Experiencing severe main system pressure fade, heavy pump casing vibrations, or weak bucket breakout forces during critical loading shifts? Scored piston slippers or loose spherical socket crimps allow high-pressure fluid to slip straight back into system return channels, dropping pump efficiency and forcing your engine to work harder to move less dirt. Overhaul your hydraulic core with the high-precision RITO 311504 piston assembly today.
Item NO.:
311504Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time:
2-3 DAYSHeavy equipment engineering shops cannot risk customer complaints over weak hydraulic pressure following a major pump overhaul. Our premium RITO 311504 utilizes a forged high-strength steel shaft fused to a micro-plated bronze slider base to ensure excellent galling resistance under full pressure. Keep this high-demand service item in your warehouse stock to fulfill urgent client repair requests instantly.

| Part Number | 311504 |
|---|---|
| Part Name | Piston Assy Hydraulic |
| Compatible Brand | Tongmyung |
| Applicable Models | HD450VII Excavators with A8V55 Pumps |
| Application | Excavator hydraulic system |
| Material | High-Hardness Alloy Steel |
| Product Color | Polished Steel Silver and Bright Golden Bronze |
| Working Temperature | -35°C to 125°C |
| Key Function | Reciprocating within the cylinder bores to compress hydraulic oil and build system pressure channels |
| Condition | 100% New, Aftermarket / OEM Quality |
| Packaging | Wooden Case/Reinforced Carton/Neutral Packing / Customized Box |

High-density copper alloy base layer offers exceptional anti-friction properties against the swash thrust wear plate.

Strong mechanical socket heads allow wide tilting angles without developing dangerous axial play or loosening.

Internal micro-channels route pressurized fluid underneath the slipper to lower friction heat and balance piston lift forces.


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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