Volkswagen Passat Lingyu 1.8T Thermostat Assembly 06B121111M ZB45A-71

Volkswagen Passat B6 1.8T thermostat housing assembly 06B121111M/ZB45A-71 uses high-density aluminum housing with high-temperature rubber seal; more resistant to deformation or leakage under long-term thermal cycling compared to original parts. Durability and opening/closing temperature tolerance within ±1°C; superior to many aftermarket substitutes. Exclusive to Passat B6 1.8T; controls precise coolant flow path to ensure quick warm-up on cold starts and effective cooling at high temperatures. Installation replacement moderately difficult; requires draining coolant and removing intake piping; recommended to complete together with ...