059 121 350 H: Viscous coupling for Volkswagen Passat B5

The viscous coupling is an essential component of the Volkswagen Passat B5 cooling circuit, ensuring fan drive according to engine temperature. As part of the restoration or maintenance of a Passat B5 classic car, its replacement allows for a return to original thermal operation. A new spare part guarantees the reliability of the entire cooling system and helps preserve the engine over time.