What Should I Ask for Before Buying a Mixed Batch of SANY Spare Parts for a Remote Kazakhstan Project?

Ask for line-by-line evidence before payment or shipment. For each order line, require a candidate number tied to the machine or assembly identity, a candidate part number, the supplied condition, and—where the part type requires it—batch references and dimensional, material or test documents. A model name alone does not prove fitment. A thick certificate pack does not prove that each paper belongs to the exact item in the box.

This checklist focuses on filters, seals, hoses and undercarriage items only because these are common mixed-batch lines where the evidence changes by item. It is not a winter maintenance guide or an all-component catalogue.

1. Ask for a line-item candidate number before anything else

A candidate number is the supplier or request line identifier for one specific part, housing or assembly. Ask that every quotation line, invoice line, photo label and test record references that same number. This prevents a mixed batch from becoming only a list of model numbers and quantities.

Machine and assembly identity

For each line ask for:

• machine model and suffix;
• machine serial number or asset number;
• assembly identity where relevant, such as engine, hydraulic pump, swing drive, final drive or undercarriage frame;
• installation position if multiple left/right or front/rear positions exist.

Old part number and nameplate

Ask for the removed part number or the part number on the old housing, not only the machine model. If available, request a photo of the old part number, nameplate or component housing before ordering. For assemblies, request the nameplate or stamped number of the assembly the part fits.

Candidate part number and supersession

Ask the supplier to state the candidate part number and, if it is a supersession, the documented supersession chain or catalogue revision. Never accept a statement that one part replaces another without a written reference that can be checked against the applicable parts catalogue or supplier record.

2. Keep five evidence questions separate

Do not let one statement cover all five.

Identity

Ask what the item is: part number, description, revision or production index if applicable.

Fitment

Ask what it fits: machine serial range, assembly serial range, position and catalogue revision. Model alone is not fitment.

Provenance

Ask where the item was sourced from and what supply record links it to the order line. A supplier statement is useful, but it is not by itself proof of authenticity or origin.

Condition

Ask for the stated condition: new, unused surplus, reconditioned, used or repaired. For mixed batches, condition must be line-by-line, not batch-wide.

Sample results and batch acceptance

Ask which specific test or inspection result belongs to which line, if the part type requires it. Keep sample results separate from fitment and provenance. A sample certificate for one hose does not prove another hose in the same box.

3. What to ask by part group

Not every part group needs the same evidence.

Filters

For filters, ask for the filter part number, the engine or hydraulic system serial number if available, the installation position, and the supplier stated media type and micron rating if that is part of the acceptance requirement. Ask whether the line is a genuine SANY part, an equivalent aftermarket part or an unbranded part. If the supplier claims compliance or performance, ask for the specific manufacturer data sheet or batch test report that carries the same production date or batch code as the filter. Do not accept a photo of a similar filter as proof.

Seals

For seals, ask for the seal kit part number or individual seal number, the assembly it is intended for, the housing bore or shaft dimensions where they are critical, and the material specification such as NBR, FKM or polyurethane. If hardness or temperature range matters, ask for the stated grade or data sheet line that matches the candidate number. A generic hydraulic seal description is not enough for a remote project.

Hoses

For hoses, ask for the hose assembly part number or the made-up hose specification: inside diameter, length, end fitting types and orientation, working pressure, temperature range and fluid compatibility. Ask for the batch or production date and, if the supplier claims pressure testing or compliance, a test or conformity record tied to that batch. If the hose is used or surplus, ask for its removed assembly identity and actual length measurement, not only the catalogue length.

Undercarriage items

For track shoes, pins, bushings, idlers, sprockets or rollers, ask for the undercarriage part number, the machine model and serial range, and the existing undercarriage measurements where available: pitch, link count, bushing diameter, shoe width or roller dimensions. Ask whether the item matches the existing chain or is a replacement group with its own matching dimensions. If the supplier claims a hardness or heat-treatment result, request the batch or heat number linked to the line.

4. The document-pack trap

A thick PDF or paper pack is not automatically useful. A pack often contains general certificates, generic datasheets, export invoices or photos that are not linked to the exact line item.

Before accepting, check:

• every claimed record carries the same candidate number, part number, batch code or serial number as the order line;
• the record applies to the supplied item, not to a similar earlier batch;
• a photo shows the marking, not only a clean box or a similar part;
• a supplier statement is dated and written, not a verbal sales claim.

If a record cannot be linked, mark it as unverified and ask for the missing link.

5. Do not guess missing evidence

If a filter fits only a serial range, if a seal has two possible materials, if a hose length may be tolerance-critical, or if an undercarriage group may not match the existing chain, do not guess. Ask the seller or the responsible technical party to confirm against the applicable parts catalogue, assembly serial information or dimensional record.

Unresolved questions should stay open before shipment because returns from a remote Kazakhstan site are expensive and delivery delays can stop work.

Written supply terms

Ask for dated written supply terms covering:

• line-by-line condition;
• which records will be supplied before shipment;
• what happens if a part arrives without the agreed candidate-number link;
• inspection and rejection timing for missing or mismatched evidence.

This is a procurement control, not a technical test. It helps reject a line before it is shipped rather than after it reaches the site.

6. Procurement next step

Before approving the order, prepare one row per line with: machine serial, assembly, old part number, candidate part number, condition, required records and open questions. Send that list to the supplier and require the supplier to complete the evidence column for each row.

Then only accept the lines where the record can be traced from the paper to the marking or label on the item. For missing lines, either remove them from the batch or place them on hold until the evidence is supplied.

Parts Matching Support: If you need help structuring a line-by-line candidate-number enquiry, MechLink, an external commercial service, can collect model + serial number + old part number + component or housing photos and relevant labels or records. Kazakhstan Phone / WhatsApp: +77026412810; website https://www.mechandlink.com. MechLink is not an OEM, certification body or authorised SANY dealer.

Sources

No external published source was inspected for this checklist. Verification must use the actual supplier documents, applicable parts catalogue revision, machine serial records and batch or material records for the specific order lines. No catalogue revision, test report or certificate is cited because none was inspected.