Visco-Kupplung für Fahrzeuge mit Allradantrieb. zuzüglich 435,45 Euro
T4 Viscous Coupling overpressure | Here is another T4 Viscous Coupling with a "little" overpressure. This might be the reason for cracked t4 syncro housings. #vwkern | By Visco Werkstatt Kern | Facebook
File:Allrad autom.jpg - Wikimedia Commons
File:Visco-clutch in car transmission.svg - Wikimedia Commons