Take that one off remembering where the hoses were connected or mark them some how and go to a shop that has after market snow machines parts and show them the pump. most all the machines of that vintage can use any pump with the same amount of hoses coming out of it, they might not look the same but they work the same. make sure the hose that comes from the vacuum side of the engine is making vacuum however. If its been setting a long time check the condition of all the hoses. Good luck