Compatible with models:

125 cc models:
Vespa 125 (VNB) (from 1959 to 1965)
Vespa GT 125 (VNL) (from 1961 to 1973)
Vespa GTR 125 (VNL2T) (from 1969 to 1978)
Vespa Super 125 (VNC) (from 1965 to 1969)
Vespa TS 125 (VNL3T) (from 1975 to 1978)

150 cc models:
Vespa 150 (VBA / VBB) (from 1958 to 1967)
Vespa GL 150 (VLA1T) (from 1962 to 1964)
Vespa Sprint 150 (VLB1T) (from 1965 to 1974)
Vespa Sprint Veloce 150 (VLB1T) (from 1969 to 1979)
Vespa Super 150 (VBC1T) (from 1965 to 1979)

180 / 200 cc models:
Vespa SS 180 (VSC1T) (from 1965 to 1968)
Vespa Rally 180 (VSD1T) (from 1968 to 1973)
Vespa Rally 200 (VSE1T) (from 1972 to 1979)