSC11.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1999SaturnSC21.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1999SaturnSL1.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1999SaturnSL11.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1999SaturnSL21.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1999SaturnSW11.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1999SaturnSW21.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1998SaturnSC11.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1998SaturnSC21.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1998SaturnSL1.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1998SaturnSL11.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1998SaturnSL21.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1998SaturnSW11.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1998SaturnSW21.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1997SaturnSC11.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1997SaturnSC21.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1997SaturnSL1.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1997SaturnSL11.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1997SaturnSL21.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1997SaturnSW11.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1997SaturnSW21.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1996SaturnSC11.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1996SaturnSC21.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1996SaturnSL1.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1996SaturnSL11.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1996SaturnSL21.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1996SaturnSW11.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1996SaturnSW21.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1995SaturnSC11.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1995SaturnSC21.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1995SaturnSL1.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1995SaturnSL11.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1995SaturnSL21.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1995SaturnSW11.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1995SaturnSW21.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1994SaturnSC11.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1994SaturnSC21.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1994SaturnSL1.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1994SaturnSL11.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1994SaturnSL21.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1994SaturnSW11.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1994SaturnSW21.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1993SaturnSC11.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1993SaturnSC21.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1993SaturnSL1.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1993SaturnSL11.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1993SaturnSL21.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1993SaturnSW11.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1993SaturnSW21.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1992SaturnSC1.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1992SaturnSL1.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1992SaturnSL11.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1992SaturnSL21.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1991SaturnSC1.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1991SaturnSL1.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1991SaturnSL11.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
1991SaturnSL21.9LL4N/ATemperature rating of 185F; Includes thermostat, housing, and seal as per OE specifications.; Integrated Housing Thermostat
Directly replaces or cross-references 16 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Anchor — 3178Bosch — 15178Carlson — 14279Dorman - OE Solutions — 902-2036Dorman - OE Solutions — 902-2079Four Seasons — 85620Motorad — 324-18512T49D2681601-241153178-TS3248593241852100606521006335P3178