Leading A-Series engine specialist since 1981
Our 4-inch (101.6mm) diameter alternator pulley is CNC machined from lightweight billet aluminium and anodised black to match our range of pulleys and dampers.
It is specifically designed to suit the MED Race Alternator, which comes with fitted with a 2.65-inch (67.3mm) pulley.
The larger pulley reduces the risk of alternator damage on high-RPM applications, by effectively slowing the alternator's shaft speed.
Please note, the pulley's offset will not suit standard-fitment alternators.