Alternator for BYD F3: Polypropylene
This alternator for the BYD F3 is specified around polypropylene, which decides how it behaves in service far more than the part name does. We build to a written specification — base material, dimensions, finish and packing — and hold that specification on file so every reorder reproduces the approved piece.
The usual reason a programme changes supplier is not unit price. It is a supplier who changed material without saying so, or inconsistent hardness between lots. Both are specification problems, and both are preventable.

Specification
| Product | Alternator |
|---|---|
| Vehicle application | BYD F3 |
| Material / finish | Polypropylene |
| Typical use | Long-Distance Touring |
| MOQ | 2,000 pieces per specification |
| Sampling | 10 working days, 3 days per revision |
| Bulk lead time | 15-40 days after approval |
| Compliance | SAE J431 |
| Packing | 10 pieces per inner box, 1000 per carton |
Material options
- ABS Plastic — used when the finish has to hold a coating
- Neoprene — chosen where wear resistance comes first
- Natural Rubber — used when the finish has to hold a coating
- Silicone — the cost-effective default for volume programmes
- Aluminium Alloy — selected when the part is exposed to weather and road salt

Processes available
- gravity casting
- robot welding
- ultrasonic cleaning
- powder coating
- cold forging
- surface grinding
Fitment notes
Check whether the mounting points on your market version match the catalogue drawing — regional variants are the usual cause of a wrong first order.
Where it is used
The specification above is the one most often ordered for long-distance touring. Related applications include off-road trails, weekend riding, night riding, roadside assistance, security patrols.
Quality and packing
- In-line inspection with AQL 1.5 sampling on every lot.
- Dimensional report issued against the approved drawing.
- Carton marking and barcode to your specification.
- Golden sample retained at the factory as the reorder reference.
Questions buyers ask
How is packing specified?
Individual packing, inner box quantity and carton marking are confirmed at quotation stage so the cartons arrive ready for your warehouse.
What is the minimum order quantity?
The standard MOQ is 2000 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.
How long does sampling take?
Samples leave the factory in 10 working days, and each revision round adds about 3 days once you have seen the first piece.
Do you handle mixed containers?
Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 2000 pieces per line.
Send the specification you are working to and we will confirm what we can match, what we would change and why.







