HS4 & HIF4 Piston & Suction Chamber Assembly | LZX 1968

Genuine SU Piston & Suction Chamber Assembly for HS4 and HIF4 carburettors — Part Number: LZX 1968.

A complete piston and suction chamber assembly — the core of the SU variable choke carburettor. When the original suction chamber or piston is worn, cracked, or damaged, engine performance deteriorates significantly. This genuine replacement restores original carburettor function.

Specification:

• Keyway type: Front keyway
• Metering needle type: Bias metering needles
• Dustproof type: Non-Dustproof (vented cap required)
• Needle locking screw: AUC 2057

Front keyway carburettor — uses bias metering needles. Compatible with both HS4 and HIF4.

Suitable for: HS4 and HIF4 applications. MGB, MG Midget, Triumph Spitfire, Mini (later), Metro, Maestro, Montego.

Genuine SU manufacture — made in the UK to original specification.