Komatsu PC250-6LE PC250LC-6LE Hydraulic Bucket Cylinder 206-70-00130 135mm Bore 1420mm Stroke Aftermarket
This heavy-duty aftermarket hydraulic bucket cylinder is precision manufactured as a direct OEM interchangeable replacement for Komatsu PC250-6LE standard track and PC250LC-6LE long-track medium-large excavators. As the core hydraulic actuator of front working attachment, it drives bucket digging, rock grabbing, bulk material loading and dumping operations. Widely used in stone quarries, municipal large-scale construction, highway engineering and medium open-pit earthmoving projects.
All cylinders are strictly produced in accordance with Komatsu original technical drawings and OEM standards, with fully consistent mounting dimensions, pin hole spacing and hydraulic port layout. Direct bolt-on installation without cutting, welding or any on-site secondary modification.
| Item | Specification |
|---|---|
| Product Name | Hydraulic Bucket Cylinder |
| Applicable Model | Komatsu PC250-6LE, PC250LC-6LE Excavator |
| OEM Part Number | 206-70-00130 |
| Product Grade | Brand New High-Quality Aftermarket |
| Warranty | 12 months against manufacturing defects |
| MOQ | 1 unit, sufficient stock for immediate shipment |
| QC Standard | ISO9001 certified, full hydraulic pressure & cyclic fatigue testing before delivery |
| # | Part No. | Description | Qty |
|---|---|---|---|
| G-1 | (206-70-X3001) | LINK GROUP | 1 |
| ---- | ==================== | ||
| 1 | 206-70-00261 | LINK ASS'Y | 1 |
| 1 | 206-70-00130 | LINK ASS'Y | 1 |
| 1 | ---- | LINK | 1 |
| 1 | ---- | LINK | 1 |
| 2 | 206-70-53150 | Bushing | 2 |
| 3 | 205-70-67150 | Bushing | 2 |
| 4 | 07020-00675 | FITTING,GREASE (WITHOUT LUB. PIPING) | 2 |
| 5 | 07020-00000 | FITTING, GREASE - UPPER HINGE PIN | 1 |
| 6 | 205-70-62140 | SEAL,DUST (KIT) | 4 |
| 7 | 205-70-62140 | SEAL,DUST (KIT) | 2 |
| 8 | 205-70-73280 | O-ring | 2 |
| 9 | 206-70-57120 | LINK | 2 |
| 10 | 20Y-70-11340 | SPACER? 0.8MM | 3 |
| 10 | 20Y-70-11340 | SPACER? 0.8MM | 6 |
| 11 | 205-70-51530 | SPACER? 1.5MM | 3 |
| 11 | 205-70-51530 | SPACER? 1.5MM | 6 |
| 12 | 206-70-53140 | Pin | 2 |
| 13 | 205-70-73190 | Bolt | 2 |
| 14 | 01580-12016 | NUT - M20 | 4 |
| 15 | 20Y-70-11340 | SPACER? 0.8MM | 1 |
| 16 | 205-70-51530 | SPACER? 1.5MM | 2 |
| 17 | 205-70-73270 | Pin | 1 |
| 18 | 205-70-73190 | Bolt | 1 |
| 19 | 01580-12016 | NUT - M20 | 2 |
| 20 | 205-70-73270 | Pin | 1 |
| 21 | 362-46-11210 | Bolt | 1 |
| 22 | 01580-12016 | NUT - M20 | 2 |
| ---- | ==================== |
| Spec Item | Data |
|---|---|
| Bore Diameter | 135mm |
| Piston Rod Diameter | 88mm |
| Working Stroke | 1420mm |
| Rated Working Pressure | 31.4MPa |
| Factory Test Pressure | 47.1MPa (1.5 times rated working pressure) |
| Barrel Material | High-tensile seamless alloy steel with precision inner honing |
| Piston Rod | 40CrMo heat-treated steel, 28~32μm hard chrome plating, HRC68–72, excellent wear resistance & anti-bending performance |
| Matching Seal Kit PN | 206-70-00130K |
| Working Temperature | -25℃ ~ +85℃ |
| Structure Feature | Double reinforced ear lugs with quenched copper wear bushings, built-in buffer device to reduce strong impact during reciprocating movement |
- Universal Fit for PC250-6LE & PC250LC-6LE
Single cylinder compatible with both standard track and long-track LC version of PC250-6LE. All assembly sizes, lug spacing and oil port positions fully match original PN 206-70-00130 cylinder, seamlessly connecting bucket linkages and hydraulic pipelines for stable continuous heavy-load construction operation.
- Reinforced Heavy-Duty Construction for Quarry Work
Thickened cylinder barrel and reinforced joint lugs are optimized for harsh quarry and construction environments, resisting long-term cyclic heavy loads, rock collision impacts and abrasion to greatly extend service life.
- Multi-Round Strict Pre-Delivery Inspection
Each finished cylinder undergoes repeated full-stroke reciprocating cycle test and high-pressure airtight leak detection, completely eliminating hidden internal and external oil leakage hazards.
- Outstanding Cost Performance
Delivers identical stability, strength and service lifespan as genuine Komatsu OEM spare parts, effectively cutting recurring procurement costs for repair shops, machinery rental fleets and global spare parts wholesalers.
- Flexible Global Logistics Support
In-stock items can be dispatched within 3 working days. Air freight supports urgent breakdown rush orders; sea freight provides cost-saving bulk wholesale shipping for Africa, Southeast Asia, Middle East mining and construction markets.
Our factory has over 10 years of professional experience in R&D and mass production of hydraulic cylinders for classic Komatsu PC medium-large excavator series including PC250-6LE / PC250LC-6LE. We supply complete boom, arm and bucket cylinder assemblies with mature forging, honing and heat treatment craft, plus full-process strict quality control. Our aftermarket hydraulic cylinders are exported worldwide all year round, winning long-term trust and consistent positive feedback from global machinery spare parts dealers.
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