BELPARTS MACHINERY LIMITED
| Condition | New |
| Emission standards | Stage V |
| Quality | Aftermarket High Quality |
| Part name | Hydraulic Arm Cylinder |
| Part number | 9173705 |
| Delivery Time | 3-7 Day |
| Application | Excavator |
| Supply Ability | 100 PCS / Months |
| Warranty | 1 Year |
| Packaging Details | Wooden Case Packing |
| Shipment | DHL FEDEX TNT EMS UPS / Ses / Air |
| Payment Terms | L/C,D/A,D/P,T/T,TRADE ASSURANCE,WEST UNION,PAYPAL |
| Model | EX370-5 |
| Place of Origin | China |
| Model Number | EX370-5 |
| Brand Name | Belparts |
| Certification | CE |
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Product Specification
| Condition | New | Emission standards | Stage V |
| Quality | Aftermarket High Quality | Part name | Hydraulic Arm Cylinder |
| Part number | 9173705 | Delivery Time | 3-7 Day |
| Application | Excavator | Supply Ability | 100 PCS / Months |
| Warranty | 1 Year | Packaging Details | Wooden Case Packing |
| Shipment | DHL FEDEX TNT EMS UPS / Ses / Air | Payment Terms | L/C,D/A,D/P,T/T,TRADE ASSURANCE,WEST UNION,PAYPAL |
| Model | EX370-5 | Place of Origin | China |
| Model Number | EX370-5 | Brand Name | Belparts |
| Certification | CE | ||
| High Light | Hitachi excavator hydraulic arm cylinder ，aftermarket hydraulic cylinder assy ，EX370-5 excavator spare parts | ||
This premium aftermarket hydraulic arm cylinder is engineered as a trustworthy replacement part tailored for Hitachi EX370-5 excavators. As a pivotal hydraulic component of the working mechanism, it governs the extension and retraction of the arm to fulfill heavy-duty digging, material lifting and bulk earthmoving tasks. It is widely applied in road construction, mine exploitation, land reclamation and various medium and large engineering sites. All products are manufactured strictly following Hitachi’s original OEM standards and production techniques, featuring identical mounting dimensions, pin hole spacing and hydraulic port layout. On-site installation can be completed via direct bolt-on fitting without any cutting, welding or additional modifications.
| Item | Specification |
|---|---|
| Product Name | Hydraulic Arm Cylinder |
| Applicable Model | Hitachi EX370-5 Excavator |
| OEM Part Number | 9173705 |
| Product Grade | Brand New High-Quality Aftermarket |
| Warranty | 12 months against manufacturing defects |
| MOQ | 1 unit, ample stock for immediate delivery |
| QC Standard | ISO9001 certified, full hydraulic pressure and cyclic tests before shipment |
2. Core Technical Parameters
| Spec Item | Data |
|---|---|
| Bore Diameter | 138mm |
| Piston Rod Diameter | 93mm |
| 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 |
| Piston Rod | 40CrMo heat-treated steel, 28~32μm hard chrome plating, HRC68~72 for superior wear resistance and anti-deformation performance |
| Matching Seal Kit PN | 9173705K |
| Working Temperature | -25℃ ~ +85℃ |
| Structure | Double ear lugs with quenched copper wear bushings, built-in buffer device to reduce impact during operation |
3. Product Advantages
4. Supplier Brief
Our manufacturing plant has accumulated rich experience in developing and producing hydraulic cylinders for Hitachi EX series excavators over the years. We provide a complete lineup of boom, arm and bucket cylinders for EX370-5 and other classic Hitachi equipment models. Supported by mature production craftsmanship and rigorous quality management rules, our products are continuously exported to aftermarket markets across Africa, Southeast Asia and the Middle East, gaining sincere recognition from overseas partners.
5. FAQ
Q1: Can this arm cylinder be adapted to EX350-5 or EX400-5 excavator models?
A: No. Different Hitachi excavator models adopt exclusive part codes and structural dimensions, so they are not interchangeable. Please verify your equipment model before placing orders.
Q2: Does the standard delivery package include the matching seal repair kit?
A: The seal repair kit is not included in standard products. You can order the dedicated repair kit separately, and we will offer a competitive rate for combined orders.
Q3: What kind of packaging is used for long-distance overseas sea transportation?
A: Anti-rust oil is injected into the cylinder interior, and anti-rust grease is applied on the piston rod surface. The whole unit is wrapped with waterproof PE film and packed in heavy-duty export plywood cases.
Q4: Are there preferential prices when purchasing a full set of working device cylinders?
A: Yes. Customers who purchase complete cylinder sets will enjoy tiered discounts. We also provide consolidated shipment service to help reduce logistics expenditure.
Q5: What kind of support can we get if oil leakage occurs within the warranty period?
A: Please take clear photos of the leaking area and provide the excavator serial number. We will arrange free seal replacement and professional remote technical guidance in a timely manner.
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2013
Total Annual:
$28000000-$41660000
Employee Number:
1200~1300
Ecer Certification：
Verified Supplier
Since 2013 Excavator Hydraulic Parts Manufacturer & Global Supplier Since 2013 Belparts Machinery Limited — Your Trusted Partner in Excavator Hydraulic Parts Who We Are Founded in September 2013 and headquartered in Guangzhou, China's premier engineering machinery hub, Belparts ha... Since 2013 Excavator Hydraulic Parts Manufacturer & Global Supplier Since 2013 Belparts Machinery Limited — Your Trusted Partner in Excavator Hydraulic Parts Who We Are Founded in September 2013 and headquartered in Guangzhou, China's premier engineering machinery hub, Belparts ha...
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