Fan belt and idler pulley is NLA through MTD. The idler pulley bearing locked up and took the belt out also. Burned in two at the crank pulley. When these pulleys lock up they don't get fixed by squirting a bit of oil in them, get them to turn and think they are good to go at 3000 rpm for hours at a time. This pulley is a narrow V type being 13/32" wide so a standard V belt pulley won't work as the belt drops to the bottom of the groove. The majority of "tensioner pulleys" are made to run on the top of the belt like many of the deck belts, drive and PTO belts. NAPA list an A belt the correct length (27") but it is to wide for the fan shaft and crank pulleys as it only drops 1/2 way into the V grove. I did find the correct belt on the internet and have it on the way. Now to find the pulley for a 13/32" wide belt. Any of you that are running the Cub 1512 with the Kubota diesel I strongly suggest you start looking for the pulley and belt now so your not in the middle of using the tractor and it gets park while your looking for these two parts. The pulley number is 756-3032. Belt number is 754-3022. Mine was original when it let go. Possibility of grinding the bearing crip off the bearing on the pulley, press it out and replace the bearing. My have to go that route. Can't trust the pulley any more this way.