Is your excavator’s hydraulic system losing speed and power as the oil heats up during tough work shifts? Wide clearance between a worn cylinder face and a scored valve plate allows high-pressure oil to slip past the seals, causing sluggish machine performance and driving up fuel consumption. Restore your pump's power with the matched RITO 321701 rear rotor group.
Item NO.:
321701Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time:
2-3 DAYSWholesale parts managers need reliable, long-lasting pump rebuild components to satisfy demanding repair shop clients. The RITO 321701 kit features micro-lapped sealing surfaces that maintain a tight fluid seal under high operating pressures. Stock this premium rotor set to give your clients a reliable solution for heavy-duty pump overhauls.

| Part Number | 321701 |
|---|---|
| Part Name | Hydraulic Pump Rotor Group Excavator Parts Repair Block Set |
| Compatible Brand | Tongmyung |
| Applicable Models | PC300-7, PC350-7, PC300-8 Excavators |
| Application | Excavator hydraulic system |
| Material | High‑strength Alloy Steel |
| Product Color | Polished Steel Silver |
| Working Temperature | -25°C to 120°C |
| Key Function | Housing piston shoes and routing rear fluid flow within the pump assembly |
| Condition | 100% New, Aftermarket / OEM Quality |
| Packaging | Wooden Case/Reinforced Carton/Neutral Packing / Customized Box |

The barrel face and rear valve plate are lapped together to prevent high-pressure fluid leaks.

High-lead bronze layer ensures excellent sliding properties even during low-lubrication startups.

Smooth piston chambers minimize frictional drag and extend the lifespan of piston rings.


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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