Stant 49742 Engine Coolant Thermostat / Water Outlet Assembly

Integrated Thermostat Housing for GM Applications

Stant Part Number 49742 is an engine coolant thermostat and water outlet assembly with the thermostat integrated into the housing. It is built from durable material for long service life and is specified at 203 degrees Fahrenheit for the listed Chevrolet, GMC, Buick, and Cadillac applications.

This integrated thermostat housing simplifies service by combining the thermostat and housing into one assembly. It is a direct-fit cooling system replacement for select Chevrolet Colorado, GMC Canyon, Buick LaCrosse, Cadillac ATS, and Chevrolet Malibu applications.

Key Features

• Integrated thermostat housing design for a streamlined cooling system repair
• 203 degrees Fahrenheit thermostat rating
• Durable housing material for long-lasting service
• Water outlet thermostat housing construction
• Stant Part Number 49742 for catalog and fitment lookup

Detailed Product Information

The Stant Integrated Thermostat Housing line focuses on combining the thermostat into the housing assembly to reduce separate component handling during service. For this application, Part Number 49742 is engineered as an engine coolant thermostat / water outlet assembly and is listed for 2013-2020 GM vehicles including Chevrolet Colorado, GMC Canyon, Buick LaCrosse, Cadillac ATS, and Chevrolet Malibu. The 203-degree calibration supports the factory cooling strategy for the covered vehicles, while the housing design provides a direct replacement format for the original coolant outlet assembly.

Stant 49742 is a practical choice when replacing a leaking, warped, or temperature-inaccurate thermostat housing on select Chevrolet Colorado and GMC Canyon models, as well as Buick LaCrosse, Cadillac ATS, and Chevrolet Malibu applications. The integrated design helps keep the repair focused on one matched assembly rather than separate thermostat and housing components.

What This Part Helps Address

• Coolant leaks at the thermostat housing or water outlet
• Engine temperature that runs outside the expected range
• Thermostat sticking open or closed
• Cracked, warped, or aged housing surfaces
• Cooling system service on select Chevrolet Colorado, GMC Canyon, Buick LaCrosse, Cadillac ATS, and Chevrolet Malibu vehicles

Installation Notes and Tips

Verify the 203-degree temperature rating and housing style against the original part before installation. Inspect the mating surfaces, coolant passages, and related hoses for wear or contamination during service. Proper coolant refill and air bleeding are important after thermostat housing replacement to help restore normal cooling system operation.

Quality Assurance

Stant manufactures this thermostat housing assembly with durable materials and an integrated thermostat layout to support consistent replacement quality for the listed applications. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Compatible Vehicles

• Fits 2017-2020 Chevrolet Colorado, N/A; Temperature 203 Degrees; Integrated Thermostat Housing
• Fits 2015 Chevrolet Colorado, N/A; Temperature 203 Degrees; Integrated Thermostat Housing
• Fits 2017-2020 GMC Canyon, N/A; Temperature 203 Degrees; Integrated Thermostat Housing
• Fits 2015 GMC Canyon, N/A; Temperature 203 Degrees; Integrated Thermostat Housing
• Fits 2018-2019 Buick LaCrosse, N/A; Temperature 203 Degrees; Integrated Thermostat Housing
• Fits 2013-2017 Cadillac ATS, N/A; Housing includes thermostat; Integrated Thermostat Housing
• Fits 2016 Chevrolet Colorado, N/A; Housing includes thermostat; Integrated Thermostat Housing
• Fits 2016 GMC Canyon, N/A; Housing includes thermostat; Integrated Thermostat Housing
• Fits 2013 Chevrolet Malibu, N/A; Temperature 203 Degrees; Integrated Thermostat Housing