64116910755, 64116988960 (Replaces 11537595156)
BMW 1 Series (E81, E82, E87, E88), 3 Series (E90, E91, E92, E93), 5 Series (E60), Z4 (E89)
N54 (3.0L Twin-Turbo Inline-6), N55 (3.0L Turbo Inline-6)
Thermostat with Integrated Housing (Mechanical)
Regulates the flow of coolant between the engine and the radiator. It keeps the engine at its optimal operating temperature by opening and closing based on coolant temperature, ensuring efficient combustion and emissions control.
OEM standard design, high-precision wax element for accurate temperature control, durable aluminum housing, and reliable sealing. Direct replacement for the original factory part.