Genuine AP Original Mk3 Cooper S and 1275GT servo is now supplied as this universal kit for single line brake systems. The original mini type brackets as fitted to the Cooper S MK3 are available as 26/30.21A2254 It is recommended to fit an in line valve available as 26/30.17H2646 to stop fuel contaminating the servo diaphragm. Boost ratio is 1.90-1 as per originals.
