Calorstat TH7354.88J Engine Coolant Thermostat

Engine Coolant Thermostat for Kia and Hyundai

Calorstat TH7354.88J is a standard engine coolant thermostat with a 190.0°F opening temperature for precise coolant flow control. It includes a gasket seal and uses rubber + paper sealing materials for a secure housing interface on supported Kia and Hyundai applications.

Built for OE-style cooling system service, this thermostat helps maintain proper engine operating temperature in vehicles such as the Kia Forte, Kia Soul, and Hyundai Elantra. The TH7354.88J part number is also referenced in thermostat replacement searches for late-model Asian vehicles.

Key Features

• Standard engine coolant thermostat for cooling system temperature regulation
• Start to open temperature: 190.0°F
• Gasket or seal included for installation at the housing interface
• Seal type: gasket
• Seal material: rubber + paper
• Sealing flange outside diameter: 2.12 in.
• Height between flanges: 1.1 in.
• Calorstat TH7354.88J for OE-style thermostat replacement service

Detailed Description

Calorstat TH7354.88J is an engine coolant thermostat specified for a wide range of Kia and Hyundai vehicles, including the Kia Forte, Kia Forte5, Kia Soul, Kia Seltos, Hyundai Elantra, Hyundai Elantra GT, Hyundai Sonata, and Hyundai Tucson. With a 190.0°F opening temperature, it supports normal coolant circulation once the engine reaches operating temperature, helping the cooling system regulate heat consistently.

This thermostat is a direct-fit style service part for applications listed as OEM recommended or 88 C / 190 F opening temperature. The TH7354.88J part number is commonly searched for thermostat replacement on Kia Forte and Hyundai Elantra cooling system repairs, and it cross-references Stant 50198 for the same application.

Common Problems It Can Help Address

• Engine running too cool or taking too long to reach operating temperature
• Temperature fluctuations caused by a worn thermostat
• Cooling system service after thermostat housing maintenance
• Check engine concerns related to coolant temperature regulation
• Reduced heater performance from improper coolant flow control

Installation Notes and Tips

• Verify the thermostat opening temperature and housing dimensions before installation.
• Inspect the sealing surface and clean the housing thoroughly before fitting the gasket seal.
• Use the correct coolant and bleed air from the system after service.
• Confirm vehicle-specific fitment for your Kia Forte, Kia Soul, Hyundai Elantra, or other listed application by year and engine configuration.

Quality Assurance

Calorstat cooling system components are built for OE-style replacement service. This thermostat is specified with a gasket seal and defined dimensional details to support accurate fitment in the listed Kia and Hyundai applications.