Hydraulic Main Control Valve 332-7934 194-9979 373-7026 for E307D E308D E308E Excavator

This hydraulic main control valve assembly is the core distribution component of the excavator hydraulic system, compatible with E307D, E308D, and E308E models. It controls the flow and pressure of hydraulic oil for the boom, arm, bucket, and travel functions. Manufactured to strict standards, it delivers stable performance and reliable sealing, making it suitable for equipment repair and replacement.

• Slow movement of boom, arm, or bucket
• Unstable action or jitter during operation
• Oil leakage from valve joints and sealing surfaces
• High hydraulic system pressure with frequent relief
• Single action no response or weak power

• Confirm machine model before ordering
• Check part number to match your old valve
• Test before installation; replace sealing kits together if needed
• Keep clean during installation to avoid dirt entering the hydraulic circuit