Motorad 993-176 Engine Coolant Thermostat Housing Assembly

Integrated Housing Thermostat Overview

The Motorad 993-176 integrated housing thermostat is built for vehicles that use a thermostat, housing, and gasket assembly in one service part. It is engineered to OE specifications with OEM-quality materials to support accurate coolant temperature control in demanding cooling systems.

With a 176 degree F opening temperature, this Motorad Integrated Housing Thermostat is a direct service solution for a wide range of Chevrolet, GMC, Lexus, and Toyota applications, including Chevrolet Equinox, GMC Terrain, Toyota Tundra, and Lexus LX600 models.

Key Features

• Part number: 993-176
• Integrated thermostat housing assembly for simplified replacement
• 176 degree F temperature rating
• Constructed from aluminum, steel, and copper
• Copper case and wax compound for responsive coolant temperature changes
• Silver finish
• Bleeder hole included
• 2-bolt housing design with 1 outlet port
• Outlet diameter: 1.18 in
• OE supplier manufacturing standards and processes

Product Details

The Motorad Integrated Housing Thermostat line is designed as an OE-style cooling system service part for vehicles that use a combined thermostat and housing design. This 993-176 assembly is manufactured using OEM-quality materials and production processes, with a copper case and wax element that react quickly to coolant temperature changes. The result is a thermostat housing assembly built to maintain stable engine operating temperature in applications such as Chevrolet Malibu, Chevrolet Spark, GMC Terrain, Toyota Sequoia, Toyota Tundra, Lexus GX550, and Lexus LX600.

This part cross-references Dorman OE Solutions 902-2124 and Gates 34842 for the same application.

What It Helps Address

• Engine running too cool or too hot due to thermostat control issues
• Coolant temperature instability during normal driving
• Leaks at a worn thermostat housing assembly
• Service replacement for integrated thermostat and housing designs
• Cooling system faults tied to a sticking or slow-responding thermostat

Installation Notes

• Compatible With 2022-2026 Chevrolet Equinox, N/A
• Compatible With 2022-2026 GMC Terrain, N/A
• Compatible With 2024-2025 Lexus GX550, N/A
• Compatible With 2022-2025 Lexus LX600, N/A
• Compatible With 2025 Lexus LX700h, N/A
• Compatible With 2023-2025 Toyota Sequoia, N/A
• Compatible With 2022-2025 Toyota Tundra, N/A
• Compatible With 2022-2024 Chevrolet Malibu, N/A
• Compatible With 2021-2022 Buick Encore, N/A
• Compatible With 2022 Chevrolet Spark, N/A
• Compatible With 2021-2022 Chevrolet Trax, N/A
• Compatible With 2018-2021 Chevrolet Equinox, N/A; Temperature 176F; includes thermostat and housing; OE specified temperature
• Compatible With 2016-2021 Chevrolet Malibu, N/A; Temperature 176F; includes thermostat and housing; OE specified temperature
• Compatible With 2016-2021 Chevrolet Spark, N/A; Temperature 176F; includes thermostat and housing; OE specified temperature
• Compatible With 2018-2021 GMC Terrain, N/A; Temperature 176F; includes thermostat and housing; OE specified temperature
• Compatible With 2016-2019 Buick Encore, N/A; Temperature 176F; includes thermostat and housing; OE specified temperature
• Compatible With 2016-2019 Chevrolet Cruze, N/A; Temperature 176F; includes thermostat and housing; OE specified temperature
• Compatible With 2018-2019 Chevrolet Sonic, N/A; Temperature 176F; includes thermostat and housing; OE specified temperature
• Compatible With 2019 Chevrolet Volt, N/A
• Compatible With 2017 Chevrolet Spark Classic, N/A; Temperature 176F; includes thermostat and housing; OE specified temperature

Before installation, confirm the engine cooling system uses a 176 degree F thermostat specification and verify the housing style, outlet diameter, and bolt-hole count against the original part. The assembly does not include mounting hardware, gasket or seal, or installation tools.

Quality Assurance

Motorad manufactures this thermostat housing assembly to OEM specifications and safety standards as an OE supplier, using materials and processes intended to meet the demands of modern cooling systems.