Green band master cylinder with imperial unions 1978 to 1980. Copper nickel.
GB4999
Black band master cylinder 1980-88 with metric unions plus a 12mm union master pipe for converting to GMC227 yellow band master cylinder fitted from 1985-88. Copper nickel.
GB5000
Servo type from 1988 on, pipes 3 and 5 were joined by a connector No.4. This was only fitted for assembly line purposes to enable sub units to be built up for quicker installation. If they need replacing it is sensible to fit a single pipe only - HMV013. Copper nickel.
BAU5654
Conversion genuine kit when replacing earlier master cylinders with GMC227
RHD
BAU5654MS
Conversion Copper Nickel pipe kit when replacing earlier master cylinders with GMC227
RHD
BAU5655MS
LHD
See previous page for part number prefix guide on brake pipes.