I have a faulty brake master cylinder on my Rover 75 2.0 CDT year 2000. I have sourced a supplier for a replacement but they need the original part number which I'm finding very difficult to source
Probably SJC100410
Good luck finding one. According to Rimmer Bros. listings they are no longer available.
http://www.rimmerbros.co.uk/Item--i-GRID001561
