Motorad 461-180 Engine Coolant Thermostat

Engine Coolant Thermostat for GM Applications

The Motorad Standard 461-180 engine coolant thermostat is a direct-fit cooling system component built to open at 180°F. It is used in a wide range of Buick, Chevrolet, GMC, Pontiac, Saturn, and Saab applications, including Chevrolet Malibu, Equinox, and HHR models. The included seal and OE-style construction support accurate coolant temperature control in everyday driving and demanding cooling conditions.

Key Features

• 180°F start-to-open temperature for standard cooling system operation
• Standard thermostat design with copper case and wax compound
• Includes one rubber O-ring seal
• Offset design with air relief valve where applicable
• OEM specifications and manufacturing processes
• Sealing flange outside diameter: 2.12 in
• Height: 1.9 in; height between flanges: 1.33 in
• Flange thickness: 0.05 in

Product Details

Motorad Standard 461-180 is engineered as an OE-supplier thermostat for vehicles that require a 180-degree coolant control point. The copper case and wax compound respond quickly to coolant temperature changes, helping the engine reach and maintain the intended operating range. This part number, 461-180, is listed for many GM platforms and related Saab applications, making it a practical replacement for service work on Chevrolet Malibu, Equinox, HHR, Cobalt, and similar models.

This part cross-references Federal Parts 4698 for the same application.

Common Cooling System Issues It Can Address

• Engine running too cool or taking too long to reach operating temperature
• Temperature fluctuations caused by a worn thermostat
• Coolant flow control problems related to thermostat sticking
• Seal leakage at the thermostat housing interface
• Check engine concerns tied to incorrect coolant temperature regulation

Installation Notes and Fitment

Install with the included seal and verify the housing surface is clean before assembly. Confirm the thermostat orientation matches the original part, especially on applications that use an offset design or air relief valve. Compatible with 2011-2017 Buick Regal, 2012-2017 Buick Verano, 2010-2017 Chevrolet Equinox, 2010-2017 GMC Terrain, 2010-2016 Buick LaCrosse, 2008-2015 Chevrolet Captiva Sport, 2014 Chevrolet Impala, 2004-2014 Chevrolet Malibu, 2006-2011 Chevrolet HHR, 2003-2011 Saab 9-3, 2010-2011 Saab 9-3X, 2011 Saab 9-5, 2010 Buick Allure, 2005-2010 Chevrolet Cobalt, 2007-2010 Pontiac G5, 2006-2010 Pontiac G6, 2007-2010 Saturn Sky, 2002-2010 Saturn Vue, 2006-2009 Pontiac Solstice, 2007-2009 Saturn Aura, 2003-2007 Saturn Ion, 2005-2006 Pontiac G4, 2005-2006 Pontiac Pursuit, 2002-2005 Chevrolet Cavalier, 2004-2005 Chevrolet Classic, 2002-2005 Pontiac Grand Am, 2002-2005 Pontiac Sunfire, 2002-2004 Oldsmobile Alero, 2004 Saturn L300, 2001-2003 Saturn L200, 2001-2003 Saturn LW200, 2001-2002 Chevrolet Astra, 2001-2002 Saturn L100, 2000 Saturn LS, 2000 Saturn LS1, and 2000 Saturn LW1.

Quality Assurance

Motorad manufactures this thermostat with OEM-quality materials and processes as an OE supplier, using safety standards intended for demanding automotive cooling systems. The 461-180 is built to OE specifications for consistent temperature control and reliable sealing performance.