Kobelco SK210-8 SK210LC-8 Boom Hydraulic Cylinder 126mm Bore 1350mm Stroke Aftermarket YN01V00151F1
This heavy-duty boom hydraulic cylinder is a fully interchangeable aftermarket component exclusively manufactured for Kobelco SK210-8 standard chassis excavator and long-track SK210LC-8 medium heavy digger. As the core load-bearing lifting actuator of front working attachments, it delivers stable high-torque power for boom lifting, lowering and load retention, widely used in municipal road renovation, residential foundation excavation, highway subgrade construction and small-medium quarry rock loading. It has become a core stocking spare for professional excavator repair workshops, medium-sized rental fleets and cross-border parts wholesalers focused on classic Kobelco 8-series medium excavators.
All production procedures strictly follow original Kobelco OEM technical drawings and precision assembly tolerances. Mount lug pitch, pin hole inner diameter, wear-resistant copper bushing dimension and hydraulic oil port layout fully match exclusive OEM part number YN01V00151F1. Direct bolt-on installation without any on-site cutting, grinding or welding modification, effectively cutting maintenance labor cost and avoiding massive construction downtime losses caused by sudden boom cylinder failure.
| Item | Detailed Specification |
|---|---|
| Full Name | Complete Boom Hydraulic Cylinder Assembly |
| Applicable Equipment | Kobelco SK210-8 Standard Track Excavator, SK210LC-8 Long Track Medium-Heavy Excavator |
| OEM Part Number | YN01V00151F1 |
| Product Grade | Reinforced aftermarket hydraulic cylinder for municipal construction & light quarry works |
| Quality Warranty | 12-month full warranty covering all factory manufacturing defects |
| MOQ | 1 unit, sufficient spot stock for immediate shipment |
| QC Standard | ISO9001 full-process traceable production; 100% high-pressure airtight leak test + full-stroke cyclic heavy-load fatigue test before delivery |
| # | Part No. | Description | Qty |
|---|---|---|---|
| D11 | B16T0442D77 | SHIM,87mm ID x 140mm OD x 0.9mm Thk; ID 87 x OD 140 x Th 0.9mm | 1 |
| C6 | B16T0442D14 | SHIM,160mm OD x 92mm ID x 1.6mm Thk; ID 92 x OD 160 x Th 1.6mm | 1 |
| E6 | B16T0442D62 | SHIM,87mm ID x 140mm OD x 1.6mm Thk; ID 87 x OD 140 x Th 1.6mm | 1 |
| D6 | YN02B01417D1 | SHIM,87mm ID x 140mm OD x 2mm Thk; ID 87 x OD 140 x Th 2.0mm | 6 |
| D7 | YN02B01109D1 | SHIM,87mm ID x 120mm OD x 0.5mm Thk; ID 87 x OD 120 x Th 0.5mm | 1 |
| C7 | B16T0442D15 | SHIM,160mm OD x 92mm ID x 2.3mm Thk; ID 92 x OD 160 x Th 2.3mm | 1 |
| A7 | ZG91S02000 | LUBE NIPPLE,1/8" NPT x 1/8" NPT; 1/8" PT -- Straight | 6 |
| E7 | YN02B01417D1 | SHIM,87mm ID x 140mm OD x 2mm Thk; ID 87 x OD 140 x Th 2.0mm | 2 |
| C8 | YN02B01414D1 | SHIM,92mm ID x 160mm OD x 2mm Thk; ID 92 x OD 160 x Th 2.0mm | 2 |
| D8 | YN02B01109D2 | SHIM,87mm ID x 120mm OD x 0.9mm Thk; ID 87 x OD 120 x Th 0.9mm | 1 |
| D9 | YN02B01109D4 | SHIM,87mm ID x 120mm OD x 1.6mm Thk; ID 87 x OD 120 x Th 1.6mm | 1 |
| D10 | B16T0442D78 | SHIM,87mm ID x 140mm OD x 0.5mm Thk; ID 87 x OD 140 x Th 0.5mm | 1 |
| A6 | ZH32Z04000 | ELBOW; 90° -- (1/4" PT - 1/4" PT), (Incls. O-Ring ZD12P01100) | 2 |
| D12 | B16T0442D62 | SHIM,87mm ID x 140mm OD x 1.6mm Thk; ID 87 x OD 140 x Th 1.6mm | 1 |
| . | YN02B00367F1 | CYLINDER INSTAL | 1 |
| . | YN02B00362F1 | Group (See fig no 450) | 1 |
| . | YN02B00364F1 | CYLINDER INSTAL | 1 |
