Belt water pump/alternator 1 with reference number 4PK790, F926202040020 fits for instance Vario 926 FENDT (s/n 926......) F926002, Vario 920 FAVORIT (s/n 920......) F920001, Vario 916 FENDT (s/n 916......) F916002. See all compatible models under the Fits to tab.