This lightweight aluminium alternator pulley is designed to fit the MX5 NA and NB engines (Both V and ribbed belt styles are available).
Manufactured from aircraft grade aluminium, it is 35% lighter than the original pressed steel pulley
All pulleys are to fit 17mm shafts, it is worth checking your alternator to ensure these are the same. It is worthwhile removing your pulley to measure, and send a picture of both sides of the pulley to ensure the correct part is ordered.
