This original quality outer cover, OE part number 2720100631, is specially designed and fully compatible with Mercedes-Benz M272 and M273 series engines. It acts as an essential protective and sealing outer shell for engine crankcase ventilation and oil-gas separation assembly. Adopting high-density durable materials same as original standards, it owns outstanding high temperature resistance, deformation resistance and anti-aging performance, adapting to long-term high-load working environment under the hood. The precise molding process ensures perfect sealing performance, effectively avoiding oil leakage, air leakage and component damage. It can well replace the old or damaged original cover, eliminate abnormal engine noise and crankcase pressure failure. Simple and quick direct installation without any cutting or modification. Each product undergoes strict quality inspection to guarantee stable performance, long service life and high cost performance, which is an ideal replacement part for Benz engine maintenance.