Motorad 203-195 Engine Coolant Thermostat

Engine Coolant Thermostat for OE-Style Cooling Control

The Motorad Standard 203-195 engine coolant thermostat is built for direct replacement service in a wide range of Chevrolet, GMC, Buick, Pontiac, Suzuki, Geo, Isuzu, and Oldsmobile applications. It is a 195 degree thermostat designed to help maintain stable coolant temperature in everyday driving and demanding cooling systems.

Motorad’s Standard line focuses on OE-style replacement parts for routine cooling system service, with OEM specifications and manufacturing processes used to support consistent fit and temperature control.

Key Features

• 195 degree Fahrenheit start-to-open temperature for OE-style engine cooling control
• Copper case and wax compound for responsive temperature changes in coolant flow
• Manufactured to OEM specifications and processes
• Offset design with air relief valve where applicable
• OEM-style seals included where applicable
• Standard type thermostat for direct replacement service
• Sealing flange outside diameter: 1.73 in
• Height between flanges: 1.04 in
• Overall height: 1.48 in
• Flange thickness: 0.04 in

Detailed Description

Motorad 203-195 is an engine coolant thermostat engineered for vehicles that call for a 195°F opening temperature. The copper case and wax compound are used to react quickly to coolant temperature changes, helping the engine reach and maintain its intended operating range. This thermostat is a practical OE-style replacement for cooling system maintenance on models such as Chevrolet S10, GMC Sonoma, Chevrolet Camaro, Pontiac Firebird, and Buick LeSabre.

This part cross-references Four Seasons 20395 and Dorman - HELP 15849 for the same application. The Motorad 203-195 part number is also commonly referenced in cooling system catalogs for direct-fit thermostat replacement.

What It Helps Address

• Engine running cooler or warmer than expected
• Delayed warm-up after cold starts
• Temperature fluctuation from a worn thermostat
• Cooling system service on high-mileage OE applications
• Replacement of a thermostat that no longer opens at the correct temperature

Installation Notes and Tips

Verify the thermostat housing style and sealing dimensions before installation. This thermostat does not include a gasket or seal, and no installation tool is included. Clean the housing and mating surfaces thoroughly, then install with the correct coolant seal or gasket specified for the vehicle. Confirm the bleed or air relief orientation matches the original part where applicable.

Compatible With 1980-2003 Chevrolet S10, 1991-2003 GMC Sonoma, 1989-1997 Chevrolet Camaro, 1989-1997 Pontiac Firebird, and other listed Chevrolet, GMC, Buick, Pontiac, Suzuki, Geo, Isuzu, and Oldsmobile applications using a 195°F standard thermostat.

Quality Assurance

Motorad manufactures this thermostat with OEM-quality materials and safety standards as an OE supplier. It is produced to OEM specifications to support reliable cooling system service in demanding automotive applications.