- Length
- 2,350 mm
- Specification
- DN32;6SP-20;34.5MPa
- Left fitting
- Heavy-series flangeOriginal Chinese: 法兰-重型
- Right fitting
- Heavy-series flangeOriginal Chinese: 法兰-重型
Individual hose record
4373644 Hose Repair Specifications
Excavator · Hitachi · ZX800 · Boom Assembly
Finished length2,350 mm
Repair specifications
- Part number
- 4373644
- Diagram pipe number
- 40
- Installation route
- Bucket cylinderOriginal Chinese: 铲斗油缸
- Hose specification
- DN32;6SP-20;34.5MPa
- Finished length
- 2,350 mm
- Working pressure
- 34.5 MPa
- Left fitting
- Heavy-series flangeOriginal Chinese: 法兰-重型
- Right fitting
- Heavy-series flangeOriginal Chinese: 法兰-重型
- Quantity
- 2
Same system
Related Hoses
- Length
- 2,000 mm
- Specification
- DN32;6SP-20;31MPa
- Left fitting
- Heavy-series flangeOriginal Chinese: 法兰-重型
- Right fitting
- Heavy-series flangeOriginal Chinese: 法兰-重型
- Length
- 1,170 mm
- Specification
- DN19;4SP-12;31Mpa
- Left fitting
- American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
- Right fitting
- Light-series flangeOriginal Chinese: 法兰-轻型
- Length
- 1,120 mm
- Specification
- DN19;4SP-12;31Mpa
- Left fitting
- Light-series flangeOriginal Chinese: 法兰-轻型
- Right fitting
- American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Workshop guide
Finding the correct hydraulic hose for Hitachi ZX800 Boom Assembly
Start with the machine and route
For Hitachi ZX800 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.
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
- 43736442,350 mm · DN32;6SP-20;34.5MPa · Bucket cylinder
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.
See the exact question being sent
I am checking hydraulic hose repair information for "4373644 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_e0997dc826fb25e80a4e49fd/ HoseSeek currently shows: part number: 4373644; diagram pipe number: 40; installation route: Bucket cylinder; hose specification: DN32;6SP-20;34.5MPa; finished length in millimetres: 2350; left fitting: Heavy-series flange; right fitting: Heavy-series flange. 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.