Calorstat TH5812.92 Engine Coolant Thermostat

Engine coolant thermostat overview

Calorstat TH5812.92 is a standard engine coolant thermostat for a wide range of Dodge and Jeep applications. It opens at 197°F and uses a jiggle pin weep hole for controlled coolant flow and air bleeding during operation.

Key features

• Standard thermostat design for direct cooling system service.
• Starts to open at 197°F for temperature control in the cooling circuit.
• Jiggle pin weep hole helps purge trapped air from the system.
• No gasket or seal included.
• Sealing flange outside diameter: 2.12 in.; height between flanges: 0.88 in.

Fitment details

Compatible with 1988-1996 Dodge Dakota, 1988-1996 Dodge Ramcharger, 1993-1996 Jeep Grand Cherokee, and 1988-1993 Dodge D150. It also fits 1994-1996 Dodge Ram 1500, 1994-1996 Dodge Ram 2500, 1994-1996 Dodge Ram 3500, 1995-1996 Dodge B1500, 1995-1996 Dodge B2500, and 1995-1996 Dodge B3500. Additional coverage includes 1994 Dodge B150, B250, and B350, plus 1988-1989 Chrysler Fifth Avenue, 1988-1989 Dodge D100, 1988 Dodge D250, D350, W250, and W350, 1988-1993 Dodge W150, 1996 Dodge Ram 2500 Van, 1996 Dodge Ram 3500 Van, and 1993-1996 Jeep Grand Cherokee.

What this thermostat helps address

• Engine running too cool or too warm.
• Slow warm-up after startup.
• Unstable coolant temperature during driving.
• Air pockets in the cooling system after service.

Installation notes and tips

Match the thermostat opening temperature to the vehicle application listed in the fitment data. Inspect the housing and sealing surfaces before installation, and use a separate gasket or seal if required because this part does not include one. Verify coolant level and bleed the system after installation to remove trapped air.

Quality assurance

Calorstat TH5812.92 is built as a standard replacement thermostat for cooling system service. This part cross-references Monroe Shocks & Struts (e.g., 04494469, 4494469) for the same application.