1
Read the nameplate
Copy the full model and any suffix or serial exactly as stamped or printed. A close name is not the same model.
A method, not a guarantee
Identify an HDD pump part
This guide is the same path as on the previous donglipumps.com site: record what is on the pump, compare it to a published reference, then ask Dongli to check. It applies to horizontal directional drilling pumps and to other pumps in this catalogue. Examples that used withheld Kerr models are not repeated here.
Steps
Work from the machine in front of you, not from a memory of a similar job.
2
Copy the printed part number
Take it from the part, the tag, or the packing, character for character, including prefixes and suffixes.
3
Look it up here
Use the assistant or the catalogue pages. A hit is a starting point for a check, not a confirmation.
4
Send evidence to Dongli
Include the nameplate, the printed number, clear photographs, and the duty if you know it. Wait for a human reply before treating a part as a match.
This guide can
Help you collect the identifiers Dongli needs, and show you which catalogue records and published manuals exist.
This guide cannot
Approve fitment, interchange, stock, or a substitute. Those need a human check against your machine.
If a record disagrees with your machine. Trust the nameplate and the part in your hand. Tell Dongli about the difference. Do not assume the catalogue is the authority over the unit.
Kerr manuals (including KZ-3150PT), the five A-group PDFs, and drawing c322409dcab6 are withheld and are not linked from this guide.
Questions
Why is this still called an HDD guide?
Because v75 published this exact path, and incoming links still use it. The method is the same for other pumps in the catalogue.
Can I use a similar part number from another brand?
Not from this page. Similar numbers are not interchange approval. Ask Dongli with photographs.
Next
When you have the model and the printed number, ask from the home page or send an inquiry.