Trailing Arm for BYD F3: Powder Coated Steel
This trailing arm for the BYD F3 is specified around powder coated steel, 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 reorders that did not match the approved sample, or a supplier who changed material without saying so. Both are specification problems, and both are preventable.

Specification
| Product | Trailing Arm |
|---|---|
| Vehicle application | BYD F3 |
| Material / finish | Powder Coated Steel |
| Typical use | Wet Weather Riding |
| MOQ | 200 pieces per specification |
| Sampling | 14 working days, 3 days per revision |
| Bulk lead time | 15-30 days after approval |
| Compliance | SAE J431 |
| Packing | 100 pieces per inner box, 200 per carton |
Material options
- Neoprene — used when the finish has to hold a coating
- Aluminium Alloy — used when the finish has to hold a coating
- Brass — specified where the part sits close to a heat source
- EPDM Rubber — chosen where wear resistance comes first
- Sintered Metal — specified where the part sits close to a heat source

Processes available
- precision stamping
- rubber vulcanisation
- surface grinding
- laser cutting
- ultrasonic cleaning
- injection moulding
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 wet weather riding. Related applications include airport ground fleets, adventure travel, wet weather riding, mining sites, coastal delivery.
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
Can the specification be held on file?
Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the SAE J431-compliant build instead of a fresh interpretation.
What is the minimum order quantity?
The standard MOQ is 200 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.
Can you match an existing sample?
Send a sample and we will reverse-engineer the specification, then produce a counter sample for approval before any bulk starts.
What testing is included?
Standard lots ship with dimensional and hardness reports. SAE J431 documentation is issued with the shipment when your market requires it.
Ask for the current catalogue and the specification sheet for this line.







