Motorad 228-195 Engine Coolant Thermostat

Engine Cooling Control for OE-Style Performance

The Motorad Standard 228-195 engine coolant thermostat is built for precise temperature control in a wide range of domestic and import applications. With a 195°F start-to-open rating, copper case construction, and wax compound response, it is made to react quickly to coolant temperature changes and maintain stable engine operating conditions.

Compatible With Chevrolet Silverado 1500, GMC Sierra 1500, Chevrolet Blazer, GMC Jimmy, and other listed applications, this thermostat follows OEM specifications and processes for a direct-fit replacement.

Key Features

• 195°F start-to-open temperature for OE-style cooling system operation
• Copper case and wax compound for responsive temperature control
• Manufactured to OEM specifications and processes
• Offset design with air relief valve where applicable
• OEM-style seals included where applicable
• Standard thermostat design for broad vehicle coverage
• Motorad Standard 228-195 cross-references select OE replacement numbers for the same application

Product Details

This thermostat is engineered as a standard engine coolant thermostat for vehicles that call for a 195°F operating point. The sealing flange outside diameter measures 2.12 in, height between flanges is 1.52 in, overall height is 2.17 in, and flange thickness is 0.06 in. Bypass dimensions are 1.09 in diameter and 1.37 in length. The design does not include a gasket or seal, jiggle pin weep hole, or installation tool.

Motorad manufactures this part with OEM-quality materials and safety standards as an OE supplier, making it a practical replacement for cooling systems that need consistent thermostat response. The 228-195 is listed across many years and models, including Chevrolet Silverado 1500, GMC Sierra 1500, and Chevrolet Blazer applications.

Common Symptoms This Part Can Address

• Engine running cooler or hotter than the specified operating range
• Slow warm-up after cold starts
• Temperature fluctuations during stop-and-go driving
• Cooling system performance issues tied to a sticking thermostat
• Incorrect coolant flow control in 195°F applications

Installation Notes

Verify the thermostat temperature rating, bypass dimensions, and flange measurements against the original part before installation. Clean the housing sealing surfaces thoroughly and inspect the cooling system for contamination, old seal material, or corrosion before reassembly. Because no gasket or seal is included, use the correct sealing components specified for the vehicle application.

For fitment, this part is listed for applications such as Fits 1999-2013 Chevrolet Silverado 1500, N/A; Fits 1999-2013 GMC Sierra 1500, N/A; Fits 1996-2005 Chevrolet Blazer, N/A; and Fits 1996-2002 GMC Jimmy, N/A.

Quality Assurance

Motorad Standard parts are manufactured to OEM specifications and processes by an OE supplier, with materials selected to meet OEM quality and safety standards. The copper case and wax compound are used to support fast response to coolant temperature changes in demanding automotive cooling systems.