Fit N46B20 2.0L L4(1995cc) Naturally aspirated Engine. RACEORLY Number：. BMW N46B20 2.0 L4 Naturally aspirated. 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.
