Manufactured in England for AlfaStop by a long established supplier to Girling and AP Racing. Equivalent in quality to the original Girling item. The piston (plunger) is case hardened to a depth of 0. 010" and then centreless ground. This item is NOT offered as being suitable for the various un-branded reproduction master cylinders currently available on the market.
 
Part Name:  1.0 Inch Girling Master Cylinder Piston (Plunger)
Alfastop Product Code: 1BRM122
Original Alfa Romeo Part No: 1356.66.057
Model: Giulietta 750 & 101
Quantity Per Car: 1