Start with the number, not the part name
When a workshop asks for "a Chery control arm" or "a BYD sensor", the description is usually too loose for a bulk quote. A Chinese export model can use different parts by market, year, engine, trim, left-hand or right-hand drive setup, and production batch. The OEM number is the cleaner starting point because it points to a specific part family instead of a general name.
For distributors, the goal is not to become an EPC operator. The goal is to send enough evidence so a supplier can confirm the part without guessing.
Where to find the OEM number
The number may appear in more than one place. Some are easy to read, some need a photo from the workshop.
- -On the original part body, bracket, housing or backing plate.
- -On the old package label if the previous order was reliable.
- -In an EPC screen, parts catalogue export or dealer invoice.
- -In a workshop note attached to the VIN or vehicle plate.
- -In a previous purchase list from the same customer.
If the number is stamped on the part, send a clear close-up photo. If it comes from an EPC screen, send the screen together with the vehicle model, year and market. A number without context is better than a part name, but it still needs confirmation.
Clean the number before asking for a quote
OEM numbers are often copied with spaces, hyphens, extra suffixes or local supplier prefixes. Before you send a list, normalize the format as much as possible.
- -Keep the original number exactly as shown.
- -Add a cleaned version without spaces if available.
- -Do not delete suffix letters unless you know they are not part of the number.
- -Separate quantity from the part number.
- -Put unclear numbers in a note instead of silently changing them.
For example, if a workshop sends a photo with a partly hidden label, do not invent the missing digits. Send the photo and mark the number as uncertain. This saves time because the sourcing team can check the shape, position and related fitment data together.
Use cross reference carefully
An interchange number can help, but it should not replace the OEM number. Aftermarket brands may group several applications under one reference, while the vehicle may still need a specific mounting, sensor, length or axle position.
The safest order is:
- -OEM number from the original part or EPC.
- -Vehicle context: brand, model, year, market and VIN if available.
- -Part photo and measurement if the number is uncertain.
- -Interchange number as supporting evidence.
You can start from OEM Cross Reference when you have a number, then move to a specific OEM detail page or send a quote request if the match still needs human confirmation.
What PartSail needs from you
A quote can usually move faster when the first message includes:
- -OEM number or the clearest possible photo of the number.
- -Vehicle brand and market model name.
- -VIN or EPC code if the vehicle is hard to identify.
- -Target quantity and destination country.
- -Quality preference, such as genuine, OES or branded aftermarket.
If you already know the product category, browse Chinese vehicle parts categories and add the relevant item to your inquiry. If you have several numbers, send them as a list through Bulk RFQ instead of one message per part.
A good OEM request is short but complete
You do not need a long explanation. A clean request might look like this:
- -OEM: T11-3501080
- -Vehicle: Chery Tiggo, Russia market, front axle
- -Evidence: old part photo and EPC screenshot
- -Quantity: 80 sets
- -Quality: branded aftermarket or OES equivalent
That is enough for a sourcing engineer to check the number, confirm the part family, look for available product coverage, and reply with a realistic next step.