Hydraulic line repair data
Narrow the selection
Current machine
Use a system name, the number on the diagram, a part number, connection point, length, hose size, or fitting.
Technician notes
These notebook pages may help identify a hose or compare a recorded length. Confirm the final length, fittings, pressure rating, and routing on the machine before fabrication.
| Part number | Recorded length |
|---|---|
| 176-4557 | 1,170 mm |
| 187-7173 | 780 mm |
| 7Y-4193 | 2,500 mm |
| 087-6583 | 2,530 mm |
| 4I-0769 | 2,850 mm |
| 176-4561 | 1,170 mm |
| 4I-0772 | 3,550 mm |
| 199-1689 | 960 mm |
| 128-9166 | 540 mm |
| 173-4739 | 980 mm |
| 176-4558 | 1,230 mm |
| 087-4411 | 450 mm |
| 194-0325 | 340 mm |
| 176-4561 | 1,170 mm |
| 4I-0800 | 1,300 mm |
| 179-7461 | 1,200 mm |
Hose repair details
Showing 36 representative records. Return to the finder for a more specific search.
Diagram Pipe No. 20
Installation route: Swivel joint → travel motorOriginal Chinese: 回转接头~行走马达
No hose in this list matches those words. Clear the box or search another machine.
Based on current published data
Questions appear only when a published record or linked PDF page provides the answer.
The current published data covers 13 systems and 58 hose records. Systems with more listed records include: Control Valve (12 hoses), Attachments (9 hoses), Attachments – Quick Coupler (8 hoses), Control Lever (6 hoses), Boom Assembly (4 hoses), Hydraulic Pump (4 hoses).
The most frequent raw specifications in the current published records are: DN10;1SN-6;10.4Mpa (15 records), DN10;-6;10.3Mpa (8 records), DN10;1SN-6;15.7Mpa (6 records), DN6;2SN-4;40Mpa (4 records), DN10;2SN-6;33Mpa (3 records). Verify the specification together with length, pressure, and fitting details.
Each record keeps the left and right fitting descriptions separate. Current examples: 179-7770: left American female thread, flat-face seal; right American female thread, flat-face seal; 110-5499: left American female thread, flat-face seal; right American female thread, flat-face seal; 087-6584: left American female thread, flat-face seal; right American female thread, flat-face seal. Open the exact part-number or pipe-number record; do not swap ends based on appearance alone.
Yes. Current examples with a diagram pipe number are: Pipe No. 20 (179-7770), Pipe No. 35 (110-5499), Pipe No. 4 (087-6584), Pipe No. 7 (4I-1095). Open a record to compare its installation position with the linked manual page.
Optional cross-check
The question is already written for this machine or hose. Use a tool with web search enabled; treat its answer as a starting point and verify on the machine.
I am checking hydraulic hose repair information for "Caterpillar CAT®312C Hose Length & Fitting Data". Use web search and cite a source for every factual point. Compare this HoseSeek page with manufacturer manuals and reliable parts documentation: https://www.hoseseek.com/machines/caterpillar/cat-174-312c--43415426233137343b33313243/ Verify, where applicable: 1. Exact machine model and any serial-number range. 2. Hydraulic system and installation route. 3. Hose part number and diagram pipe number. 4. Finished length, hose specification, and pressure rating. 5. Both end fittings, including thread, sealing seat, size, and angle. 6. Installation-diagram position and routing. State explicitly what you could not verify. Do not infer a missing dimension or fitting. End with a short on-machine checklist for a hose repair technician.
