Manual Master Cylinder Rebuild Kit, 1939-58 Oldsmobile, 1937-55 Buick MANUAL brake master cylinder rebuild kit includes necessary rubber seals, spring, valve, plunger and clips to rebuild your manual brake master cylinder. For the following applications:
1937-40 Buick exc Limited;
1941-55 Buick all models with manual brakes except 1954 Skylark;
1939-58 Oldsmobile all with manual brakes