GUANGZHOU BELPARTS ENGINEERING MACHINERY LIMITED
| Application | Excavator |
| Product name | 129-7828 1297828 |
| Delivery Time | 3-7 Day |
| Shipment | DHL FEDEX TNT EMS UPS / Ses / Air |
| Supply Ability | 100 PCS / Months |
| Warranty | 1 Year |
| Part name | Hydraulic Boom Cylinder |
| Model | 345BL |
| Condition | New |
| Emission standards | Stage V |
| Quality | Aftermarket High Quality |
| Packaging Details | Wooden Case Packing |
| Payment Terms | L/C,D/A,D/P,T/T,TRADE ASSURANCE,WEST UNION,PAYPAL |
| Model Number | 345BL |
| Certification | CE |
| Brand Name | Belparts |
| Place of Origin | China |
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Product Specification
| Application | Excavator | Product name | 129-7828 1297828 |
| Delivery Time | 3-7 Day | Shipment | DHL FEDEX TNT EMS UPS / Ses / Air |
| Supply Ability | 100 PCS / Months | Warranty | 1 Year |
| Part name | Hydraulic Boom Cylinder | Model | 345BL |
| Condition | New | Emission standards | Stage V |
| Quality | Aftermarket High Quality | Packaging Details | Wooden Case Packing |
| Payment Terms | L/C,D/A,D/P,T/T,TRADE ASSURANCE,WEST UNION,PAYPAL | Model Number | 345BL |
| Certification | CE | Brand Name | Belparts |
| Place of Origin | China |
| Hydraulic Parts | Hydraulic Pump | Final Drive | Travel Reduction |
| Swing Motor | Swing Reduction | Control Valve | Gear Parts |
| Slew Bearing | Engine Assembly | Hydraulic Cylinder | ECU |
This reliable aftermarket hydraulic boom cylinder is designed as a direct replacement part for Komatsu 345BL excavators. As a key hydraulic component of the working assembly, it controls the upward and downward movement of the boom, delivering stable performance for general construction, road renovation, quarry operations and large-scale earthmoving tasks. Every product is manufactured in strict compliance with original OEM standards, featuring identical mounting sizes, pin pitch and hydraulic port layout. Users can finish direct bolt-on installation on site without cutting, welding or any extra modifications.
| Item | Specification |
|---|---|
| Product Name | Hydraulic Boom Cylinder |
| Applicable Model | 345BL |
| OEM Part Number | 129-7828, 1297828 |
| Product Grade | Brand New High-Quality Aftermarket |
| Warranty | 12 months against manufacturing defects |
| MOQ | 1 unit, in stock for immediate shipment |
| QC Standard | ISO9001 certified, full hydraulic pressure and cyclic tests conducted before delivery |
| # | Part No. | Description | Qty |
|---|---|---|---|
| All | 1297828 | CYLINDER & SEAL GROUP-BOOM; (BOOM) | 1 |
| 1 | 3B8489 | FITTING-GREASE; (FAN AND ALTERNATOR DRIVE) | 1 |
| 2 | 9X4598 | SEAL; (OD=130.18mm) | 4 |
| 3 | 2590755 | CYLINDER GROUP-BOOM | 1 |
| 4 | 8T6757 | PLUG; (PIPE) (1/8-27 NPTF THD) | 1 |
| ---- | SEPARATE ILLUSTRATION |
| Spec Item | Data |
|---|---|
| Bore Diameter | 130mm |
| Piston Rod Diameter | 90mm |
| Working Stroke | 1480mm |
| Rated Working Pressure | 31.4MPa |
| Factory Test Pressure | 47.1MPa (1.5 times the rated working pressure) |
| Barrel Material | High-tensile seamless alloy steel with precision inner honing process |
| Piston Rod | 40CrMo heat-treated steel, 28~32μm hard chrome plating, HRC68~72 with excellent wear and anti-deformation capacity |
| Matching Seal Kit PN | 129-7828K |
| Working Temperature | -25℃ ~ +85℃ |
| Structure | Double ear lugs equipped with quenched copper wear bushings, built-in buffer structure to absorb operational impact |
Our factory has devoted itself to producing hydraulic cylinders for Komatsu medium and heavy excavators for over ten years. We supply a complete range of boom, arm and bucket cylinders for 345 series and other mainstream models. All products follow strict quality control systems and are widely exported to aftermarket markets in Africa, Southeast Asia and the Middle East, winning favorable feedback from global clients.
Company Details
Business Type:
Manufacturer,Exporter,Trading Company
Year Established:
2013
Total Annual:
900000-3000000
Employee Number:
50~93
Ecer Certification：
Verified Supplier
GUANGZHOU BELPARTS ENGINEERING MACHINERY LIMITED founded in September 2013, loed in the engineering machinery market in Guangzhou, China. At present , we have one shop, one warehouse and one office as well as a professional team for purchasing, selling, packing, shipping and after-sale service.... GUANGZHOU BELPARTS ENGINEERING MACHINERY LIMITED founded in September 2013, loed in the engineering machinery market in Guangzhou, China. At present , we have one shop, one warehouse and one office as well as a professional team for purchasing, selling, packing, shipping and after-sale service....
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