I'd NEVER heard of a boat breaking a crank, until March of this year. I bought my boat in January and ran it home from Boca Raton to Pensacola, Fl, about 500 miles. The first trip out, after running fine for maybe 7-8 hours, the port motor, a VTA903, broke the crankshaft between 1st and 2nd rod journals. parts are available, we found everything needed for a MOH. Also, the USCG is still running alot of 903's, atleast in this area. If they ever de-commission them there'll be tons of surplus parts.