This a new voltage regulator (control box) for Austin and Morris Mini to 1967 Austin Healey Sprite & MG Midget 1962 to 1969, MGA MkII,, Triumph TR3, TR4, TR4A With plug-in terminals.Modern batteries cannot take the voltage output of the generators and need to be reduced to get the longest life out of your battery.C.R. 37183, 37264, 37290, 542-100, 542-101, NCB101








