Pump output dropping or efficiency falling on your PC190LC-8? A worn 708-3M-04161 swash plate assembly causes the barrel assembly to tilt at the wrong angle, reducing effective piston stroke and cutting flow output below demand. RITO supplies this precision swash plate to restore full pump displacement and hydraulic power.
Item NO.:
708-3M-04161-DMOrder(MOQ):
1pcsPayment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANShipping Port:
Huangpu,GuangzhouLead Time：
In Stock708-3M-04161 Swash Plate Assembly for Komatsu PC190LC-8 excavator hydraulic pump. The swash plate is the angle reference for every piston stroke; its surface finish, flatness and bearing seat geometry determine volumetric efficiency across the full displacement range. RITO machines this assembly to OEM angle specification and surface finish for immediate full-output performance.
| Part Number | 708-3M-04161 |
|---|---|
| Part Name | Swash Plate Assembly |
| Compatible Brand | Komatsu |
| Applicable Models | PC190LC-8 Excavator Hydraulic Pump |
| Application | Sets piston stroke angle to control displacement in the PC190LC-8 main piston pump |
| Material | High-strength alloy steel, precision-ground sliding face |
| Product Color | Silver machined finish |
| Working Temperature | -25°C~+60°C |
| Key Function | Controls effective piston stroke length and therefore pump displacement and output flow |
| Condition | 100% New Aftermarket OEM Quality |
| Packaging | Wooden Case Reinforced Carton Neutral Packing Customized Box |
Swash plate sliding surface ground to Ra 0.4 and flatness within 3 micrometres, minimising piston shoe drag and slipper wear at full displacement.
Plate angle machined to OEM specification for PC190LC-8, ensuring pistons reach full stroke at maximum displacement without bottoming on the barrel bore.
Trunnion pivot seats case-hardened to resist the oscillating loads applied by the servo actuator as it adjusts swash plate angle during power-limit control.
All mounting geometry matches 708-3M-04161 OEM dimensions for direct assembly inside the existing PC190LC-8 pump housing without machining.
FAQ
Q: How do I know if the 708-3M-04161 swash plate on my PC190LC-8 needs replacing?
A: Pump flow at rated speed falls below specification on a flow meter test, piston slipper faces show scoring or uneven wear patterns, and the pump case drain flow increases - all indicate swash plate surface wear.
Q: Should I replace the piston shoes at the same time as the 708-3M-04161 swash plate?
A: Yes. The piston shoe sliding faces wear in a matched pattern with the swash plate. Fitting a new flat swash plate against worn shoes causes concentrated edge contact, rapidly re-scoring the new surface.
Q: What causes premature swash plate failure on the PC190LC-8?
A: Contaminated hydraulic oil, prolonged operation at maximum pressure without adequate cooling, or excessive case-drain pressure that forces the slipper pads off the swash plate surface are the main causes of premature wear.
Q: How to confirm 708-3M-04161 fits my PC190LC-8 pump?
A: Check the pump model tag for PC190LC-8 specification and match the existing swash plate part number 708-3M-04161. Contact our team with the pump serial number for 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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