Gearbox Solenoid for BYD F3: Carbon Fibre Composite
This gearbox solenoid for the BYD F3 is specified around carbon fibre composite, 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 | Gearbox Solenoid |
|---|---|
| Vehicle application | BYD F3 |
| Material / finish | Carbon Fibre Composite |
| Typical use | Daily Commuting |
| MOQ | 500 pieces per specification |
| Sampling | 10 working days, 5 days per revision |
| Bulk lead time | 20-40 days after approval |
| Compliance | ECE R90 |
| Packing | 100 pieces per inner box, 500 per carton |
Material options
- Reinforced Nylon — the cost-effective default for volume programmes
- ABS Plastic — preferred when weight matters more than rigidity
- Polypropylene — used when the finish has to hold a coating
- Chromed Steel — chosen where wear resistance comes first
- Bronze — preferred when weight matters more than rigidity

Processes available
- CNC machining
- die casting
- robot welding
- assembly line testing
- shot blasting
- 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 daily commuting. Related applications include ride-hailing fleets, off-road trails, coastal delivery, food delivery, passenger transport.
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 is the minimum order quantity?
The standard MOQ is 500 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.
Do you handle mixed containers?
Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 500 pieces per line.
What testing is included?
Standard lots ship with dimensional and hardness reports. ECE R90 documentation is issued with the shipment when your market requires it.
How long does sampling take?
Samples leave the factory in 10 working days, and each revision round adds about 5 days once you have seen the first piece.
Send the specification you are working to and we will confirm what we can match, what we would change and why.







