Enhance your Classic Mini or Moke's performance with our Valve cotter single groove (1 UNIT=2 HALVES). This Genuine product ensures superior fit and stability compared to other market offerings. Ideal for all pre-1984 12G940 castings and Cooper S models, as well as later 998cc/1098cc production from 1970 onward. It's designed for valves using a collet/keeper with a single narrow groove Pre A Plus, delivering reliable functionality and precision. Valve stems with 3 grooves as used on most A-Plus heads late 1980s onwards. Order the correct cotters to go with the valves you will be using. When ordering these you get two halves to equal one cotter for one valve.At Mini World Australia, we share your passion for all Classic Mini and Moke cars, offering both new and used car parts to keep your beloved vehicle in top shape. Trust us to provide the quality parts you need for an unmatched driving experience.