Replacement proportional solenoid valve for Kobelco SK200-3 excavator models. Part YN35V00004F2 (KDRDE5K-20/30C12A-101) operates at 24V. Maintains proper hydraulic flow control for boom, arm, bucket, swing, and travel circuits on SK200-3 excavators, ensuring responsive operation and smooth proportional control that restores full machine performance across all digging, lifting, and positioning tasks.