Individual hose record
099-0426 Hose Repair Specifications
Excavator · Caterpillar · CAT®E120B · Hydraulic Pump
Locate this hose
Installation diagram — Pipe No. 17
Locate Pipe No. 17 in the diagram, then confirm part number 099-0426 before removing the hose.

Repair specifications
- Part number
- 099-0426
- Diagram pipe number
- 17
- Installation route
- 液压泵~分配阀
- Hose specification
- DN19;4SP-12;28Mpa
- Finished length
- 770 mm
- Working pressure
- 28 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
Workshop guide
Finding the correct hydraulic hose for Caterpillar CAT®E120B Hydraulic Pump
Start with the machine and route
For Caterpillar CAT®E120B Hydraulic Pump, 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
- 099-0426770 mm · DN19;4SP-12;28Mpa · 液压泵~分配阀
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.
