Calorstat TH5962.88J Engine Coolant Thermostat

Engine Coolant Thermostat for Volkswagen Jetta

Calorstat TH5962.88J is a standard engine coolant thermostat built for precise coolant flow control in the cooling system. It opens at 190.0°F and includes a gasket O-ring seal for a direct-fit service replacement on the 2009 Volkswagen Jetta.

Key Features

• Engine coolant thermostat, standard type
• Start-to-open temperature: 190.0°F
• Sealing flange outside diameter: 2.12 in.
• Height between flanges: 0.88 in.
• Gasket or seal included: Yes
• Seal type: Gasket O-Ring
• Seal material: Rubber + Paper

Detailed Description

Calorstat TH5962.88J is an OE-style engine coolant thermostat for cooling system temperature regulation. It is listed for the 2009 Volkswagen Jetta and is identified as an OE supplier-related application note for Volkswagen. The 190.0°F opening point helps maintain proper operating temperature by controlling coolant circulation through the engine and radiator circuit. This part number, TH5962.88J, is also cross-referenced in the aftermarket for the same application, including Gates 33923.

For buyers searching for a 2009 Volkswagen Jetta thermostat, Volkswagen Jetta coolant thermostat replacement, or TH5962.88J thermostat fitment, this part provides the core thermostat and sealing components needed for service work in the cooling system.

What It Helps Address

• Engine running too cool or taking too long to reach operating temperature
• Temperature fluctuations caused by a worn thermostat
• Coolant flow control issues in the thermostat housing circuit
• Cooling system service needs on a 2009 Volkswagen Jetta
• Seal-related leakage at the thermostat mounting interface

Installation Notes and Tips

Verify the sealing flange dimensions and thermostat temperature rating before installation. Clean the housing mating surfaces thoroughly and replace the seal with the included gasket O-ring during service. Confirm correct coolant fill and bleed procedure after installation to help restore stable engine temperature control. Fits 2009 Volkswagen Jetta, N/A.

Quality Assurance

Calorstat is an established cooling system brand, and this thermostat is built to match the specified OE-style application for the 2009 Volkswagen Jetta. Part number TH5962.88J is listed with confirmed fitment and defined dimensional and temperature specifications for accurate replacement selection.