Brake master cylinder of OEM 7078823 is used in Fiat. The replaced numbers are Bosch# 0 986 481 020, Hella# 8AM 355 502-211, MGA# MC2185, 7079433, 71739591 and so on. The specification are as following:
1. Bore diameter: 22.2mm
2. Numbers of connectors: 4
3. Thread Size: 4*M10x1