Classic Mini Early Rear Wheel Cylinder Non Genuine 

Non genuine 0.625-5/8" reproduction rear wheel cylinder used from 1959-1967.

Quantity one per rear wheel and 2 required for a car set. 

Bleed nipple now 7mm spanner size but same thread original 513118A used to be 6.2mm (1/4").

Part number for reference: GWC1101