Experiencing heavy structural vibration, grinding noises, or quick piston shoe failures inside your main hydraulic pump? When a worn main shaft gets pitted or distorted, the internal components tilt unevenly, leading to rapid component scoring and expensive pump failures. Restore perfect variable stability using the high-precision RITO 321709 hydraulic pump drive shaft.
Item NO.:
321709Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time:
2-3 DAYSThe rugged RITO 321709 provides a straight, rigid sliding zone that keeps your variable rotating components properly aligned. Stock this robust replacement shaft to ensure reliable and lasting pump rebuild projects.

| Part Number | 321709 |
|---|---|
| Part Name | Excavator Main Pump Shaft Piston Pump Shaft Part |
| Compatible Brand | Tongmyung |
| Applicable Models | PC300-7, PC350-7, PC360-7 Excavators |
| Application | Excavator hydraulic system |
| Material | High‑strength Alloy Steel |
| Product Color | Polished Steel Silver |
| Working Temperature | -35°C to 115°C |
| Key Function | Transferring engine mechanical power into the internal pump rotating groups |
| Condition | 100% New, Aftermarket / OEM Quality |
| Packaging | Wooden Case/Reinforced Carton/Neutral Packing / Customized Box |

High-tensile alloy material resists fatigue, distortion, and micro-cracking under maximum system pressures.

Spline surfaces are ground to exact metrics to provide ultra-smooth internal component movement.

Precision-machined line balance prevents destructive harmonic vibrations from destroying adjacent cylinder components.


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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