Calorstat TH4856.92J Engine Coolant Thermostat

Engine Coolant Thermostat for Volvo Cooling Systems

The Calorstat TH4856.92J engine coolant thermostat is an OEM-grade replacement built for precise coolant flow control. It opens at 198°F / 92°C and includes a gasket and rubber seal for a direct-fit service on select Volvo applications.

Key Features

• Engine coolant thermostat with standard design
• OEM grade construction for service replacement use
• Starts to open at 198°F / 92°C
• Gasket included with rubber seal material
• Jiggle pin weep hole included for air bleeding
• By-pass valve diameter: 29.0 mm
• Valve-seat diameter: 54.0 mm
• Sealing flange outside diameter: 2.12 in
• Height between flanges: 0.51 in

Detailed Description

Calorstat TH4856.92J is an engine coolant thermostat for Volvo 240, Volvo 740, Volvo 760, Volvo 745, Volvo 780, and Volvo 940 applications listed below. This thermostat is specified to begin opening at 198°F / 92°C, helping regulate coolant circulation once operating temperature is reached. The included gasket and rubber seal support a proper sealing interface during thermostat service, while the jiggle pin weep hole assists with air purge during filling.

This part cross-references Walker Exhaust 14773 for the same application. The Calorstat TH4856.92J part number is also referenced by multiple interchange numbers for thermostat replacement matching.

Vehicle Fitment

• Fits 1991-1995 Volvo 940, N/A. Opening Temp: 92 C / 198 F
• Fits 1990-1993 Volvo 240, N/A. Opening Temp: 92 C / 198 F
• Fits 1985-1992 Volvo 740, N/A. Opening Temp: 92 C / 198 F
• Fits 1990-1991 Volvo 780, N/A. Opening Temp: 92 C / 198 F
• Fits 1990 Volvo 760, N/A. Opening Temp: 92 C / 198 F
• Fits 1987 Volvo 760, N/A. Opening Temp: 92 C / 198 F
• Fits 1985 Volvo 745, N/A. Opening Temp: 92 C / 198 F

Installation Notes and Tips

• Confirm the thermostat opening temperature matches the original service specification before installation.
• Clean the housing and sealing surfaces thoroughly before fitting the new gasket.
• Orient the jiggle pin weep hole according to the vehicle service procedure when applicable.
• Refill and bleed the cooling system carefully to remove trapped air after service.
• Verify coolant level and operating temperature after installation on Volvo 240, Volvo 740, Volvo 760, Volvo 745, Volvo 780, or Volvo 940 models.

Quality Assurance

Calorstat TH4856.92J is an OEM-grade thermostat built to match the listed temperature and dimensional specifications for the confirmed Volvo applications. Use the part number TH4856.92J to verify fitment against your existing thermostat before ordering.