Seeing reduced hydraulic pressure or pump noise on your PC300-7? A worn 716776 front cylinder block is usually the root cause. RITO supplies this precision cylinder block for K3V112DP pumps, restoring stable oil flow and full machine performance at a fraction of OEM cost.
Item NO.:
716776Order(MOQ):
1pcsPayment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANShipping Port:
Huangpu,GuangzhouLead Time:
In Stock716776 Cylinder Block Front - precision machined for Kawasaki K3V112DP piston pumps in PC300-7, PC360-7 and PC400-7 excavators. High-strength alloy with precision-ground barrel bores ensures stable flow and long service life. Direct replacement for 716777 and 642401.

| Part Number | 716776 |
|---|---|
| Part Name | Excavator Hydraulic Cylinder Block (Front) |
| Compatible Brand | TONG MYUNG (Kawasaki K3V112DP Pump) |
| Applicable Models | PC300-7, PC360-7, PC400-7 Excavator |
| Application | Excavator hydraulic piston pump rotating group |
| Material | High-strength alloy steel |
| Product Color | Silver machined metal finish |
| Working Temperature | -25°C~+60°C |
| Key Function | Maintains stable oil flow and pressure in the piston pump |
| Condition | 100% New Aftermarket OEM Quality |
| Packaging | Wooden Case Reinforced Carton Neutral Packing Customized Box |

Precision-ground cylinder bores maintain stable oil flow and reduce internal leakage for consistent pump output.

Manufactured from high-strength alloy steel for excellent wear resistance and long service life under heavy loads.

Engineered to match K3V112DP OEM dimensions for direct replacement on PC300-7, PC360-7 and PC400-7 excavators.

Replaces worn rotating group parts to restore hydraulic pressure, digging force and overall machine productivity.

FAQ
Q: What are the common symptoms of a failing 716776 cylinder block?
A: Check for reduced hydraulic pressure, weak digging force, abnormal pump noise, rapidly rising oil temperature and metal particles in the hydraulic oil - all typical signs of a worn cylinder block.
Q: What should be checked before installing the 716776?
A: Inspect the piston shoes, valve plate and barrel bores for scoring, flush the hydraulic system and replace filters, and ensure the pump housing is free of debris before assembly.
Q: Is this 716776 a genuine OEM or aftermarket part?
A: This is a 100% new aftermarket assembly manufactured to OEM specifications. RITO HYDRAULIC is a listed supplier to major Chinese excavator OEMs and Fortune 500 companies.
Q: How to confirm the 716776 fits my excavator model?
A: Cross-check your existing part number against 716776. This cylinder block fits K3V112DP pumps on PC300-7, PC360-7 and PC400-7 excavators. Contact our technical team with your serial number for compatibility confirmation.
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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