Calorstat TH3310.80 Engine Coolant Thermostat Housing Assembly

Calorstat TH3310.80 Thermostat Housing Assembly

The Calorstat TH3310.80 is an engine coolant thermostat housing assembly built from aluminium with a silver finish. It is specified with a 176.0 start-to-open temperature and three outlet ports, making it a direct-fit cooling system service part for select BMW applications.

Compatible with 1977-1983 BMW 320i and 1984-1985 BMW 318i, this thermostat housing assembly supports accurate coolant routing in the engine cooling circuit. The TH3310.80 is a practical replacement when servicing a BMW 320i or BMW 318i cooling system and replacing a worn or damaged housing.

Key Features

• Engine coolant thermostat housing assembly for the cooling system
• Aluminium construction for strength and heat resistance
• Silver finish
• 176.0 start-to-open temperature specification
• Three outlet ports for the listed application
• Calorstat TH3310.80 part number for ordering and cross-reference

Detailed Description

Calorstat TH3310.80 is an OE-style thermostat housing assembly for BMW cooling system service. Its aluminium body helps provide a durable mounting surface for coolant flow control, while the 176.0 start-to-open temperature matches the specified thermal operating range for the application. This part cross-references Gates 12187 for the same application. Use TH3310.80 when replacing a thermostat housing on a BMW 320i or BMW 318i and you need a housing with three outlet ports and the correct fitment profile.

What It Helps Address

• Cracked or corroded thermostat housing
• Coolant leaks at the housing interface
• Improper coolant routing through the thermostat assembly
• Temperature control issues caused by a worn housing
• Cooling system service on BMW 320i and BMW 318i models

Installation Notes and Tips

Inspect the mating surfaces, hoses, and adjacent cooling components before installation. This housing does not include a gasket or seal, so verify the correct sealing components are sourced separately for the vehicle. Confirm the outlet port layout and thermostat temperature specification against the original part before assembly. For BMW 320i and BMW 318i cooling repairs, clean the sealing surfaces thoroughly to help prevent leaks after installation.

Quality Assurance

Calorstat is listed in the OE supplier network for BMW applications, which supports confidence in fitment and application accuracy for the TH3310.80.