A fuel injector quotation can look complete while leaving the most expensive questions unanswered. Is the reference number exact? Does the quoted unit match the engine system? Does “one set” mean one injector or enough for the planned repair? We know that vague descriptions make overseas purchasing harder. They also turn a simple comparison into detective work with a shipping invoice. Our approach is to build the enquiry around identification, connections, supply condition and quantities before comparing the final price.
For a Weichai fuel injector order, I recommend submitting the complete part reference, engine model and serial number, nameplate photographs, old component photographs and required quantities. Ask the supplier to state the supply condition, included items and price per defined unit. Have the supplier and repair workshop confirm system identification, installation requirements and any calibration or coding procedure. Treat connection photographs as review material, rather than proof of interchangeability. Approve the resulting itemized specification before authorizing purchasing, packing or dispatch.
I use the following checks to turn a broad injector request into a specification that purchasing, sales and the repair workshop can review together, without asking photographs to perform miracles.
Which references should I send with my injector enquiry?
Send the complete component reference and engine identification together. I would copy every digit and suffix exactly as shown in the available records. Include the engine model, serial number and clear nameplate photographs. If an old injector is available, photograph its markings separately from the engine plate. Keep uncertain characters visibly flagged in your enquiry. A guessed digit deserves a question mark, not a confident purchase order.
Our listings for fuel injector reference 61560080276 and fuel injector reference 612630090012 provide starting points for an enquiry. I would keep those references on separate quotation lines. Neither a shared engine family nor a similar product name establishes interchangeability. Ask which precise item is proposed, and retain the supplier’s written identification alongside your workshop’s confirmation. Unresolved identification should stay unresolved on paper until the supporting information arrives.
What can electrical and fuel connections tell me?
Use connection photographs as material for review, not proof of fitment. Show the electrical connector, fuel connections, mounting features and identification marks. Bosch QualityScan’s identification guidance distinguishes a component’s type-part number, IMA code, serial number and manufacturing date. Those identifiers answer different questions. I recommend photographing all available markings without cropping them. Bosch’s examples do not establish a numbering rule or compatibility for the Weichai references in this article.
Ask your workshop to identify the injection system before discussing replacement or installation. A fuel injector enquiry is also different from a request for a fuel injection pump. Keep the component name explicit. If the request actually covers both, separate their references, quantities and approval requirements. Our buying advice is straightforward: photographs support identification, while the relevant system information and technical review determine what can proceed.
Should I request new or remanufactured injectors?
Request a written statement of supply condition for every quotation line. Delphi’s service guidance distinguishes new, remanufactured and repaired supply options. I ask what the stated condition means for the actual item offered, what is included and what documentation accompanies it. If an exchange arrangement is proposed, clarify the return requirement and associated charges before comparing prices. One supplier’s description does not validate another supplier’s workmanship or testing.
Delphi also describes contamination risks and protective caps during common-rail injector servicing. From a purchasing perspective, I recommend asking for protected openings, nozzle protection and clean individual packing, with each unit linked to its supplied records. Confirm what inspection or test information accompanies the actual offer. These commercial checks do not replace workshop acceptance, and Delphi’s general guidance does not specify the installation procedure for every Weichai engine.
Does one set mean one injector or a complete repair quantity?
Define the unit before comparing the total. I prefer an explicit count of individual injectors, followed by a separate description of any grouped supply. Confirm how many units your planned repair requires with the workshop. Do not infer that number from a seller’s use of “set.” The smallest word on a quotation can create the largest argument. Put the definition beside the price, where nobody needs a magnifying glass.
I use this comparison structure to expose differences before the purchasing decision. Record included items separately, and ask whether seals or other fitting components are supplied or require another line. The table is a quotation checklist, not a declaration that every injector needs the same accessories. A low unit price becomes useful only when the unit, condition and contents are equally clear across the offers you are comparing.
| Quotation field | What I ask the supplier to state |
|---|---|
| Component identity | Complete reference and proposed item description |
| Price unit | Price per individual injector or explicitly defined group |
| Order quantity | Individual unit count and grouped package count, if applicable |
| Supply condition | New, remanufactured or another clearly described condition |
| Included items | Itemized contents, separate accessories and exclusions |
Who should confirm calibration, coding and installation requirements?
Have the supplier and repair workshop confirm requirements for the identified system. DENSO’s September 2026 announcement distinguishes individually coded BER injectors from a specified IAM range using part-number-specific generic compensation codes. That announcement concerns selected Toyota and Isuzu applications; it provides no Weichai fitment evidence. I use it to illustrate why coding requirements cannot be assumed universal. Ask the workshop what applies to the actual supplied reference, who will perform any required procedure and which documents are needed.
I also separate purchasing approval from permission to install. A commercial quotation does not resolve every workshop question. Ask the repair team to review the proposed identification, supply scope and relevant instructions before dispatch where practical. If information is missing, record the open point and assign responsibility for resolving it.
What should I include in a complete overseas RFQ?
Send one organized enquiry containing the six items below. At Weichaistore, we recommend keeping photographs linked to the corresponding reference line, particularly for mixed orders. Include the destination and requested timing so commercial discussions start with the same assumptions. Ask for availability, packing arrangements and quotation terms to be stated explicitly. Treat any requested date as a requirement to discuss, rather than a delivery promise already made by the supplier.
- Complete injector references and clear descriptions of any uncertain markings.
- Engine model, serial number and readable nameplate photographs.
- Existing component photographs, including visible connections and identification marks.
- Required individual quantities and the definition of any requested set.
- Requested supply condition, included items and workshop documentation needs.
- Destination, requested timing, packing needs and commercial questions.
Keep a copy of the approved specification with the final quotation and packing information. Before accepting changes, ask the workshop to review any proposed substitute and update the written order accordingly. We would rather receive a precise follow-up question than an ambiguous instruction to “send the usual one.” For an enquiry, contact Weichaistore with the information above and identify the points that still need confirmation.
Conclusion
I recommend approving injector identity, supply condition, connections for review and explicit unit quantities before comparing final prices. Send Weichaistore your references, engine details and repair requirements. Resolve technical questions with the supplier and workshop before confirming the order.
