Severe cycle lag and heavy engine bogging on your E330L signal rotor block clearance breakdown. Scored mating faces let high-pressure fluid bypass internal lines, causing extreme heat and stalling output.
Item NO.:
856259Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time:
2-3 DAYSRebuild your hydraulic core with this complete E330L cylinder block valve plate assembly. Part 856259 delivers a factory-grade seal to restore massive breakout force across mining operations.

| Part Number | 856259 |
|---|---|
| Part Name | Hydraulic Pump Rotor Group Cylinder Block Valve Plate Assembly Kit |
| Compatible Brand | Tongmyung |
| Applicable Models | E330L, E330 Large Tracked Excavators |
| Application | Excavator hydraulic system |
| Material | High‑strength Alloy Steel |
| Product Color | Matte Steel Grey |
| Working Temperature | -25°C to 110°C |
| Key Function | Main Rotary Pressure Containment and Port Fluid Distribution Management |
| Condition | 100% New, Aftermarket / OEM Quality |
| Packaging | Wooden Case/Reinforced Carton/Neutral Packing / Customized Box |

Delivers a zero-tolerance hydraulic boundary layer to eliminate internal oil drift across long shifts.

Withstand intense internal pressure expansion stresses to prevent barrel distortion during hard digging.

Resists micro-abrasive erosion from particle debris suspended within contaminated oil systems.


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