Grey Wolf has a Vetus M4.17 (marinised Mitsubishi) Engine 42Hp complete with TMC60E 2:1 gearbox, fitted in 2011 by NWAME, I am happy with it, had no problems with it. It replaced a Mermaid Meteor II (marinised Ford) which had given 16 years service, it in turn replaced the original 4107 that threw a small end and would have required a set of four new pistons and cylinders and new gearbox.