111-9916 Proportional Solenoid Valve Group for Caterpillar CAT Excavator
Designed for the demanding specifications of Caterpillar equipment, the 111-9916 Solenoid Valve offers superior durability for drivetrain and transmission control. It features a fully encapsulated coil that provides exceptional protection against moisture, dirt, and salt spray, making it suitable for off-road and mining applications. The valve’s internal components are treated to resist rust and corrosion, ensuring consistent performance over extended maintenance intervals. With precise amperage draw characteristics, it integrates seamlessly into existing electronic control systems. This part is ideal for reducing parasitic power loss while ensuring smooth gear shifts and reliable attachment engagement.
This 111-9916 proportional solenoid valve group is a critical hydraulic control component for Caterpillar heavy machinery. Mounted on the main pump control valve block, it receives electronic signals from the ECM to precisely adjust pilot oil pressure, regulating the displacement and flow output of the main hydraulic pump to control the speed and force of hydraulic motors and cylinders. Our replacement valve assembly matches the required installation dimensions and hydraulic performance for heavy equipment repair.
| Item | Details |
|---|---|
| OEM Number | 111-9916 (1119916) |
| Part Type | Valve Assembly – Solenoid and Pressure Reducing |
| Voltage | 24V DC |
| Connector | 2-pin waterproof plug |
| Condition | New Aftermarket |
| MOQ | contact us |
Compatible Models
- B Series Excavators: 320B, 325B, 330B
- C Series Excavators: 320C, 325C, 330C
- D Series Excavators: 320D, 324D, 325D, 329D, 330D, 336D, 345D, 349D
- Other Machines: Selected CAT wheel loaders, forestry machines, road rollers and generator sets with hydraulic pilot control systems
FAQs
Q: What is the function of this 111-9916 proportional solenoid valve?
A: It controls the main hydraulic pump by adjusting pilot pressure according to ECM signals. It changes pump displacement and oil flow, managing the speed and power of excavator hydraulic cylinders and motors for smooth machine operation.
Q: What symptoms tell me this proportional solenoid valve needs replacing?
A: Common issues include weak digging power, slow boom or arm movement, unstable machine speed, fluctuating hydraulic pressure, or fault codes related to main pump control on your CAT machine.
Q: Can this valve replace the KDRDE5K-31/40E30 unit?
A: Yes, it is compatible with the Kawasaki KDRDE5K-31/40E30 equivalent assembly. Please confirm your original part number and machine model before ordering.
Q: Any installation recommendations?
A: Clean the hydraulic system thoroughly before installation to avoid contamination. Professional hydraulic technician installation is strongly recommended to prevent internal pump damage and oil leakage.


1119916-soleoid-valve

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