For Komatsu Excavator PC40MR 2 PC45MR 3 PC50MR 2 PC55MR 3 PC60 7 Hydraulic Filter 21W 60 41121 991 10129 For Mustang 519 1750RT MTL316 For Mustang 519 1750RT MTL316 2066 EngineItem Included:4 pcs piston4 pcs piston ring4 pcs piston pin8 pcs piston clip4 pcs Connecting Rod bushing4 pcs Cylinder Liner4 pcs intake valve4 pcs exhaust valve4 pcs intake valve guide 4 pcs exhaust valve guide 4 pcs intake valve seat 4 pcs exhaust valve seat 5 pair main rod bearing 4 pair con rod bearing 4 pcs thrust plate 1 set full gasket kit LC05P00043S001 )PC40MR 2 AC S N 8001 UPPC45MR 3 S N 5001 UPPC45MR 3 S N 5001 UP (North America Spec )PC55MR 3 S N F30003 AND UPPC60 7 S N 45001 UP (For China)