Repair kit for Suzuki master brake cylinder MSR301

For Suzuki at the rear:
GS 1000 G/S (80-82) TYP GS1000, GS 1100 G (82-83) TYP GU73A, GS 550 (77-83), GS 750 (77-79), GS 850 G (80-84) TYP GS850, GSX 1100 EF/ES (84-86) TYP GV71B, GSX 750 E (80-84) TYP GS75X