New woodruff key for later 1.6 (non-LWSC) engined MX-5 and Eunos Roadster, from Sep-1990 on. Identifiable by 8 slots in the crank pulley (as opposed to 4 on the early engine).
Also fits all 1.8 mk1 MX-5 1993-98 and all mk2 & mk2.5 MX-5 models 1.6 & 1.8, 1998-2005.
Genuine Mazda part. B3C7-11-317.
NM00731.