This EBC Clutch Component is designed to fit model years Yamaha DT 400 MX 1977 1978 1979. Title: EBC Motorcycle Clutch ComponentYamaha DT 400 MX 1977-1979. Model: DT 400. Model: DT 400 MX. EBC produce a clutch tool for almost every clutch plate design known and all are listed in the main EBC application catalogue.