Durable Engineering Solutions for Global Construction Machinery
Are you facing pressure drops or slow hydraulic response in your JCB equipment? Our JCB Main Relief Valve 25618901 (25618901) is the ultimate high-quality China replacement part designed to solve common system failures. This precision-engineered valve restores optimal pressure levels, ensuring your excavator operates with maximum efficiency.
| Item Description | Detail Information |
|---|---|
| Brand Compatibility | JCB |
| Primary Part Number | 25618901 |
| Alternate Part Number | 25618901 (No symbols) |
| Product Name | JCB Main Relief Valve |
| Certification | ISO9001 / CE |
| Condition | Brand New - High Quality Replacement |
| Production Capacity | 5000 PCS / Year |
| Origin | China Source Factory |
We specialize in providing comprehensive engine assemblies and spare parts for world-leading brands. Our main business covers Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai. We focus on durability and precision fitment for all heavy-duty applications.
We provide a wide range of engine parts including: Cylinder Liners, Pistons, Piston Rings, Crankshaft Main Bearings, Connecting Rod Bearings, Thrust Washers, Overhaul Gasket Kits, Diesel Fuel Injection Pumps, Fuel Injectors, Crankshafts, Turbochargers, Water Pumps, Oil Pumps, Cylinder Blocks, Cylinder Heads, and Connecting Rods.
Heavy duty engine overhaul kit, aftermarket excavator hydraulic valves, Cummins diesel engine block replacement, Komatsu PC series piston kit, Caterpillar engine gasket set, Isuzu 4HK1 fuel injector price, Yanmar marine engine spare parts, Weichai engine parts exporter, high pressure relief valve for excavators, wholesale diesel engine crankshafts, precision engine connecting rod, excavator oil pump assembly, durable engine cylinder head, turbocharger for construction machinery, industrial water pump replacement, engine thrust washer set, reliable diesel fuel pump, professional engine liner kit, OEM quality piston ring set, engine bearing factory China.
We provide parts for the following engine models and brands to ensure your fleet never stops moving.
| Brand | Supported Engine Models | |
|---|---|---|
| Komatsu | 3D82, 3D84, 4D105, 6D95, 6D108, 6D110 | 4D84, 4D95, 6D102, 6D105, 6D114, 6D170 |
| Kobelco | J05E, 6D34T, 6D16, J08E, 6D22T | 6D24T, 6D16T, J05E, 6D34, J08E |
| 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 |
| Hino | J05E, J08E, V25C, EF750, P11C, V21C | H06CT, H07D |
| Cummins | QSB6.7, QSM11-C, B5.9-C, B3.9-C | QSM11, C8.3-C |
| Volvo | D6D, D6E, D9E, D12D, D7D, D7E | D12E, D16D |
Cylinder Liner: Located in the engine block. Example: Caterpillar 330D uses premium liners for piston guidance.
Piston Ring: Mounted on the piston. Example: Komatsu PC200-7 requires precise rings for compression.
Main Bearing: Supports the crankshaft. Example: Isuzu 6HK1 engine utilizes heavy-duty bearings for stability.
Fuel Injector: Installed in the cylinder head. Example: Cummins QSB6.7 relies on injectors for fuel atomization.
Turbocharger: Attached to the exhaust manifold. Example: Yanmar 4TNV98 uses turbos to increase air intake efficiency.
Water Pump: Front of the engine. Example: Kubota V2403 water pumps prevent overheating during operation.
Oil Pump: Inside the oil pan area. Example: Caterpillar C9 oil pumps ensure lubrication of moving parts.
Crankshaft: Core of the engine block. Example: Mitsubishi 6D16 crankshafts convert linear motion to rotation.
Gasket Head: Between block and head. Example: Hino J08E head gaskets prevent combustion leaks.
Radiator: Front of the machine. Example: Weichai WD10 radiators dissipate engine heat effectively.
Common Issue: Excavator Boom Drifting or Weak Digging Power on JCB JS220.
Diagnostic: Often caused by a worn or contaminated Main Relief Valve (Part 25618901).
Solution: Inspect the valve for debris. If the internal spring is fatigued, replace it with a new high-quality valve. Regular hydraulic oil filtration every 1000 hours is recommended to prevent valve sticking and extend the life of your Caterpillar or Komatsu equipment.
Precision engineered for specific use in excavator and construction machinery.
Manufactured with high-strength alloy steel for maximum pressure resistance.
Direct fit replacement for JCB 25618901 ensures zero modification needed.
Enhanced surface treatment to prevent corrosion in harsh environments.
Rigorous factory testing to meet or exceed international performance standards.
| Payment Terms | T/T, Western Union, MoneyGram |
| Delivery Methods | Express (DHL, Fedex, EMS, UPS), Air Freight, Sea Freight |
| Packaging | Neutral Carton or Customized Export Packaging |
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