OMC does not exist any more. I work on a wide variety of small motors. When I look for parts sometime these company’s are repacking China parts and selling them for double the price. Also some of these company s are owned by the Chinese. New old stock is just that old! Watch out for diaphragms or hoses that are marked NOS. I got burned on that more than once. The carburetors for chain saws and leaf blowers purchased from china do amazingly well. If you purchase an outboard carb kit the needle seat may need to be chased with a tap but they seam to work good. I have several China impellers running around here and they are working. I guess ya just gotta take a chance!
dale