This head Fits for coats machines with a tapered hole on the end of the plunger shaft that the head attaches to. This is a set of 5 aftermarket replacement plastic mount demount heads are designed for Coats tire machine / changers It replaces for Coats 8183061, 183061, 8182960, 182960, 8183060, 183060, 8182788, 182788.Please confirm the model This plastic head fits Coats Models 5030 5040 5050 5060 5065 6050 6060 6065 7050 7055 7060 7065 7660 7665 all base line models may fit others as well Fits for Coats Models: .