Internal scoring on your pump's cylinder block faces drops volumetric efficiency, slowing down your machine's cycle times. Worn rotor groups generate excessive friction heat, which risks seizing the entire hydraulic main pump. Rebuild your pump using the high-precision RITO 321701 cylinder block.
Item NO.:
321701Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time:
2-3 DAYSRestore peak operating pressures and smooth control responses during demanding heavy-duty operations. Wholesale procurement teams rely on the RITO 321701 rotor group assembly to provide excavator rebuild shops with long-lasting parts that lower total repair costs.

| Part Number | 321701 |
|---|---|
| Part Name | Hydraulic Pump Rotor Group Excavator Pump Repair |
| Compatible Brand | Tongmyung |
| Applicable Models | PC350-7, PC360-7 Excavators |
| Application | Excavator hydraulic system |
| Material | High‑strength Alloy Steel |
| Product Color | Polished Steel Silver |
| Working Temperature | -25°C to 120°C |
| Key Function | Holding pump pistons and creating fluid displacement |
| Condition | 100% New, Aftermarket / OEM Quality |
| Packaging | Wooden Case/Reinforced Carton/Neutral Packing / Customized Box |

Combine durable steel blocks with a low-friction bronze layer to reduce operating wear.

Minimize internal oil slippage around pistons to maximize pump volumetric output.

Deliver a flat, flush fitment to eliminate high-pressure fluid leaks.


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
Leave A Message
Scan to wechat :