- 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 · 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
Diagram Pipe No. 2S
4343205
Installation route: Swivel joint → travel motorOriginal Chinese: 回转接头~行走马达
- 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 Swivel Joint
Start with the machine and route
For Hitachi EX550LC 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.