1 x 3040 Bolt-on Piston assembly. Here we have the dome-topped front brake cylinder ( 1 1/8" bore ) for the late XK120 Jaguar, XK140 and early C-types etc. using the Girling self-adjusting 12" Drum brake system. The dome receives the lead edge of the front brake shoes. This is a twin leading shoe system, so 2 per side are required, a front wheel set is x 4. Castings are aluminium with steel pistons and inserts as original.

Original Ref. 30635

NOTE: THESE CASTINGS AND UNDERSIDE PLATE ARE EXACTLY TO SIZE. OTHER REPRODUCTIONS ON THE MARKET CAN BE 3MM OVERSIZE, TOTALLING A 6mm TOTAL OVERSIZE TO THE DRUM CIRCUMFERENCE WHEN 2 UNITS ARE FITTED.