Mündliche Prüfung »   Cummins STC Oil Control Valve

The Cummins STC (Step Timing Control) oil control valve (part #3071599) is a critical component in high-pressure fuel systems, particularly in ISX engines. It regulates oil flow to the STC piston, ensuring proper timing for optimal engine performance. When this valve fails, it can lead to significant engine issues.
https://www.cq-longshine.com/cummins-fuel-pump-parts/cummins-stc-oil-control-valve-3071599