EC240C Hydraulic Boom Cylinder for Excavator Spare Parts 14551710 Aftermarket High Quality
This robust boom hydraulic cylinder serves as a direct bolt-on aftermarket replacement exclusively engineered for EC240C medium heavy crawler excavator, a mainstream C-series machine widely deployed in urban infrastructure upgrades, residential foundation excavation, highway roadbed backfilling and medium-sized quarry aggregate stockpile loading. As the core load-bearing hydraulic component of front working attachments, it delivers steady lifting force and reliable load holding capacity during boom rise and fall, capable of enduring long shifts of medium-heavy cyclic earthmoving operations. It ranks as a fast-moving inventory part for professional service shops, mid-scale excavation rental operators and cross-border spare parts suppliers focusing on C-series mid-heavy digging equipment.
Every production procedure strictly abides by original OEM design blueprints and tight assembly tolerance standards. Critical installation dimensions including mounting lug spacing, pin bore inner diameter, thick wear-resistant bronze bushing specifications and hydraulic connector layout fully match dedicated OEM part number 14551710. No secondary cutting, grinding or welding modification is required during replacement installation, which effectively cuts mechanic labor hours and prevents costly construction site downtime triggered by sudden boom cylinder failure.
| Item | Detailed Information |
|---|---|
| Full Product Name | Complete Boom Hydraulic Cylinder Assembly |
| Compatible Machine | EC240C Medium Heavy Crawler Excavator |
| OEM Reference PN | 14551710 |
| Product Grade | Reinforced aftermarket hydraulic cylinder for municipal construction & light quarry projects |
| Quality Warranty | 12-month full coverage against all factory-originated manufacturing defects |
| Minimum Order Quantity | 1 piece, sufficient ready stock to support quick global delivery |
| QC Execution Standard | ISO9001 full traceable production management; 100% high-pressure air tightness test + full-stroke medium-heavy load cycle fatigue impact test before shipment |
| Technical Index | Standard Parameter |
|---|---|
| Cylinder Barrel Inner Bore | 132 mm |
| Hard Chrome Plated Piston Rod Diameter | 86 mm |
| Effective Working Stroke | 1410 mm |
| System Rated Operating Pressure | 31.8 MPa |
| Hydraulic Pressure Test Value | 47.7 MPa (1.5 times rated pressure for full internal & external leak inspection) |
| Barrel Raw Material | High tensile seamless alloy steel treated with deep precision internal honing, mirror-smooth low-friction inner surface to resist persistent hydraulic fluid abrasion under frequent construction cycles |
| Piston Rod Surface Treatment | 40CrMo quenched & tempered high-strength base alloy, 28–33μm dense hard chrome coating, surface hardness HRC68–72. Great anti-scratch, anti-bending and anti-collision performance against gravel, concrete fragments and rock scraps on mixed job sites |
| Supporting Matching Seal Kit PN | 14551710-KIT |
| Safe Operating Temperature Range | -25℃ ~ +85℃ |
| Structural Design Highlights | Widened extra-thick boom mounting lugs fitted with oversized self-lubricating bronze alloy wear bushings; single built-in buffer unit to ease sharp instant impact during frequent boom lifting and lowering under medium-heavy digging loads |
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Exclusive Single PN Custom Matching Only for EC240C C-Series Mid-Heavy Excavator
Part No.14551710 is a custom-manufactured boom cylinder solely compatible with EC240C, unable to fit EC210C, EC290C and other C-series excavator models. All connection geometric parameters perfectly replicate genuine C-series OEM mid-heavy components, seamlessly aligning with original boom linkages and factory hydraulic piping layout. It thoroughly resolves assembly offset issues that accelerate seal aging and trigger continuous oil seepage when generic thin-wall cylinders are forcibly mounted on reinforced medium-heavy machine frames.
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Anti-Impact Reinforced Frame Optimized for Mixed Urban & Quarry Working Scenarios
Low-cost universal thin-wall hydraulic cylinders lack targeted structural reinforcement and cannot adapt to frequent collision risks on city construction zones and small quarries. This product upgrades cylinder barrel and cast lug wall thickness customized for the high-frequency medium-heavy working rhythm of EC240C machines. It withstands long-term alternating lifting/digging loads and accidental debris impacts, boasting a much longer service life than ordinary aftermarket cylinders only suitable for simple landscaping work.
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Two Separate Offline Pre-Delivery Quality Inspections to Eliminate Hidden Defects
Each finished boom cylinder undergoes two independent offline test workflows before leaving the factory. The full-stroke reciprocating fatigue test simulates months of nonstop municipal foundation and quarry earthmoving work to verify integral structural bearing rigidity; extended high-pressure soaking tightness inspection locates every tiny internal and external oil leakage blind spot. All defective finished goods are fully screened out prior to warehousing to avoid expensive unplanned construction shutdown losses for small and medium contractors.
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Cost-Effective OEM Equivalent Replacement for EC240C Excavator Fleet Owners
Genuine OEM spare parts for EC240C series carry high retail prices and long international supply lead times. This aftermarket boom cylinder delivers identical structural load capacity, smooth low-vibration running performance and complete service lifespan as original factory parts at an economical unit cost. It drastically reduces recurring long-term maintenance overhead for independent repair garages and small leasing enterprises managing fleets of EC240C excavators.
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Multi-Mode Global Shipping Solutions Covering Europe, North America and Overseas Markets
All in-stock products can be dispatched within 3 working days upon payment confirmation. Air freight channels support emergency rush orders for unexpected machine breakdowns at suburban residential and mountain quarry construction sites; consolidated bulk sea cargo and full FCL container transport provide budget-friendly wholesale delivery plans for machinery distributors supplying construction markets across Africa, Southeast Asia, the Middle East and Latin America.
Our production plant owns over a decade of specialized R&D and mass production experience in hydraulic cylinders for C-series medium heavy excavators, with flagship EC240C as one of our mature core production lines. We operate a fully integrated closed-loop production workflow including heavy-duty precision forging, deep inner honing, integral heat treatment and automated thick chrome plating. Dedicated medium-heavy load mixed-site simulation test benches replicate real urban and quarry working conditions to continuously optimize the product’s shock resistance and long-term wear durability. Our general construction-grade aftermarket hydraulic cylinder product line is exported worldwide all year round, maintaining stable long-term cooperative partnerships and consistent positive customer feedback from global mid-size machinery spare parts distributors, relying on precise C-series model matching and unified strict stable quality control standards.
A: Cross-model installation is not supported. Different C-series excavators adopt exclusive non-interchangeable OEM part numbers and unique lug mounting geometric dimensions. Please double-check your complete machine model before placing orders.
A: Standard package only contains the complete boom cylinder assembly. The dedicated 14551710-KIT seal kit must be purchased separately; we offer discounted bundled pricing for clients ordering the cylinder and seal kit together.
A: Anti-rust hydraulic oil is fully injected into front and rear cylinder chambers to block internal corrosion; thick anti-rust grease is evenly coated over the entire exposed piston rod surface. The complete cylinder unit is wrapped with multiple layers of heavy-duty waterproof PE film and fixed inside reinforced thick plywood export crates to avoid scratches, impact deformation and moisture damage during lengthy cross-ocean shipping.
A: Yes. Orders for the full set of front working attachment cylinders qualify for progressive volume preferential pricing. Consolidated full-container sea shipping service can also be arranged to cut overall international logistics expenses for large-batch procurement.
A: Please provide clear photos of the leakage position together with your excavator serial number for official verification. We will promptly send free replacement seal components and detailed step-by-step remote maintenance guidance to resolve oil leakage faults without delaying critical urban renovation and quarry construction schedules.
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