Replacement ignition key Compare your key with that shown. Cross-sections show the hole key will fit into. Keys are sent as blanks and can be cut to fit your car at any local key shop for a nominal charge. Check to make sure your blank key fits into ignition before cutting. Uncut key shaft measures 7.09mm x 21.50mm For: Alfa Romeo Spider 1966-85, Ferrari 1968-95 Fiat 1967-83 and many other Italian marques of the same era including Vespa, Ducati etc. Original codes ran from 6100-6309 Cross referenced as: Ilco #: F91CR Dominion #:SF3 Taylor #: F72W Silca #: AF4C Curtis #: FT33