Hydraulic line repair data

Caterpillar CAT®M312 Pedal Hose List

Coverage details

Hoses: 4 records
Full specifications: 4 records
Systems: 1 systems
Length range: 730–3,400 mm

Current system

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Use the number on the diagram, a part number, connection point, length, hose size, or fitting.

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Hose repair details

Hose Length and Fitting List

Diagram Pipe No. 3

9R-9086

Installation route: 制动踏板~液压油过滤器(驾驶室后)

Length: 1,405 mm
Specification: DN10;2SN-6;33Mpa
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

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Diagram Pipe No. 8

144-2560

Installation route: 制动踏板~蓄能器

Length: 730 mm
Specification: DN10;1SN-6;15.7Mpa
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

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Diagram Pipe No. 2

143-4730

Installation route: 方向盘~驾驶室后

Length: 1,500 mm
Specification: DN13;1SN-8;14Mpa
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

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Diagram Pipe No. 5

149-6248

Installation route: 方向盘~分配阀下左

Length: 3,400 mm
Specification: DN13;1SN-8;14Mpa
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

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Diagram Pipe No. 3

142-8383

Installation route: 制动踏板~接线板(驾驶室后下)

Length: 1,000 mm
Specification: DN10;1SN-6;15.7Mpa
Left fitting: 45°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

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Diagram Pipe No. 1

142-8381

Installation route: 方向盘~接线板(驾驶室下)

Length: 1,200 mm
Specification: DN10;2SN-6;33Mpa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: 45°美制内螺纹平面密封

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Diagram Pipe No. 3

142-8383

Installation route: 制动踏板~蓄能器

Length: 1,000 mm
Specification: DN10;1SN-6;15.7Mpa
Left fitting: 45°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

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Diagram Pipe No. 9

144-2561

Installation route: 制动踏板~蓄能器

Length: 650 mm
Specification: DN10;1SN-6;15.7Mpa
Left fitting: 45°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

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Diagram Pipe No. 2

142-8382

Installation route: 制动踏板~接线板(驾驶室后下)

Length: 900 mm
Specification: DN10;2SN-6;33Mpa
Left fitting: 45°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

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Based on current published data

Common Repair Questions

Questions appear only when a published record or linked PDF page provides the answer.

How many hoses are currently listed for Caterpillar CAT®M312 Pedal?

There are 4 published records. 4 include a length, both end fittings, and a part number or diagram pipe number.

What is the hose length range for Caterpillar CAT®M312 Pedal?

Based on published records with valid lengths, the range is 730–3,400 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Caterpillar CAT®M312 Pedal?

The most frequent raw specifications in the current published records are: DN13;1SN-8;14Mpa (2 records), DN10;1SN-6;15.7Mpa (1 records), DN10;2SN-6;33Mpa (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®M312 Pedal?

Each record keeps the left and right fitting descriptions separate. Current examples: 9R-9086: left American female thread, flat-face seal; right American female thread, flat-face seal; 144-2560: left American female thread, flat-face seal; right American female thread, flat-face seal; 143-4730: 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.

Can I locate a Caterpillar CAT®M312 Pedal hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 3 (9R-9086), Pipe No. 8 (144-2560), Pipe No. 2 (143-4730), Pipe No. 5 (149-6248). Open a record to compare its installation position with the linked manual page.