Individual hose record

4I-3820 Hose Repair Specifications

Excavator · Caterpillar · CAT®319C · Boom Assembly

Finished length950 mm

Hose repair card

Everything needed to identify and make this hose

Caterpillar CAT®319CPipe No. 8 · Part 4I-3820

Make this hose4I-3820

Finished length950 mm

Working pressure42 MPa

Hose specificationDN19；6SH-12；42Mpa

Quantity1

Left fittingAmerican female thread, flat-face sealFITTING · 0°View real fitting photos ↗

Right fittingAmerican female thread, flat-face sealFITTING · 0°View real fitting photos ↗

RouteArm cylinder — left

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Repair specifications

Part number: 4I-3820
Diagram pipe number: 8
Installation route: Arm cylinder — leftOriginal Chinese: 小臂油缸左
Hose specification: DN19；6SH-12；42Mpa
Finished length: 950 mm
Working pressure: 42 MPa
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
Quantity: 1

Same system

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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. 4

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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

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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. 10

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Diagram Pipe No. 1

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Installation route: 铲斗油缸(规格1)

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Diagram Pipe No. 4

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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

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Right fitting: 90° heavy-series flangeOriginal Chinese: 90°法兰-重型

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Workshop guide

Finding the correct hydraulic hose for Caterpillar CAT®319C Boom Assembly

Start with the machine and route

For Caterpillar CAT®319C Boom Assembly, 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.

See all Caterpillar CAT®319C systems

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

4I-3820950 mm · DN19；6SH-12；42Mpa · Arm cylinder — left

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.

Optional cross-check

Ask an AI search tool to check this repair data

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.

ChatGPT Perplexity Claude Google AI Mode

See the exact question being sent

I am checking hydraulic hose repair information for "4I-3820 Hose Repair Specifications". 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/hoses/hose_bfeafc482dc1234ba4f92323/
HoseSeek currently shows: part number: 4I-3820; diagram pipe number: 8; installation route: Arm cylinder — left; hose specification: DN19；6SH-12；42Mpa; finished length in millimetres: 950; left fitting: American female thread, flat-face seal; right fitting: American female thread, flat-face seal.

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.

For reference only. Confirm the actual hose before fabrication.