Individual hose record

121-8659 Hose Repair Specifications

Excavator · Caterpillar · CAT®312B L · Grease Lines

Finished length2,000 mm

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Installation diagram — Pipe No. 4

Locate Pipe No. 4 in the diagram, then confirm part number 121-8659 before removing the hose.

Caterpillar CAT®312B L installation diagram showing hydraulic hose 121-8659 at Pipe No. 4 — Caterpillar CAT®312B LPart 121-8659 · Pipe No. 4Open full-size diagram

Repair specifications

Part number: 121-8659
Diagram pipe number: 4
Installation route: 大臂油缸黄油管
Hose specification: DN6;-4;10.3Mpa
Finished length: 2,000 mm
Working pressure: 10.3 MPa
Left fitting: 美制锥形外螺纹30°内锥
Right fitting: 美制锥形外螺纹
Quantity: 2

Same system

Related Hoses

Diagram Pipe No. 1

134-7636

Installation route: Arm-cylinder grease lineOriginal Chinese: 小臂油缸黄油管

Length: 1,600 mm
Specification: DN6;-4;10.3Mpa
Left fitting: 美制锥形外螺纹30°内锥
Right fitting: 美制锥形外螺纹

View full repair specifications

Diagram Pipe No. 2

101-2170

Installation route: 小臂销黄油管

Length: 730 mm
Specification: DN6;-4;19.2Mpa
Left fitting: 美制锥形外螺纹30°内锥
Right fitting: 美制锥形外螺纹

View full repair specifications

Diagram Pipe No. 5

121-8662

Installation route: Arm-cylinder grease lineOriginal Chinese: 小臂油缸黄油管

Length: 2,650 mm
Specification: DN6;-4;10.3Mpa
Left fitting: 美制锥形外螺纹
Right fitting: 美制锥形外螺纹30°内锥

View full repair specifications

Diagram Pipe No. 2

087-5891

Installation route: 小臂销黄油管

Length: 500 mm
Specification: DN6;-4;19.2Mpa
Left fitting: 美制锥形外螺纹30°内锥
Right fitting: 美制锥形外螺纹

View full repair specifications

For reference only. Confirm the actual hose before fabrication.