Piston for BYD F3: Semi-Metallic Compound
This piston for the BYD F3 is specified around semi-metallic compound, 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 premature wear on the first batch, or warranty claims traced back to a single lot. Both are specification problems, and both are preventable.

Specification
| Product | Piston |
|---|---|
| Vehicle application | BYD F3 |
| Material / finish | Semi-Metallic Compound |
| Typical use | Passenger Transport |
| MOQ | 2,000 pieces per specification |
| Sampling | 10 working days, 3 days per revision |
| Bulk lead time | 15-55 days after approval |
| Compliance | E-mark |
| Packing | 100 pieces per inner box, 500 per carton |
Material options
- Neoprene — the cost-effective default for volume programmes
- Carbon Steel — preferred when weight matters more than rigidity
- Anodised Aluminium — used when the finish has to hold a coating
- Ceramic Composite — selected when the part is exposed to weather and road salt
- PVC Coated Fabric — preferred when weight matters more than rigidity

Processes available
- injection moulding
- assembly line testing
- rubber vulcanisation
- sintering
- anodising
- surface grinding
Fitment notes
Keep the old part until the new one is on the bench. Comparing them side by side settles questions a photograph never will.
Where it is used
The specification above is the one most often ordered for passenger transport. Related applications include long-distance touring, passenger transport, delivery fleets, heavy load hauling, ride-hailing fleets.
Quality and packing
- In-line inspection with AQL 2.5 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
Do you handle mixed containers?
Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 2000 pieces per line.
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.
What testing is included?
Standard lots ship with dimensional and hardness reports. E-mark documentation is issued with the shipment when your market requires it.
Send the specification you are working to and we will confirm what we can match, what we would change and why.







