Calorstat TH6295.88 Engine Coolant Thermostat

Engine Cooling Thermostat Overview

Calorstat TH6295.88 is a standard engine coolant thermostat built for applications that use an 88 C / 190 F opening temperature. It is a fitment-based replacement for a wide range of Toyota, Lexus, Scion, Mitsubishi, and select other vehicles, including Toyota Camry, Toyota Corolla, and Lexus RX350 applications.

Key Features

• Standard thermostat design for engine coolant temperature control.
• Opens at 190 F / 88 C for the specified applications.
• Sealing flange outside diameter measures 2.2.
• Height between flanges measures 1.71.
• Fits a broad range of Toyota, Lexus, Scion, Mitsubishi, and select Dodge, Ford, Pontiac, Chevrolet, and Eagle applications.
• Part number TH6295.88 for catalog and fitment lookup.

Detailed Description

TH6295.88 is an engine coolant thermostat intended for vehicles that call for an 88 C / 190 F opening temperature and the listed housing dimensions. The fitment data covers many Toyota Camry, Toyota RAV4, and Lexus ES350 applications, along with additional coverage for models such as Corolla, Highlander, Avalon, Tacoma, Tundra, and RX350. Use this thermostat when the cooling system requires a standard replacement with the specified opening point and flange dimensions. Part number TH6295.88 also appears in interchange listings for related aftermarket references, including 24998 and 78407S, for the same application family.

Common Uses

• Restoring proper coolant flow control when the thermostat opening temperature is out of specification.
• Addressing overheating caused by a thermostat that sticks closed or opens late.
• Correcting slow warm-up or unstable operating temperature.
• Replacing a thermostat that no longer matches the required flange dimensions.

Installation Notes

Verify the required opening temperature, flange diameter, and height between flanges before installation. Confirm the vehicle listing against the fitment table for the exact year, make, and model. This part fits listed applications such as 1988-2017 Toyota Camry, 2001-2018 Toyota RAV4, and 2007-2018 Lexus ES350. Always inspect the cooling system condition and replace coolant as needed during thermostat service.

Quality Assurance

Calorstat TH6295.88 is specified as a standard thermostat and is cataloged with detailed dimensional and temperature data for fitment verification. The part number TH6295.88 is supported by interchange references for cross-checking application coverage.