All of our new parts are aftermarket replacements. Compatible with John Deere Excavator(s) 120. Compatible with John Deere Rotary Cutter / Chopper(s) 115 (112, 118), 120. Replaces John Deere OEM Number(s) P57624, P59855. Replaces Mfg Number(s) 5V800/03. For flail shredders with standard, hard surfaced or 68° knives. All States Ag Parts Item No.