AC Industries Master Cylinder — Dual-Circuit 20.6mm Big Bore, 4-Wheel Disc | VW Beetle, Ghia & Thing 1949–1977 (113611020BAD)

AC Industries ambidextrous dual-circuit master cylinder for four-wheel disc brake conversions. The 20.6mm big bore moves the extra fluid volume a full disc system needs, and the ambidextrous design works on both left- and right-hand-drive cars — outlet ports on both sides let you mount it on either side of the chassis.

Fits: 1949–1977 VW Beetle, Karmann Ghia & Thing running four-wheel disc brakes. Does not fit Super Beetle — for ’71–’79 Super Beetle four-wheel disc, use #113611020BHD instead.

Features:

• Dual-circuit, 20.6mm big bore
• Ambidextrous — works for left- and right-hand drive
• Outlet ports on both sides for left- or right-side mounting
• Includes four threaded plugs to seal the unused ports

Pairs with: top-mount dual-circuit brake fluid reservoir #251611301V (sold separately). Also offered as a master cylinder + reservoir combo (#113698020K).

AC Industries part #113611020BAD