I don't have a source for a new dog but the dog can be turned around and reused (provided that hasn't already been done). Slide the dog off the prop shaft, turn it so that the dogs face in the opposite direction and reinstall. This uses the engaging lugs opposite the ones that are rounded. Good luck!Hi!!!Need some help! Looking for dog clutch for 35 seahorse 1959.Rdsl-21.Can somebody help me with part#?Or direct me to the posible sors for that part? Thanks. Vladimir.