The COGENG Komatsu Main Pump Solenoid Valve is a high-precision electro-hydraulic control component designed for Komatsu hydraulic excavators, including the PC200-5, PC220-5, PC210-6, PC150-5, and PC200-3 models. This critical solenoid valve controls the main hydraulic pump output by regulating the pump's swash plate angle, directly affecting machine performance, fuel efficiency, and hydraulic responsiveness.
In Komatsu excavators, the main pump solenoid valve receives electrical signals from the controller (ECU/VCU) and converts them into proportional hydraulic pressure to adjust the pump's displacement. This allows the machine to match hydraulic flow and pressure to the actual load demand – providing smooth operation, precise implement control, and optimal fuel consumption.
Manufactured under ISO9001 certified processes, the COGENG solenoid valve features a durable iron body for structural integrity, premium rubber seals for leak-proof performance, and precision-machined internal components for consistent, reliable operation. Each unit is tested for coil resistance, pressure response, and sealing integrity before leaving the factory.
Why Choose COGENG Komatsu Main Pump Solenoid Valve?
| Feature | Benefit |
|---|---|
| ✅ OEM Cross-Reference | Direct replacement for 708-23-18272, 708-2H-25240, 708-2L-25211 |
| ✅ Proportional Control | Smooth, precise hydraulic response |
| ✅ Durable Iron Construction | Withstands high pressure (up to 5000 PSI) |
| ✅ Leak-Proof Design | Premium rubber O-rings and seals |
| ✅ ISO9001 Certified | Consistent quality you can trust |
| ✅ In Stock | Ready to ship immediately |
| Specification Category | Technical Specifications |
|---|---|
| Compatible Applications | Komatsu Equipment (Compatible with 708-23-18272, 708-2H-25240, 708-2L-25211 applications) |
| COGENG Part Number | CG-KOM-SV-36 |
| Replaces OEM Part Numbers | 708-23-18272, 708-2H-25240, 708-2L-25211 |
| Product Type | Heavy-Duty Electro-Hydraulic Solenoid Valve |
| Operating Voltage | 12V/24V DC |
| Maximum Operating Pressure | 420 Bar (6,100 PSI) |
| Flow Capacity | 30-60 L/min (8-16 GPM) depending on model |
| Fluid Compatibility | Mineral-based, synthetic hydraulic oils (ISO VG 32-68) |
| Temperature Range | -40°C to 130°C |
| Protection Rating | IP67 Sealed Connectors |
| Quality Assurance | 100% Pressure, Performance, and Leak Testing |
| Warranty | 3,000-Hour Warranty |
708-2H-25240
Type: Solenoid Valve Assembly
Application: Hydraulic control systems in large excavators (e.g., PC400 series) 12.
Sourcing:
Supplier: Jining Gaosong Engineering Machinery (Shandong, China)
Status: Genuine Komatsu OEM part 1.
708-2L-25211
Type: Electromagnetic Valve Assembly
Application:
Primary use: PC200-6/PC200-7 excavator hydraulic systems
Compatibility: Also fits PC70-8 and PC130-7 models
Features: Direct-acting spool design for precise flow control.
708-23-18272
Note: No direct match in search results. Verify part number or consult Komatsu technical databases.
Common Komatsu Valve Series:
708-2H-00322: Hydraulic pump valve
708-2L-00522: Main hydraulic pump component
Typical Failures Addressed:
Hydraulic drift (U029 code)
Pressure oscillations (E747 code)
| № | Number | Name | Qty |
| 1 | 20Y-60-X1261 | PUMP GROUP | 1 |
| 2 | 708-25-04051 | PUMP ASS'Y | 1 |
| 3 | 708-25-04014 | PUMP ASS'Y | 1 |
| 4 | 708-25-04013 | PUMP ASS'Y | 1 |
| 5 | 708-25-04012 | PUMP ASS'Y | 1 |
| 6 | 708-25-04613 | • SERVO VALVE ASS'Y,REAR | 1 |
| 7 | 708-25-04612 | • SERVO VALVE ASS'Y,REAR | 1 |
| 8 | 708-25-04911 | •• VALVE ASS'Y,TVC | 1 |
| 9 | 708-23-00451 | ••• BODY ASS'Y | 1 |
| 10 | 708-23-18120 | ••• PISTON | 1 |
| 11 | 708-23-18130 | ••• SLEEVE | 1 |
| 12 | 708-25-18120 | ••• PISTON | 2 |
| 13 | 708-23-18260 | ••• SLEEVE | 2 |
| 14 | 07000-12016 | ••• O-RING | 4 |
| 15 | 07001-02016 | ••• RING,BACK-UP | 4 |
| 16 | 708-23-18161 | ••• SPOOL | 1 |
| 17 | 708-23-18170 | ••• SEAT | 1 |
| 18 | 708-23-18181 | ••• SPRING | 1 |
| 19 | 708-23-15160 | ••• PLUG | 1 |
| 20 | 07000-02018 | ••• O-RING | 1 |
| 21 | 708-23-18210 | ••• COVER | 1 |
| 22 | 01580-10806 | ••• NUT | 1 |
| 23 | 708-23-18272 | ••• SOLENOID ASS'Y | 1 |
| 24 | 07000-02016 | ••• O-RING | 1 |
| 25 | 708-23-18250 | ••• BOLT | 4 |
| 26 | 708-25-15320 | ••• BOLT | 2 |
| 27 | 01602-20619 | ••• WASHER,SPRING | 2 |
Complete System Depressurization: Relieve all hydraulic system pressure and verify zero pressure before beginning installation
Hydraulic Circuit Identification: Document and tag all hydraulic lines for proper reconnection and circuit integrity
Electrical System Safety: Disconnect battery and main power sources; verify zero electrical energy in system
Contamination Prevention: Cap all hydraulic ports immediately upon disassembly to prevent system contamination
Seal Integrity Verification: Inspect and properly install all seals with compatible hydraulic fluid lubrication
System Purge Procedure: Follow proper bleeding and purging procedures to remove air from hydraulic system
Comprehensive Functional Testing: Test valve operation through complete operational cycle and verify leak-free performance
Q: Symptoms of a faulty 708-2H-25240 pump solenoid on a PC200-6?
A: Common signs include weak hydraulic power, all implement speeds slow, engine bogs down or stalls when digging, and active fault codes related to pump proportional valve feedback.
Q: How to test the PC200-5 hydraulic pump solenoid valve?
A: Measure coil resistance (typically 10-15 ohms). Check for clean signal voltage from the controller. Manually push the valve spool to check for mechanical binding. Ensure the pump's internal pilot filter is clean before replacing the valve.
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