- Length
- 990 mm
- Specification
- 13IV
- Left fitting
- 13/16 A型 0°（手写接头规格）
- Right fitting
- 13/16 A型 90°（手写接头规格）
Hydraulic line repair data
Caterpillar 307D Hose Repair Data
Coverage details
- Hoses
- 1 records
- Full specifications
- 1 records
- Systems
- 1 systems
- Length range
- 990–990 mm
Current machine
Find a hose on this machine
Use a system name, the number on the diagram, a part number, connection point, length, hose size, or fitting.
Hose repair details
Hose Length and Fitting List
No hose in this list matches those words. Clear the box or search another machine.
Digitized data and source sheets
Caterpillar 307D Hose Data and Original Handwritten Sheets
The table is a searchable transcription of the Caterpillar 307D workshop notes. The complete original handwritten sheets are shown below without cropping.
Digitized measurements from these sheets
| Part number | Recorded length |
|---|---|
| 4I-0836 | 1,200 mm |
| 4I-1025 | 300 mm |
| 4I-1739 | 1,020 mm |
| 32-248913IV36A | 990 mm |
Original handwritten sheets
Complete pages are shown in their original proportions without cropping.
Workshop guide
Finding the correct hydraulic hose for Caterpillar 307D
Start with the machine and route
For Caterpillar 307D, 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
- 312-2489990 mm · 13IV · 回转马达—分配阀（右边）
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.
Based on current published data
Common Repair Questions
Questions appear only when a published record or linked PDF page provides the answer.
What is the hose length range for Caterpillar 307D?
Based on published records with valid lengths, the range is 990 mm. Open the individual record to verify its installation position and both end fittings before fabrication.
Which hose specifications are common for Caterpillar 307D?
The most frequent raw specifications in the current published records are: 13IV (1 records). Verify the specification together with length, pressure, and fitting details.
How can I identify the left and right hose fittings for Caterpillar 307D?
Each record keeps the left and right fitting descriptions separate. Current examples: 312-2489: left 13/16 A型 0°（手写接头规格）; right 13/16 A型 90°（手写接头规格）. Open the exact part-number or pipe-number record; do not swap ends based on appearance alone.