| . | YN02B00405F1 | BOOM; CYLINDER INSTAL | 1 |
| . | YN02B00407F1 | CYLINDER INSTAL | 1 |
| . | YN02B00363F1 | BOOM INSTAL | 1 |
| . | YN02B00408F1 | BOOM ASSY,HOE | 1 |
| . | YN01V00175F1R | REMAN-HYD CYLINDER; SK210LC-8 ASN YQ09U3301 TIER 3 (NA) (12/06-) | 1 |
| . | YN01V00175F1C | CORE-HYD CYLINDER; Return Number | 1 |
| E3 | ZN18C16013 | NUT; M16x2.0mm | 2 |
| B1 | YN02B00409F1 | Hoe (See fig no 455) | 1 |
| D1 | YN02B01720P1 | PIN,85mm OD x 258mm L; PIN | 2 |
| A1 | 2444R1117D080 | FLEXIBLE HOSE,6.40mm ID x 780mm L | 1 |
| C1 | YN02B01719P1 | PIN,90mm OD x 876mm L | 1 |
| E1 | YN02B01722P1 | PIN,85mm OD x 277mm L | 1 |
| E2 | HS18C16150G2 | SCREW; M16x2.0x150mm | 1 |
| A2 | 2444R1117D084 | HOSE,6.40mm ID x 840mm L | 1 |
| C2 | HS18C20175G2 | BOLT,Hex, M20 x 175mm, Cl 10.9; M20x2.5x175mm | 1 |
| D2 | YN02B01721P1 | PIN,85mm OD x 776mm L | 1 |
| B2 | 2445R138D8 | SEAL,90mm ID x 105mm OD x 4mm Thk; Dust -- ID 90 x OD 105 x Th 4mm | 2 |
| A3 | 2444R1117D250 | HOSE,6.40mm ID x 2500mm L | 1 |
| C3 | ZN18C20016 | NUT; M20x2.5mm | 2 |
| D3 | HS18C16150G2 | SCREW; M16x2.0x150mm | 4 |
| A4 | 2444R1117D260 | HOSE,6.4mm ID x 2600mm L | 1 |
| E4 | B16T0442D78 | SHIM,87mm ID x 140mm OD x 0.5mm Thk; ID 87 x OD 140 x Th 0.5mm | 1 |
| D4 | YN02B01108P1 | BOSS | 2 |
| C4 | B16T0442D53 | SHIM,92mm ID x 160mm OD x 0.5mm Thk; ID 92 x OD 160 x Th 0.5mm | 1 |
| D5 | ZN18C16013 | NUT; M16x2.0mm | 8 |
| E5 | B16T0442D77 | SHIM,87mm ID x 140mm OD x 0.9mm Thk; ID 87 x OD 140 x Th 0.9mm | 1 |
| C5 | B16T0442D40 | SHIM,92mm ID x 160mm OD x 0.9mm Thk; ID 92 x OD 160 x Th 0.9mm | 1 |
| 01 | YN01V00151F1 | CYLINDER; ASSY,BOOM | 2 |
| 02 | YN01V00175F1 | CYLINDER,Double Acting, 95mm Rod, 1558mm Stroke; ASSY,ARM | 1 |
| Technical Index | Standard Parameter |
|---|---|
| Cylinder Tube Inner Bore | 126 mm |
| Hard Chrome Plated Piston Rod Diameter | 80 mm |
| Effective Working Stroke | 1350 mm |
| Rated System Working Pressure | 31.4 MPa |
| Factory Hydraulic Proof Test Pressure | 47.1 MPa (1.5 times rated pressure for full internal & external leakage inspection) |
| Cylinder Tube Raw Material | High tensile seamless alloy steel with deep precision inner honing, ultra-smooth low-friction inner wall resistant to long-hour medium-heavy hydraulic fluid abrasion under frequent construction cycles |
| Piston Rod Surface Treatment | 40CrMo quenched & tempered base alloy, 28–32μm dense hard chrome coating, surface hardness HRC68–72, excellent anti-scratch and anti-bending performance against gravel, concrete chunks and rock impacts on job sites |
| Matching Seal Kit PN | YN01V00151F1-KIT |
| Operating Temperature Range | -25℃ ~ +85℃ |
| Structural Feature | Widened thickened boom mounting lugs equipped with oversized self-lubricating copper alloy wear bushings; dual-stage built-in buffer system to absorb violent instantaneous shock during repeated boom lifting and lowering under heavy loads |
- Dual-Chassis Universal Fit for SK210-8 & SK210LC-8 Classic Models This boom cylinder assembly perfectly fits both standard and long-frame SK210-8 excavators without dimensional mismatch. All connecting geometric sizes fully replicate genuine Kobelco 8-series OEM components, seamlessly matching factory boom linkages and original hydraulic pipelines. It completely eliminates assembly offset issues that cause premature seal aging and continuous oil leakage due to forced installation on aged reinforced machine frames.
