Mivec Rocker Arm Spring - Mitsubishi FTO - Mivec Models This part of the Mivec valve train and helps dampen the thump of the valve train and acts as a sort of return spring. People do mistake them for a hydraulic tappet but they are NOT. They are simply a spring inside a housing. Exploded Diagram HERE Mitsubishi Part Number MD194250
DISCONTINUED - NO LONGER SUPPLIED BY MITSUBISHI