Genuine Mercedes 1132030275 Engine Coolant Thermostat Assembly with Housing

The Genuine Mercedes 1132030275 is an engine coolant thermostat assembly designed for Mercedes-Benz AMG vehicles equipped with 5.5L V8 engines. This OEM component is engineered to maintain optimal engine operating temperature by regulating coolant flow between the engine and radiator.

Key Features:

• Complete thermostat assembly includes housing, thermostat, and gasket for a comprehensive replacement solution
• 87°C (189°F) opening temperature designed specifically for high-performance AMG applications
• Genuine Mercedes-Benz OEM quality ensures proper fit, function, and longevity
• Wax pellet design opens valve when engine exceeds optimal temperature to allow coolant circulation through the radiator
• Direct replacement for part numbers 113-203-02-75, 113.203.02.75, A1132030275, and W0133-1717366

The engine thermostat is a critical component of your Mercedes cooling system. When functioning properly, it closes during cold starts to allow the engine to warm up quickly, then opens at the precise temperature to maintain optimal operating conditions. A failed thermostat stuck in the closed position can cause engine overheating and potential damage, while one stuck open prevents the engine from reaching proper operating temperature. Replace your worn or failed thermostat with this genuine Mercedes-Benz unit to ensure reliable cooling system performance.