Motorad 540-198 Engine Coolant Thermostat Housing Assembly

Integrated Thermostat Housing Assembly

Motorad 540-198 is an engine coolant thermostat housing assembly built to OE specifications for cooling-system service. It uses OEM-quality materials and includes the thermostat housing and seal for applications that call for a 198°F opening temperature.

Key Features

• Integrated housing thermostat design for direct cooling-system replacement.
• 198°F opening temperature for OE-specified thermal control.
• Aluminum, stainless steel, and copper construction with a silver finish.
• Rubber seal included for a proper housing-to-engine seal.
• Two bolt holes and one outlet port for application-specific fitment.
• OE Supplier manufacturing process with OEM-style seals where applicable.

Detailed Description

This Motorad thermostat housing assembly is engineered for vehicles that require a 198°F thermostat and integrated housing design. The copper case and wax compound are used to respond quickly to coolant temperature changes, while the offset design and air relief valve support stable coolant flow during operation. Fits 2004-2020 Chevrolet Tornado, N/A; Fits 2015-2017 Fiat Palio, N/A; Fits 2004-2011 Fiat Palio, N/A; Fits 2010-2012 Chevrolet Chevy, N/A; Fits 2008-2009 Fiat Idea, N/A; Fits 2002-2008 Chevrolet Corsa, N/A; Fits 2004-2008 Chevrolet Meriva, N/A; Fits 2007-2008 Fiat Strada, N/A; Fits 2003 Chevrolet Chevy Monza, N/A. This part cross-references Dorman - OE Solutions 540-198 for the same application.

Common Replacement Issues

• Coolant temperature that stays too low or runs too hot.
• Cracked or warped thermostat housing.
• Leaking seal at the housing interface.
• Slow thermostat response during warm-up.
• Cooling-system service caused by worn integrated housing components.

Installation Notes and Quality

Verify the 198°F temperature specification and match the housing style to the original part before installation. Confirm the outlet diameter, bolt-hole count, and seal style against the removed component. Motorad manufactures this part with OEM quality materials and processes as an OE Supplier. Part number 540-198 is also referenced by Dorman - OE Solutions 540-198 for the same application.