Calorstat TH6231.88J Engine Coolant Thermostat

Engine Coolant Thermostat for Ford and Mazda

Calorstat TH6231.88J is a standard engine coolant thermostat with a rubber gasket seal included for a direct-fit cooling system service. It opens at 190.0°F (88°C) and is specified with a 1.49-inch sealing flange outside diameter and 0.86-inch height between flanges.

Use this thermostat when servicing cooling system temperature control on applications such as the Ford Escort, Mercury Tracer, Mazda B2300, and Mazda B2500. The TH6231.88J is built for vehicles that require an 88°C / 190°F opening temperature.

Key Features

• Standard engine coolant thermostat for cooling system temperature regulation
• Opening temperature: 190.0°F / 88°C
• Gasket included with rubber seal material
• Sealing flange outside diameter: 1.49 in.
• Height between flanges: 0.86 in.
• Cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application
• Part number: TH6231.88J

Detailed Description

Calorstat TH6231.88J is an engine coolant thermostat for vehicles that call for an 88°C / 190°F opening point. Its standard design, gasket seal, and compact flange dimensions support accurate coolant flow control in the thermostat housing. This part number, TH6231.88J, is listed for 1995-1997 Mazda B2300, 1998-2001 Mazda B2500, 1997-1998 Ford Escort, and 1997-1998 Mercury Tracer applications.

For buyers searching for a thermostat for Ford Escort 1997-1998, Mercury Tracer 1997-1998, or Mazda B2300 and B2500 cooling system repair, this Calorstat unit provides the specified temperature rating and sealing configuration needed for service replacement.

What It Helps Address

• Engine running too cool or too warm due to thermostat wear
• Delayed coolant circulation during warm-up
• Temperature fluctuation from a sticking thermostat
• Cooling system service on Ford Escort, Mercury Tracer, and Mazda B2300/B2500 models
• Replacement of a thermostat with an 88°C / 190°F opening specification

Installation Notes and Tips

Verify the thermostat housing dimensions and opening temperature before installation. Clean the sealing surfaces thoroughly and install the included gasket seal to prevent coolant leaks. Confirm the replacement matches the vehicle’s required 88°C / 190°F specification before reassembly.

Quality Assurance

Calorstat is a cooling system brand focused on thermostat applications, and this part is identified by OE-style interchange references for the same use case. Confirm fitment against the vehicle listing and the thermostat housing specification before installation.

Compatible Vehicles

• Fits 1995-1997 Mazda B2300, N/A
• Fits 1998-2001 Mazda B2500, N/A
• Fits 1997-1998 Ford Escort, N/A
• Fits 1997-1998 Mercury Tracer, N/A