Sluggish tracking or weak boom lift on the left circuit of your ZX210-5G points to regulator wear. Bad signal metering inside the block stops correct swashplate travel, throwing off multi-function balance.
Item NO.:
312712Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time:
2-3 DAYSBring back balanced hydraulic flow with this premium ZX210-5G left main pump regulator. Built to replace 312712, it provides exact displacement control for HPV118 pump systems.

| Part Number | 312712 |
|---|---|
| Part Name | Excavator Left-Hand Main Hydraulic Pump Regulator Valve |
| Compatible Brand | Tongmyung |
| Applicable Models | ZX210-5G, ZX200-5G, HPV118 Main Hydraulic Pumps |
| Application | Excavator hydraulic system |
| Material | High-Hardness Alloy Steel |
| Product Color | Silver Steel Finish |
| Working Temperature | -20 to 130 degrees Celsius |
| Key Function | Independent Flow Displacement Regulation for the Left-Side Hydraulic Pump Circuit |
| Condition | 100% New, Aftermarket / OEM Quality |
| Packaging | Wooden Case/Reinforced Carton/Neutral Packing / Customized Box |

Matches factory plumbing layouts perfectly for fast connection without bending or straining pilot lines.

Resist fine abrasive wear to ensure smooth, stick-free stroke adjustments across long working shifts.

Withstands high internal pilot pressure spikes without cracking or body distortion.


FAQ
Q: What quality options are available?
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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