This is a brand Carburetor rebuild kit for tractor model 170 with carb number 13294. This is used on Case/models 300, 400, 500, 600, 504, 544, 656, 666, industrials 580CK all models with carburetor part numbers 13328, 13106, 12534, 12509, 12685, 13384, and 13716. Be sure to add me to your !Thanks For Your Business!! azck05