S4K S4KT Overhaul Rebuild Kit (No Liner) For Mitsubishi CAT E120B E312 E320 Excavator Engine PartsS4K S4KT Overhaul Rebuild Kit (No Liner) For Mitsubishi CAT E120B E312 E320 Excavator Engine Parts Condition: Brand New, Aftermarket Parts Application: Mitsubishi S4K Engine Item Includes: 4 PCS Piston 4 PCS Pin 8 PCS Circlip 1 Set Piston Rings ( Fit For One Engine ) 1 Set Full Gasket Kit 1 Set Main Bearing 1 Set Con Rod Bearing 1 Set Thrust Washer 4 PCS Intake Valve 4 PCS Exhaust Valve 8 PCS Valve Guide ( IN & EX ) 8 PCS Valve Seat ( IN & EX )