Premium China Alternative for JCB Machine Stability - Fix Hydraulic Pressure Abnormalities
We are a leading original factory source providing global export for high-end engine components. Our engineering team supports custom development for various engine cylinder liners including:
Caterpillar C9 Cylinder Liner - Industrial Grade Casting
Komatsu 6D102 Liner Kit - Precision Machined Wear Resistance
Cummins QSB6.7 Engine Sleeve - Advanced Thermal Protection
Isuzu 4HK1 Liner Set - High-Pressure Tolerance Performance
| Specification Detail | Product Information |
|---|---|
| Brand Compatibility | JCB Excavator & Backhoe Loader |
| Primary Part Number | 25929310 |
| Alternative Part Number | 25929310 (No Symbols) |
| Product Name | JCB High-Pressure Relief Valve / Safety Valve |
| Machine Application | JCB 3CX, 4CX, JS130, JS220 Series |
| Quality Level | Premium China Alternative (OEM Grade Quality) |
Engineered specifically for JCB Excavator hydraulic systems and construction machinery pressure management.
Eliminates hydraulic pressure fluctuations and solves system overheating or lifting power loss.
Corrosion-resistant steel construction ensures long-term durability in harsh mining environments.
Strict ISO certification standards for high-precision pressure relief thresholds.
Cost-effective solution compared to original assembly without compromising machine safety.
Honour Time Machinery Limited specializes in the distribution of high-performance engine assemblies and internal components for world-class brands including Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai.
| Component Category | Available Engine Parts |
|---|---|
| Cylinder System | Cylinder Liner, Piston, Piston Ring, Cylinder Block, Cylinder Head |
| Bearing & Rotation | Crankshaft, Main Bearing, Connecting Rod Bearing, Thrust Washer, Connecting Rod |
| Sealing & Overhaul | Full Gasket Kit, Head Gasket, Valve Seat, Valve Guide |
| Fuel & Turbo System | Diesel Fuel Pump, Fuel Injector, Turbocharger, Nozzle |
| Cooling & Control | Water Pump, Oil Pump, Fan Cooling, Radiator, Thermostat |
| Electrical & Motion | Accelerator Motor, Pressure Switch, Flameout Solenoid, Monitor, Transmitter, Belt |
We supply wholesale engine parts for the following global machinery brands:
| Manufacturer | Compatible Engine Models |
|---|---|
| Komatsu | 3D82, 3D84, 4D105, 6D95, 6D108, 6D110, 4D84, 4D95, 6D102, 6D105, 6D114, 6D170 |
| Caterpillar | 3114, 3116, C4, C6, 3064T, S6K, C7, C-9, C13 |
| Mitsubishi | 4D34, 4D24, K4M, S3Q2, 6D16, 6D24, S4KT, 6D40 |
| Isuzu | 3LD1, 4LE1, 4BG1, 4HK1, 6SD1, 6WG1, 4LE2, 4JB1, 6BG1, 6HK1, 6WF1 |
| Yanmar | 4D88E, 4TNE84, 4TNV88, 4TNV94L, 4TNE88, 4TNE94, 4TNV98, 4TNV106 |
| Cummins / Volvo | QSB6.7, QSM11, B5.9-C, D6D, D6E, D9E, D12D, D7D, D12E |
1. Turbocharger: Installed on the engine exhaust manifold (e.g., Caterpillar 320D) to increase air intake efficiency.
2. Fuel Injector: Located in the cylinder head (e.g., Komatsu PC200-8) to atomize diesel for combustion.
3. Main Relief Valve: Mounted on the hydraulic control valve (e.g., JCB JS220) to limit maximum system pressure.
4. Crankshaft: The central rotating shaft within the engine block (e.g., Cummins 6BT) converting piston motion to rotation.
5. Water Pump: Part of the cooling system (e.g., Isuzu 4HK1) used to circulate coolant through the radiator.
6. Piston Ring: Sealing rings on the piston head (e.g., Yanmar 4TNV94) preventing gas leakage and regulating oil.
7. Alternator: Mounted to the engine side (e.g., Kubota V2403) to generate electricity for the battery and monitor.
8. Cylinder Head Gasket: Placed between the head and block (e.g., Weichai WD615) to seal the combustion chamber.
9. Oil Pump: Driven by the crankshaft (e.g., Caterpillar C15) to provide lubrication to all internal moving parts.
10. Camshaft: Controls the opening and closing of valves (e.g., Komatsu 6D107) synchronized with engine cycles.
Problem: The machine exhibits slow movement and low lifting force when the oil temperature rises.
Diagnosis: Leakage or spring fatigue in the 25929310 Relief Valve leads to premature pressure dumping.
Solution: Replace the old unit with a high-precision 25929310 Relief Valve from Honour Time. Ensure the hydraulic oil is clean and filtered to avoid debris contamination.
For engines like the Cummins QSM11, always check the Oil Pump and Gasket Kit integrity every 2000 hours of operation to prevent sudden oil pressure drops that lead to crankshaft damage.
| Model NO. | JCB 25929310 | Application | Excavator / Loader |
| Certification | ISO9001 / CE | Condition | Brand New Alternative |
| Origin | China | Capacity | 5000 PCS/Year |
| Payment | T/T, Western Union, MoneyGram | ||
| Shipping | DHL, Fedex, EMS, UPS, Air Cargo, Sea Freight | ||
Company Profile: Honour Time Machinery Limited is a professional supplier dedicated to providing high-quality engine assemblies and spare parts. We specialize in global distribution of reliable engine components for major industrial brands, ensuring your construction machinery maintains peak operational efficiency worldwide.
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