5655 x 1. This is a top quality re-production voltage regulator, also called a control box for  the C45 dynamo system on all models of the Jaguar XK120. They are made to original specification and come complete with 4 fuses and  layout illustration. An excellent direct replacement product. The lid does not state LUCAS as original, but we can accomodate this, if you require with the purchase of a reproduction lid. Original Ref. C2530. Lucas RF95/2

NOTE: Regulator boxes are not pre-set but are tuned to the electrical ampage demand of the specific vehicle and equipment it is fitted to. Please ensure that you refer to the Jaguar Workshop Manual (Our Part Number 9000) for details of how to adjust the charging system for best performance.