55A alternator with built in voltage regulator to suit all 105/115 models fitted with alternators. This style with the built in voltage regulator was original fitment to late Spiders as well as Alfa 75s, but can be retrofitted to earlier cars as well.
This alternator is brand new, it was just fitted and removed from a car so has some minor fitting marks.
We have a number of these alternators so the one you receive may not be the one photographed but will be in comparable condition.