Calorstat TH7216.86J Engine Coolant Thermostat Housing Assembly

Engine Coolant Thermostat Housing for GM V8 Applications

Calorstat TH7216.86J is an aluminum engine coolant thermostat housing assembly with a silver finish, gasket included, and a 187.0-degree start-to-open temperature. It is built for GM applications that need a direct-fit thermostat housing replacement with the correct outlet port layout and mounting pattern.

Key Features

• Aluminum thermostat housing assembly for cooling system service
• Silver finish for a clean OE-style appearance
• Gasket included with gasket-type sealing surface
• 2 mounting holes for proper installation alignment
• 1 outlet port for the specified cooling system configuration
• Starts to open at 187.0 degrees
• Part number TH7216.86J for ordering and cross-reference

Detailed Description

Calorstat TH7216.86J is an engine coolant thermostat housing assembly used in a wide range of Chevrolet, GMC, Cadillac, Pontiac, Buick, and Hummer vehicles. This housing is made from aluminum and includes a gasket, helping restore a secure seal at the thermostat location. Vernet is an OE supplier to GM, which makes this part a strong match for owners servicing GM cooling systems on vehicles such as the Chevrolet Corvette, Cadillac CTS, and GMC Sierra 1500.

This part cross-references Four Seasons 15828 for the same application. The TH7216.86J part number is also useful when searching for a thermostat housing assembly for 1997-2009 GM performance, truck, and SUV platforms.

What It Helps Address

• Coolant leaks at the thermostat housing
• Cracked or corroded original housing
• Improper thermostat sealing
• Cooling system temperature control issues
• Service replacement needs on GM V8 applications

Installation Notes and Tips

Verify the mounting hole count, outlet port configuration, and thermostat opening temperature before installation. Clean the mating surfaces thoroughly and inspect the cooling system for residue or damage that could affect sealing. Use the included gasket during assembly and confirm proper coolant refill and bleed procedures after installation. Confirm fitment by year, make, and model before ordering TH7216.86J.

Quality Assurance

Calorstat and Vernet OE-supplier background supports consistent application matching for GM cooling system service. This thermostat housing assembly is built to meet the fitment and sealing requirements listed for compatible Chevrolet Corvette, Cadillac CTS, GMC Sierra 1500, and related GM vehicles.