Trailing Arm for Tesla Model 3: Forged Aluminium
This trailing arm for the Tesla Model 3 is specified around forged aluminium, 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 lead time that slipped twice before bulk started. Both are specification problems, and both are preventable.

Specification
| Product | Trailing Arm |
|---|---|
| Vehicle application | Tesla Model 3 |
| Material / finish | Forged Aluminium |
| Typical use | Coastal Delivery |
| MOQ | 200 pieces per specification |
| Sampling | 7 working days, 5 days per revision |
| Bulk lead time | 25-40 days after approval |
| Compliance | IATF 16949 |
| Packing | 100 pieces per inner box, 200 per carton |
Material options
- Semi-Metallic Compound — the cost-effective default for volume programmes
- Stainless Steel — chosen where wear resistance comes first
- Magnesium Alloy — chosen where wear resistance comes first
- PVC Coated Fabric — specified where the part sits close to a heat source
- Carbon Steel — preferred when weight matters more than rigidity

Processes available
- cold forging
- injection moulding
- laser cutting
- assembly line testing
- anodising
- precision stamping
Fitment notes
Confirm the fitment against the VIN or the frame number before ordering; two model years often share a name and not a part.
Where it is used
The specification above is the one most often ordered for coastal delivery. Related applications include ride-hailing fleets, mountain roads, motocross, roadside assistance, coastal delivery.
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
Do you handle mixed containers?
Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 200 pieces per line.
How long does sampling take?
Samples leave the factory in 7 working days, and each revision round adds about 5 days once you have seen the first piece.
Can the specification be held on file?
Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the IATF 16949-compliant build instead of a fresh interpretation.
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.
Tell us the model, the fitment and the quantity and we will hold a production slot for you.







