4TR NCB144 Lucas type external alternator electronic control box

4 or 3 terminal electronic voltage control for alternators. This is a direct replacement for the Lucas 4TR (GEU6609) box and fits without the need for any modifications. Fits some Jaguars 420, E-types and Mk10s as well as some Minis, Stags and Triumphs with . This electronic regulator is made in England.\n!!<>!!Please choose 4 or 3 terminal model from the menu below.!!<>!! (Not Lucas branded)