Crank Shaft Bolt/Lock is a direct fit for the following:

2001-2010 Mazda B-Series
2013-2014 CX-5
2004-2013 Mazda 3
2006-2013 Mazda 5
2003-2013 Mazda 6
2006-2013 Mazda MX-5 

Genuine Mazda Part Number: LF01-11-511