Calorstat THS19104.88 Engine Coolant Thermostat

Engine Coolant Thermostat for OE-Style Cooling Control

The Calorstat THS19104.88 engine coolant thermostat is a standard, OEM-grade replacement built for precise coolant temperature control. With a 190.0°F start-to-open temperature, it supports stable engine warm-up and consistent operating temperature in applications such as Dodge Viper, BMW M5, BMW M6, and Ram truck cooling systems.

Key Features

• Engine coolant thermostat for Belts and Cooling > Thermostat and Housing applications
• Standard design with OEM grade type
• Start to open temperature: 190.0°F
• Sealing flange outside diameter: 2.87
• Height between flanges: 1.83
• Calorstat THS19104.88 for direct replacement searches

Detailed Description

Calorstat THS19104.88 is an OE-style engine coolant thermostat specified for vehicles that require a 190°F opening point. The standard construction and OEM grade designation make it a practical choice for maintaining factory-style coolant regulation in 1997-2006 Dodge Viper, 2006-2010 BMW M5, 2006-2010 BMW M6, and select Dodge Ram 1500, Ram 2500, and Ram 3500 applications. The sealing flange dimensions and overall height help match the housing interface used in these cooling systems. This part cross-references Four Seasons (e.g., 33579, 33599) for the same application.

Vehicle Fitment

• Fits 2015 Dodge Viper, N/A. Notes: Opening Temp: 88 C / 190 F
• Fits 2008-2010 Dodge Viper, N/A. Notes: Opening Temp: 88 C / 190 F
• Fits 1997-2006 Dodge Viper, N/A. Notes: Opening Temp: 88 C / 190 F
• Fits 2006-2010 BMW M5, N/A. Notes: Opening Temp: 88 C / 190 F
• Fits 2006-2010 BMW M6, N/A. Notes: Opening Temp: 88 C / 190 F
• Fits 2004-2006 Dodge Ram 1500, N/A. Notes: Opening Temp: 88 C / 190 F
• Fits 1997-2003 Dodge Ram 2500, N/A. Notes: Opening Temp: 88 C / 190 F
• Fits 1994 Dodge Ram 2500, N/A. Notes: Opening Temp: 88 C / 190 F
• Fits 1997-2003 Dodge Ram 3500, N/A. Notes: Opening Temp: 88 C / 190 F
• Fits 1994 Dodge Ram 3500, N/A. Notes: Opening Temp: 88 C / 190 F
• Fits 1995-1996 Dodge Ram 2500, N/A
• Fits 1995-1996 Dodge Ram 3500, N/A

What It Helps Address

• Engine running too cool or too warm due to thermostat wear
• Delayed warm-up after cold starts
• Unstable coolant temperature during driving
• Cooling system service on OE-style replacement intervals
• Temperature control concerns in Dodge Viper, BMW M5, BMW M6, and Ram truck applications

Installation Notes

Verify the thermostat housing dimensions and the 190°F opening specification before installation. Clean the sealing surfaces thoroughly and inspect the housing, gasket surface, and coolant condition during service. Confirm the application by year, make, and model, since this part is listed for multiple Dodge and BMW vehicles with the same temperature rating.

Quality Assurance

Calorstat markets this thermostat as an OEM-grade replacement part for cooling system service. The THS19104.88 is built to match the specified operating temperature and dimensional requirements used in the listed applications.