Product Overview 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. Interchange Part Numbers: 332-7934, 194-9979, 373-7026