Internal leakage and pressure loss in JMV147 pumps often stem from worn piston sets, leading to sluggish excavator movement and high fuel waste. For DH225-7 or R200 operators, a failing 711703 assembly causes uneven hydraulic flow, risking expensive pump barrel scoring and total system downtime.
Item NO.:
711703Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time:
2-3 DAYSOur 711703 piston assembly provides the high-pressure sealing and mechanical strength required for demanding JMV147 units. This precision-lapped component restores hydraulic volumetric efficiency for DH225-7 rigs. For wholesalers, stocking the 711703 ensures a reliable, high-performance solution that reduces warranty claims.

| Part Number | 711703 |
|---|---|
| Part Name | Hydraulic Pump Piston Assembly |
| Compatible Brand | Tongmyung |
| Applicable Models | DH225-7 R200 R215-7 |
| Application | Excavator hydraulic system |
| Material | High‑strength Alloy Steel |
| Product Color | Copper and Steel Silver |
| Working Temperature | -30°C to 110°C |
| Key Function | Hydraulic energy conversion and pressure maintenance |
| Condition | 100% New, Aftermarket / OEM Quality |
| Packaging | Wooden Case/Reinforced Carton/Neutral Packing / Customized Box |

Precision-lapped surfaces ensure a perfect fit within the cylinder block, maintaining stable hydraulic pressure and eliminating internal oil bypass.

Manufactured from premium bimetal materials to endure the high-frequency friction cycles typical of DH225-7 and R200 heavy excavation tasks.

Specifically designed for JMV147 pump series, guaranteeing balanced piston stroke and reducing the risk of catastrophic pump seizures.


FAQ
A: We provide original, OEM, and high-quality aftermarket versions with stable supply capability.
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A:Listed Factory
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OEM Factory for Chinese Top Excavator Brands
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