This is a complete 25D Electronic replacement distributor. Includes the correct 25D body and the proper adjustable push on type vacuum advance. All brand new parts. Fits all MGAs, MG Midgets and Austin Healey Sprites through 1967, MGB's through 1967, Triumph TR3s, TR4s and TR-4As. Includes new cap and rotor. (Side entry distributor cap also available for the same price, just ask.) ALL NEW PARTS. Ready to drop in your car. These are for POSITIVE ground cars ONLY.