If replacing a 2.78″ stator, a rotor will be required.

6V Stator. Replaces Lucas LU47204 RM19 3 lead single phase stator.
Capable of delivering up to 30volts and current up to 20amps, at speeds of up to 10,000 RPM
Originally used on 6V systems.
Amperes: 11.5
Single Phase: Yes
Voltage : 6V
No. of Leads: 3

When fitting to and Ariel Leader or Arrow please use the FA1334Q bolt as the nut is a bit tight.