Detroit model 50437001, serial 4db047542. Removed from crane that rolled off trailer while unloading. Engine was run momentarily after crane was righted. Sat for 2yrs before crane was scrapped. Engine is all that's left, trans and hydraulic pumps are still attached and in working order. This is for pick-up only, absolutely no shipping. Due to unpaid buyers, I need to be contacted before sale ends or offer will be cancelled.