- Length
- 3,100 mm
- Specification
- DN12;2层纤维层-8;1MPa
- Left fitting
- 美制内螺纹37°内锥
- Right fitting
- 90°美制内螺纹37°内锥
Individual hose record
4358770 Hose Repair Specifications
Excavator · Hitachi · EX550LC-3 · Swivel Joint
Finished length3,350 mm
Repair specifications
- Part number
- 4358770
- Diagram pipe number
- 0
- Installation route
- Swivel joint → travel motorOriginal Chinese: 回转接头~行走马达
- Hose specification
- DN10;1SN-6;7Mpa
- Finished length
- 3,350 mm
- Working pressure
- 7 MPa
- Left fitting
- 美制内螺纹37°内锥
- Right fitting
- 美制内螺纹37°内锥
- Quantity
- 4
Same system
Related Hoses
- Length
- 2,900 mm
- Specification
- DN12;2层纤维层-8;1MPa
- Left fitting
- 美制内螺纹37°内锥
- Right fitting
- 90°美制内螺纹37°内锥
- Length
- 2,500 mm
- Specification
- DN25;4SP-16;32Mpa
- Left fitting
- 90° elbow, American female thread, flat-face sealOriginal Chinese: 90°美制内螺纹平面密封
- Right fitting
- Heavy-series flangeOriginal Chinese: 法兰-重型
Workshop guide
Finding the correct hydraulic hose for Hitachi EX550LC-3 Swivel Joint
Start with the machine and route
For Hitachi EX550LC-3 Swivel Joint, identify the exact model and hydraulic system on the machine first. A part number or diagram pipe number is the fastest way to narrow a replacement hose; if neither is visible, compare the installation route and the existing hose.
Read the dimensions before cutting
Check whether a listed dimension is finished assembly length, hose-only length, or cut length. These are not interchangeable. Confirm hose specification and pressure rating, then compare both ends separately: thread, sealing seat, size, angle, and orientation.
Records to compare
- 43587703,350 mm · DN10;1SN-6;7Mpa · Swivel joint → travel motor
Use the drawing as a location check
Where an installation drawing or manual figure is available, match its callout to the part number and physical route. A hydraulic circuit diagram explains connections but does not show the exact routing of a hose on the machine. Take the old hose or clear end-fitting photographs to the workshop if any dimension is missing.
For reference only. Confirm the actual hose before fabrication.