Timing Tensioner for BYD F3: Cast Iron
This timing tensioner for the BYD F3 is specified around cast iron, 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 lead time that slipped twice before bulk started. Both are specification problems, and both are preventable.

Specification
| Product | Timing Tensioner |
|---|---|
| Vehicle application | BYD F3 |
| Material / finish | Cast Iron |
| Typical use | Farm Use |
| MOQ | 3,000 pieces per specification |
| Sampling | 10 working days, 3 days per revision |
| Bulk lead time | 15-30 days after approval |
| Compliance | ISO/TS 16949 |
| Packing | 100 pieces per inner box, 200 per carton |
Material options
- Semi-Metallic Compound — chosen where wear resistance comes first
- Kevlar Composite — chosen where wear resistance comes first
- Natural Rubber — preferred when weight matters more than rigidity
- Cast Iron — specified where the part sits close to a heat source
- Polypropylene — used when the finish has to hold a coating

Processes available
- powder coating
- die casting
- laser cutting
- gravity casting
- surface grinding
- sintering
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 farm use. Related applications include wet weather riding, airport ground fleets, passenger transport, long-distance touring, motocross.
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
What testing is included?
Standard lots ship with dimensional and hardness reports. ISO/TS 16949 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.
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 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.
Send the specification you are working to and we will confirm what we can match, what we would change and why.







