MAHLE 11-53-1-710-953 80 Engine Coolant Thermostat 80°C with Seal

The MAHLE 11-53-1-710-953 80 (also known as TX2780D) is a premium quality engine coolant thermostat designed for BMW vehicles. This precision-engineered component plays a critical role in maintaining optimal engine operating temperature for peak performance and efficiency.

Key Features:

• Opening temperature: 80°C (176°F) for precise thermal management
• Includes O-ring seal for proper installation and leak-free operation
• Features wax pellet expansion element that expands when heated to open the valve and contracts when cooled to close it
• OEM-quality construction manufactured to exact BMW specifications
• Direct replacement for BMW part numbers 11531710953, 11531713040, 11531466174, and 11531446174

The thermostat regulates coolant flow between the engine and radiator, blocking flow when the engine is cold to allow rapid warm-up, then opening at the specified temperature to allow coolant circulation through the radiator. This ensures the engine operates at the optimal temperature range for efficiency, performance, and reduced emissions. MAHLE thermostats are known for their precision, durability, and maintenance-free operation, making them a trusted choice for cooling system maintenance and repair.