Individual hose record

221-4663 Hose Repair Specifications

Excavator · Caterpillar · CAT®312F GC · Boom Assembly

Finished length1,020 mm

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Installation diagram — Pipe No. 5

Locate Pipe No. 5 in the diagram, then confirm part number 221-4663 before removing the hose.

Caterpillar CAT®312F GC installation diagram showing hydraulic hose 221-4663 at Pipe No. 5 — **Caterpillar CAT®312F GC**Part 221-4663 · Pipe No. 5Open full-size diagram

Repair specifications

Part number: 221-4663
Diagram pipe number: 5
Installation route: Arm cylinder — leftOriginal Chinese: 小臂油缸左
Hose specification: DN19;6SH-12;42Mpa
Finished length: 1,020 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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Diagram Pipe No. 2

124-0838

Installation route: 铲斗油缸左(2.5M)

Length: 1,300 mm
Specification: DN16;6SH-10;42Mpa
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. 1

4I-1095

Installation route: 小臂油缸

Length: 775 mm
Specification: DN19;6SH-12;42Mpa
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. 1

4I-1095

Installation route: Arm cylinder — rightOriginal Chinese: 小臂油缸右

Length: 775 mm
Specification: DN19;6SH-12;42Mpa
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

123-2729

Installation route: 铲斗油缸左(3M)

Length: 1,660 mm
Specification: DN16;6SH-10;42Mpa
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

View full repair specifications

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I am checking hydraulic hose repair information for "221-4663 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_980c8c7fc862f1585d2fcad1/
HoseSeek currently shows: part number: 221-4663; diagram pipe number: 5; installation route: Arm cylinder — left; hose specification: DN19;6SH-12;42Mpa; finished length in millimetres: 1020; 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.

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