- 8-Series Custom Reinforced Anti-Impact Structure for Heavy Earthmoving Different from low-cost thin-wall universal hydraulic cylinders, this model optimizes wall thickness of cylinder barrel and cast lugs according to the high-frequency medium-heavy working characteristics of SK210-8 series. It withstands long-term alternating heavy loads and accidental hard rock collisions, with far longer service life than ordinary non-reinforced aftermarket alternatives unsuitable for quarry and heavy digging operations.
- Two Independent Offline Pre-Delivery Inspections Eliminate Hidden Defect Risks Each finished boom cylinder undergoes two separate rigorous offline testing flows before leaving factory. Full-stroke reciprocating fatigue test simulates months of non-stop municipal earthmoving to verify integral structural rigidity; long-duration high-pressure soaking tightness inspection comprehensively scans all internal and external leakage dead angles. All unqualified products are fully screened out before warehousing to prevent unexpected construction shutdown losses for end users.
- High Cost Performance for SK210-8 Fleet Operators Genuine OEM spare parts for discontinued classic SK210-8 series carry high prices and long supply lead times. This aftermarket boom cylinder reaches equivalent structural toughness, stable low-vibration operation and service cycle as authentic Kobelco factory parts at a competitive unit price, greatly reducing long-term recurring maintenance costs for independent repair shops and medium rental enterprises with batches of SK210-8 excavators.
- Flexible Global Logistics Solutions for Worldwide Clients All in-stock goods can be dispatched within 3 working days upon payment confirmation. Air freight supports emergency rush orders for sudden machine breakdowns at remote suburban construction sites; consolidated bulk sea cargo and full FCL container transport provide cost-effective wholesale shipping plans for machinery distributors covering construction markets across Africa, Southeast Asia, the Middle East and Latin America.
Our factory has over ten years of professional R&D and mass production experience in hydraulic cylinders for classic Kobelco 8-series medium excavators, with SK210-8 and SK210LC-8 as core mature production lines. We own complete integrated production lines including heavy precision forging, deep inner honing, integral heat treatment and automatic chrome plating, equipped with professional medium-heavy load simulation test benches to restore real municipal and quarry working environments and continuously optimize product anti-shock durability. Our construction-grade aftermarket hydraulic cylinder product line is exported all year round, winning stable long-term cooperative trust and consistent favorable reviews from global medium machinery spare parts distributors, relying on precise classic 8-series model matching and stable uniform quality.
Q1: Can this boom cylinder fit Kobelco SK210-9 or SK240LC-8 excavators?
A: Cross-model installation is not supported. Different Kobelco excavator generations and models adopt exclusive non-interchangeable OEM part numbers and unique lug mounting geometries. Please confirm your complete machine model before placing orders.
Q2: Does standard package include matching seal repair kit?
A: Standard package only contains complete boom cylinder assembly. Dedicated YN01V00151F1-KIT seal kit needs separate purchase, and we offer preferential bundled price if you order cylinder and seal kit together.
Q3: What anti-rust and anti-collision protection for ocean transportation?
A: Anti-rust hydraulic oil is fully injected into front and rear cylinder chambers to avoid internal corrosion; thick anti-rust grease is evenly coated on the whole exposed piston rod surface. The whole cylinder is wrapped with multi-layer heavy-duty waterproof PE film and fixed inside reinforced thick plywood export crates to prevent scratches, deformation and moisture erosion during long cross-ocean transit.
Q4: Will bulk discount be offered when purchasing full boom+arm+bucket cylinder set for SK210-8 series?
A: Yes. Orders of complete front working attachment cylinder sets enjoy tiered volume discounts. Consolidated full-container sea shipping is also available to cut overall international logistics cost for large batch orders.
Q5: What after-sales support if oil leakage occurs within 12-month warranty?
A: Please provide clear photos of leakage position and excavator serial number for verification. We will send free replacement seal accessories and detailed step-by-step remote maintenance guidance promptly to solve leakage issues without delaying construction progress.
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