HS4 Service Replacement Carburettor — Mini 850cc & 1000cc 1975 Onwards | FZX 3012 | SU Specialists

Genuine SU service replacement HS4 carburettor. A direct replacement unit manufactured to original specification. Fully reconditioned and ready to fit — no machining or adaptation required. Restores correct fuelling and improves starting, idle and throttle response compared to a worn original.

Part Number: FZX 3012