Hydraulic line repair data

Caterpillar CAT®307C Hose Repair Data

Coverage details
Hoses
2 records
Full specifications
2 records
Systems
2 systems
Length range
838–1,000 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.

Search another machine

Hose repair details

Hose Length and Fitting List

Hose record

087-5772

Installation route: 先导滤芯—电磁阀

Length
1,000 mm
Specification
10I
Left fitting
11/16 A型 0°（手写接头规格）
Right fitting
11/16 A型 90°（手写接头规格）
View full repair specifications

Digitized data and source sheets

Caterpillar CAT®307C Hose Data and Original Handwritten Sheets

The table is a searchable transcription of the Caterpillar CAT®307C workshop notes. The complete original handwritten sheets are shown below without cropping.

Digitized measurements from these sheets

Workshop measurements
Part numberRecorded length
087-57721,000 mm
287-7350838 mm

Original handwritten sheets

Complete pages are shown in their original proportions without cropping.

Caterpillar CAT®307C hydraulic hose part numbers and recorded lengths — technician notebook page 4 of 4
Notebook page 4 of 4
Caterpillar CAT®307C hydraulic hose part numbers and recorded lengths — technician notebook page 1 of 4
Notebook page 1 of 4

Workshop guide

Finding the correct hydraulic hose for Caterpillar CAT®307C

Start with the machine and route

For Caterpillar CAT®307C, 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

  • 087-57721,000 mm · 10I · 先导滤芯—电磁阀
  • 287-7350838 mm · 13IV · 分配阀右边—油箱上边阀块

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 CAT®307C?

Based on published records with valid lengths, the range is 838–1,000 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Caterpillar CAT®307C?

The most frequent raw specifications in the current published records are: 10I (1 records), 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 CAT®307C?

Each record keeps the left and right fitting descriptions separate. Current examples: 087-5772: left 11/16 A型 0°（手写接头规格）; right 11/16 A型 90°（手写接头规格）; 287-7350: left 13/16″ A型 0°; right 13/16″ A型 90°. Open the exact part-number or pipe-number record; do not swap ends based on appearance alone.

Scroll to Top