Individual hose record
204-6394 Hose Repair Specifications
Excavator · Caterpillar · CAT®312C · Engine Oil Lines
Locate this hose
Installation diagram — Pipe No. 1
Locate Pipe No. 1 in the diagram, then confirm part number 204-6394 before removing the hose.
Repair specifications
- Part number
- 204-6394
- Diagram pipe number
- 1
- Installation route
- 机油取样阀管
- Hose specification
- DN6;-4;10.3Mpa
- Finished length
- 700 mm
- Working pressure
- 10.3 MPa
- Left fitting
- 美制锥形外螺纹30°内锥
- 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®312C Engine Oil Lines
Start with the machine and route
For Caterpillar CAT®312C Engine Oil Lines, 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
- 204-6394700 mm · DN6;-4;10.3Mpa · 机油取样阀管
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.