Fit M271.950 / M271.955 / M271.954 / M271.948. RACEORLY Number：. C230 2003-2005 W203. The third oil ring is upgraded with a split design. It can also boost the durability of piston rings, make the load distribution reasonable among ring pieces, extend the maintenance cycle, cut user's maintenance cost and vehicle maintenance frequency, and ensure the efficient and stable operation of the engine.
