Piston Ring for BYD F3: Reinforced Nylon
This piston ring for the BYD F3 is specified around reinforced nylon, 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 documentation that arrived after the container shipped, or premature wear on the first batch. Both are specification problems, and both are preventable.

Specification
| Product | Piston Ring |
|---|---|
| Vehicle application | BYD F3 |
| Material / finish | Reinforced Nylon |
| Typical use | Security Patrols |
| MOQ | 200 pieces per specification |
| Sampling | 14 working days, 5 days per revision |
| Bulk lead time | 25-30 days after approval |
| Compliance | ISO 9001 |
| Packing | 20 pieces per inner box, 200 per carton |
Material options
- Nylon 66 — used when the finish has to hold a coating
- Ceramic Composite — chosen where wear resistance comes first
- Carbon Fibre Composite — specified where the part sits close to a heat source
- Chromed Steel — chosen where wear resistance comes first
- Polypropylene — chosen where wear resistance comes first

Processes available
- sintering
- cold forging
- heat treatment
- assembly line testing
- rubber vulcanisation
- robot welding
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 security patrols. Related applications include delivery fleets, coastal delivery, passenger transport, airport ground fleets, ride-hailing fleets.
Quality and packing
- In-line inspection with AQL 4.0 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
What happens if a lot fails inspection?
The lot is re-inspected against the golden sample, and replacement pieces ship on the next available booking at our cost.
How long does sampling take?
Samples leave the factory in 14 working days, and each revision round adds about 5 days once you have seen the first piece.
What testing is included?
Standard lots ship with dimensional and hardness reports. ISO 9001 documentation is issued with the shipment when your market requires it.
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.
Send the specification you are working to and we will confirm what we can match, what we would change and why.







