After 4 years I wanted a new visco coupler for the radiator fan. According to the sales company Günther in Kornwestheim, there are no visco couplings, which were manufactured by Behr/Hella, more. Visco couplings are still used mass, among others also at BMW. Does anyone know a suitable spare part number, which can be used instead of GM 90 220 339 or Behr 65.311.00.000 ?? Why are the visco couplings a Ver schleißteil ? For answers I am very grateful and greet all Omega-senator friends! heinzbbg .