PRODUCT HIGHLIGHTSThickened forged aluminum piston body resists thermal deformation, solve common failure of cylinder scoring and piston melting of 4M40 engine under long-term heavy load operation One-to-one OEM size replication of 95mm OD and 30*78mm wrist pin avoids secondary grinding processing during engine overhaul, shorten maintenance cycle and labor cost Complete OEM code marking on piston surface helps auto parts shops classify inventory and pick parts rapidly for