1987 Yamaha YSR50T OIL PUMP This part is number 001 on this diagram Quantity required per assembly: 1
1988 Yamaha YSR50U OIL PUMP This part is number 001 on this diagram Quantity required per assembly: 1
1989 Yamaha YSR50W OIL PUMP This part is number 001 on this diagram Quantity required per assembly: 1
1990 Yamaha YSR50A OIL PUMP This part is number 001 on this diagram Quantity required per assembly: 1
1991 Yamaha YSR50B OIL PUMP This part is number 001 on this diagram Quantity required per assembly: 1
1992 Yamaha YSR50D OIL PUMP This part is number 001 on this diagram Quantity required per assembly: 1