- Length
- 3,350 mm
- Specification
- DN10;-6;10.3Mpa
- Left fitting
- American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
- Right fitting
- American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Individual hose record
4I-3994 Hose Repair Specifications
Excavator · Caterpillar · CAT®311C · Control Valve
Finished length2,300 mm
Locate this hose
Installation diagram — Pipe No. 5
Locate Pipe No. 5 in the diagram, then confirm part number 4I-3994 before removing the hose.
Repair specifications
- Part number
- 4I-3994
- Diagram pipe number
- 5
- Installation route
- 分配阀下~
- Hose specification
- DN10;-6;10.3Mpa
- Finished length
- 2,300 mm
- Working pressure
- 10.3 MPa
- Left fitting
- American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
- Right fitting
- American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
- Quantity
- 1
Same system
Related Hoses
- Length
- 500 mm
- Specification
- DN10;-6;10.3Mpa
- Left fitting
- American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
- Right fitting
- American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
- Length
- 3,550 mm
- Specification
- DN10;1SN-6;10.4Mpa
- Left fitting
- American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
- Right fitting
- American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
- Length
- 2,200 mm
- Specification
- DN10;1SN-6;10.4Mpa
- Left fitting
- American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
- Right fitting
- American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
- Length
- 1,030 mm
- Specification
- DN10;-6;10.3Mpa
- Left fitting
- American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
- Right fitting
- American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
- Length
- 1,030 mm
- Specification
- DN10;-6;10.3Mpa
- Left fitting
- American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
- Right fitting
- American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
- Length
- 3,200 mm
- Specification
- DN10;-6;10.3Mpa
- Left fitting
- American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
- Right fitting
- American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
- Length
- 3,200 mm
- Specification
- DN10;-6;10.3Mpa
- Left fitting
- American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
- Right fitting
- American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Workshop guide
Finding the correct hydraulic hose for Caterpillar CAT®311C Control Valve
Start with the machine and route
For Caterpillar CAT®311C Control Valve, 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
- 4I-39942,300 mm · DN10;-6;10.3Mpa · 分配阀下~
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.