Crankshaft Sprocket. Mity are committed to sourcing parts of OE quality or beyond, that’s why thousands of professionals trust Mity parts. Cross Reference: OE: 68198351X, 68198351AV, 68105021, 56198351AX, 2…. We are committed to keeping our prices as low as possible, and protecting our customers with long guarantees. This product comes with free 30-day no quibble returns (UK only).