Experiencing main motor overheating, sluggish attachment lifting, or severe system pressure drops during heavy digging operations? Scored timing faces on your port plates let high-pressure fluid bleed off internally into the suction side, lowering volumetric efficiency and driving up fuel costs. Overhaul your hydraulic system with the high-precision RITO 138851 valve plate.
Item NO.:
138851Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time:
2-3 DAYSRebuild shops require durable timing components that can handle continuous high-frequency piston tracking without surface scoring. Our premium RITO 138851 motor valve plate features a bimetallic structure that provides excellent friction control and fluid sealing. Keep this critical repair component in stock to ensure reliable, high-quality pump overhauls.

| Part Number | 138851 |
|---|---|
| Part Name | Hydraulic Motor Valve Plate Piston Pump Valve Plate |
| Compatible Brand | Tongmyung |
| Applicable Models | Excavator Swing Motor Series using M2X210 Rotating Groups |
| Application | Excavator hydraulic system |
| Material | High‑strength Alloy Steel |
| Product Color | Polished Steel Silver |
| Working Temperature | -35°C to 115°C |
| Key Function | Providing precise fluid timing and high-pressure sealing within the cylinder group |
| Condition | 100% New, Aftermarket / OEM Quality |
| Packaging | Wooden Case/Reinforced Carton/Neutral Packing / Customized Box |

Machined strictly to universal standard dimensions for straightforward motor reassembly.

Bonded bronze composition delivers excellent anti-galling protection during high-heat startup conditions.

Curved fluid port passages minimize hydraulic cavitation erosion and lower system operational noise.


FAQ
A: We provide original, OEM, and high-quality aftermarket versions with stable supply capability.
Q:Why Choose RITO?
A:Listed Factory
Stable&Reliable Quality
OEM Factory for Chinese Top Excavator Brands
Supplier to Fortune 500 Companies
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