The Bolt,6x25 is the most widely applied product in the ZX750K1 ZXR750R 1991 EUROPE UK FR AR FG IT NR SP OIL PUMP ( three times ).
The Pin-gear Change Drum is the cheapest item from this partsfiche.
The Oil Pump assembly is constructed from several parts from which the Sprocket,oil Pump,30t is the most expensive.