Komatsu 708-2L-31411 Hydraulic Pump is the OEM-grade main hydraulic power unit engineered exclusively for 20-ton Komatsu construction excavators, compatible with the below machine models:
Komatsu PC200-8 Standard Chassis Excavator
Komatsu PC200LC-8 Long Track Excavator
Komatsu PC210-8 Same Platform Excavator
All mounting flanges, oil port positions and wiring harness connectors strictly follow OEM dimensional standards. The unit can directly replace the original stock Komatsu 708-2L-31411 Hydraulic Pump on target machines. No hydraulic pipe cutting, wiring rewiring or structural modification is required, which greatly cuts down on-site refitting labor and equipment downtime.
Product drawing
| Pump Type | Integrated tandem variable displacement piston pump |
| Single Pump Displacement | 102cc/r |
| Total Dual Pump Displacement | 204cc/r |
| Rated Working Pressure | 34.3MPa |
| Maximum Peak Pressure | 37.3MPa |
| Matching Rated Engine Speed | 1900–2000rpm |
| Max Output Flow (2000rpm) | 380L/min |
| Overall Gross Weight | 135kg |
Main Features
OEM-Matched Energy-Saving Electronic Control System
This Komatsu 708-2L-31411 Hydraulic Pump adopts the identical PC proportional solenoid valve as original factory assemblies, supporting precise signal interaction with the PC200-8 excavator main controller. It automatically reduces pump displacement and fuel consumption under light-load working conditions, while outputting full hydraulic power for heavy digging tasks. It achieves approximately 12% fuel efficiency improvement compared with older generation pumps, and perfectly matches the power curve of SAA6D107 engine to solve engine stall and speed drop issues during excavation.
Compact Tandem Pump Layout for Smooth Combined Actions
The integrated dual-pump housing applies combined oil supply logic. Operators can simultaneously complete boom lifting, arm retracting and walking movements without obvious power attenuation or action delay. The overall outline dimension fits the PC200-8 engine compartment space precisely with zero assembly interference.
Wear-Resistant Self-Lubricating Design to Extend Service Lifespan
All internal friction contact surfaces receive wear-strengthening treatment, equipped with an independent oil replenishment self-lubricating circuit. It eliminates dry friction and component scoring under low-speed no-load status. The pump shows outstanding durability under high-frequency heavy-duty working scenarios such as earthmoving and hydraulic hammer breaking, lowering frequent maintenance costs and production halt losses.
Plug-and-Play OEM Replacement, Low Maintenance Cost
All oil ports, flange mounting holes and solenoid wire connectors are fully replicated to original OEM standards. When the original hydraulic pump breaks down, direct replacement is available without any modification on hydraulic pipelines or wiring harnesses, significantly shortening equipment repair cycles.
Dual Pressure Protection to Secure Entire Hydraulic Circuit
Built-in overflow pressure relief loop automatically releases excess pressure to buffer impact force during overloaded digging. An independent oil drain heat dissipation channel stabilizes hydraulic oil temperature during long continuous shifts, providing comprehensive protection for downstream hydraulic components including multi-way control valves, hydraulic cylinders and travel/swing motors.
Heavy-Duty Anti-Corrosion Site Protection Structure
Thickened cast iron shell paired with integrated lifting lugs minimizes collision damage during transportation and hoisting. Waterproof connectors are fitted for solenoid valve wiring harnesses to avoid short-circuit faults in muddy, watery and dusty outdoor construction environments.
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