Motorad 660-180 Engine Coolant Thermostat Housing Assembly - Upper
OE Quality 60-Day Returns
Motorad
 Integrated Housing Thermostat

Motorad 660-180 Engine Coolant Thermostat Housing Assembly - Upper

Brand Motorad 660-180
Position Upper
Bleeder Hole Yes
Bolts Included No
Color Black
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 Plastic, Stainless Steel, Copper
Mounting Hardware Included No
Number Of Bolt Holes 3
Number Of Outlet Ports 1
Number Of Seals 1
Opening Temperature 180
Outlet Diameter 1.50 in
Start to Open Temperature 180 Deg. F
Temperature 180 Deg. F
Temperature (Degree) 180
Product line Integrated Housing Thermostat
Fits Lexus · 50 vehicles

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

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

Complete sealing design. Includes a rubber seal, bleeder hole, and jiggle pin where applicable.

Cross-references Bosch 66080, Continental 49408 and Dorman - OE Solutions 902-5137 for the same application. See all 12.

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Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Engine Coolant Thermostat Housing Assembly options

Integrated Thermostat Housing for Lexus Cooling Systems

Motorad 660-180 is an integrated housing thermostat assembly built for OE-style cooling system service. It uses OEM-quality materials and an 180°F opening temperature to help regulate coolant flow in Lexus applications that call for this configuration.

Compatible With Lexus GS350, Lexus GS450h, Lexus IS250, Lexus IS300, Lexus IS350, Lexus RC300, Lexus RC350, and GS300 applications listed below.

Key Features

  • Integrated housing thermostat assembly with a black plastic housing
  • 180°F start-to-open temperature for factory-style coolant control
  • Bleeder hole and jiggle pin included for air relief during service
  • Rubber gasket/seal included for sealing at installation
  • 3 bolt holes and 1 outlet port with a 1.50 in outlet diameter
  • Constructed with plastic, stainless steel, and copper components
  • OE-style seals and offset design where applicable

Product Details

The Motorad Integrated Housing Thermostat line focuses on direct-fit cooling system service parts built to OEM specifications and processes. Part number 660-180 uses a copper case and wax compound for responsive temperature control as coolant conditions change, while the integrated housing format simplifies replacement on vehicles that use a combined thermostat and housing design. This part cross-references Bosch 66080 and Dorman - OE Solutions 902-5137 for the same application.

Vehicle Fitment

  • Fits 2013-2018 Lexus GS450h, N/A
  • Fits 2007-2011 Lexus GS450h, N/A
  • Fits 2016-2018 Lexus IS300, N/A
  • Fits 2006-2017 Lexus IS350, N/A
  • Fits 2016-2017 Lexus RC300, N/A
  • Fits 2015-2017 Lexus RC350, N/A
  • Fits 2013-2015 Lexus GS350, N/A
  • Fits 2007-2011 Lexus GS350, N/A
  • Fits 2006-2015 Lexus IS250, N/A
  • Fits 2006 Lexus GS300, Upper

Installation Notes

Verify the 180°F temperature rating, outlet diameter, bolt-hole count, and housing style before installation. Inspect the mating surface, replace the seal supplied with the assembly, and bleed trapped air from the cooling system using the integrated bleeder hole and jiggle pin. Confirm the vehicle uses the listed position and OE-style integrated housing layout before service.

Quality Assurance

Motorad manufactures this thermostat housing assembly with OEM-quality materials and safety standards as an OE supplier. The part is built to meet OEM specifications and is intended for demanding automotive cooling systems.

Related reading

This part fits 50 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2018LexusGS450h3.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2018LexusIS3003.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2017LexusGS450h3.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2017LexusIS3003.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2017LexusIS3503.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2017LexusRC3003.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2017LexusRC3503.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2016LexusGS450h3.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2016LexusIS3003.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2016LexusIS3503.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2016LexusRC3003.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2016LexusRC3503.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2015LexusGS3503.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2015LexusGS450h3.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2015LexusIS2502.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2015LexusIS3503.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2015LexusRC3503.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2014LexusGS3503.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2014LexusGS450h3.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2014LexusIS2502.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2014LexusIS3503.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2013LexusGS3503.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2013LexusGS450h3.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2013LexusIS2502.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2013LexusIS3503.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2012LexusIS2502.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2012LexusIS3503.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2011LexusGS3503.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2011LexusGS450h3.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2011LexusIS2502.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2011LexusIS3503.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2010LexusGS3503.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2010LexusGS450h3.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2010LexusIS2502.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2010LexusIS3503.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2009LexusGS3503.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2009LexusGS450h3.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2009LexusIS2502.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2009LexusIS3503.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2008LexusGS3503.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2008LexusGS450h3.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2008LexusIS2502.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2008LexusIS3503.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2007LexusGS3503.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2007LexusGS450h3.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2007LexusIS2502.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2007LexusIS3503.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2006LexusGS3003.0LV6Upper180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2006LexusIS2502.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
2006LexusIS3503.5LV6N/A180F temperature thermostat housing assembly with seal and OE specifications.; Integrated Housing Thermostat
Directly replaces or cross-references 12 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Bosch — 66080Continental — 49408Dorman - OE Solutions — 902-5137Four Seasons — 56608Four Seasons — 86112Motorad — 660-1801601-32591166080-TS96601801603131020HT180-066P66080