Hydraulic line repair data

Caterpillar CAT®219 Boom Assembly Hose List

Coverage details

Hoses: 4 records
Full specifications: 4 records
Systems: 1 systems
Length range: 411–945 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. 8

6A-7720

Installation route: 大臂油缸

Length: 945 mm
Specification: DN19;4SP-12;35Mpa
Left fitting: Heavy-series flangeOriginal Chinese: 法兰-重型
Right fitting: Heavy-series flangeOriginal Chinese: 法兰-重型

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Diagram Pipe No. 10

7V-7376

Installation route: 大臂油缸(带锁止阀规格)

Length: 411 mm
Specification: DN13;1SN-8;14Mpa
Left fitting: 美制内螺纹37°锥
Right fitting: 美制内螺纹37°锥

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Diagram Pipe No. 4

8V-7772

Installation route: 大臂油缸(带锁止阀规格)

Length: 612 mm
Specification: DN10;1SN-6;15.7Mpa
Left fitting: 美制内螺纹37°锥
Right fitting: 美制内螺纹37°锥

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Diagram Pipe No. 5

8V-7771

Installation route: 大臂油缸(带锁止阀规格)

Length: 642 mm
Specification: DN10;1SN-6;15.7Mpa
Left fitting: 美制内螺纹37°锥
Right fitting: 美制内螺纹37°锥

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Diagram Pipe No. 15

6A-8708

Installation route: 大臂左1/左4

Length: 1,400 mm
Specification: DN19;4SP-12;35Mpa
Left fitting: Heavy-series flangeOriginal Chinese: 法兰-重型
Right fitting: 90° heavy-series flangeOriginal Chinese: 90°法兰-重型

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Diagram Pipe No. 5

6A-4572

Installation route: 大臂左2/左3

Length: 1,400 mm
Specification: DN25;4SP-16;35Mpa
Left fitting: 90° heavy-series flangeOriginal Chinese: 90°法兰-重型
Right fitting: Heavy-series flangeOriginal Chinese: 法兰-重型

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Diagram Pipe No. 37

6A-4576

Installation route: 小臂油缸(后段)(规格2)

Length: 1,900 mm
Specification: DN25;4SP-16;35Mpa
Left fitting: 45° heavy-series flangeOriginal Chinese: 45°法兰-重型
Right fitting: Heavy-series flangeOriginal Chinese: 法兰-重型

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Diagram Pipe No. 29

6A-7703

Installation route: 铲斗油缸(后段)

Length: 1,900 mm
Specification: DN19;4SP-12;35Mpa
Left fitting: Heavy-series flangeOriginal Chinese: 法兰-重型
Right fitting: 45° heavy-series flangeOriginal Chinese: 45°法兰-重型

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Diagram Pipe No. 10

6A-8708

Installation route: Bucket cylinderOriginal Chinese: 铲斗油缸

Length: 1,400 mm
Specification: DN19;4SP-12;35Mpa
Left fitting: Heavy-series flangeOriginal Chinese: 法兰-重型
Right fitting: 90° heavy-series flangeOriginal Chinese: 90°法兰-重型

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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®219 Boom Assembly?

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®219 Boom Assembly?

Based on published records with valid lengths, the range is 411–945 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Caterpillar CAT®219 Boom Assembly?

The most frequent raw specifications in the current published records are: DN10;1SN-6;15.7Mpa (2 records), DN13;1SN-8;14Mpa (1 records), DN19;4SP-12;35Mpa (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®219 Boom Assembly?

Each record keeps the left and right fitting descriptions separate. Current examples: 6A-7720: left Heavy-series flange; right Heavy-series flange; 7V-7376: left 美制内螺纹37°锥; right 美制内螺纹37°锥; 8V-7772: left 美制内螺纹37°锥; right 美制内螺纹37°锥. Open the exact part-number or pipe-number record; do not swap ends based on appearance alone.

Can I locate a Caterpillar CAT®219 Boom Assembly hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 8 (6A-7720), Pipe No. 10 (7V-7376), Pipe No. 4 (8V-7772), Pipe No. 5 (8V-7771). Open a record to compare its installation position with the linked manual page.