An extended throttle shaft to suit the SU HS2 Carburettor
This is extended out the side of the carburettor body by around 15mm to allow fitment of the TPS sensor
( some carbs have this shaft flush fitting to the body whilst others already have the shaft extended out the body )
if your carb has flush fitting shaft then you will need this extended shaft
SU part number is AUC 5147