Transfer Case for Audi A4: Magnesium Alloy
This transfer case for the Audi A4 is specified around magnesium alloy, 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 lead time that slipped twice before bulk started, or warranty claims traced back to a single lot. Both are specification problems, and both are preventable.
Specification
| Product | Transfer Case |
|---|---|
| Vehicle application | Audi A4 |
| Material / finish | Magnesium Alloy |
| Typical use | Weekend Riding |
| MOQ | 2,000 pieces per specification |
| Sampling | 7 working days, 3 days per revision |
| Bulk lead time | 20-40 days after approval |
| Compliance | SAE J431 |
| Packing | 50 pieces per inner box, 500 per carton |
Material options
- Anodised Aluminium — the cost-effective default for volume programmes
- Semi-Metallic Compound — chosen where wear resistance comes first
- Carbon Fibre Composite — specified where the part sits close to a heat source
- Forged Aluminium — the cost-effective default for volume programmes
- EPDM Rubber — preferred when weight matters more than rigidity
Processes available
- sintering
- injection moulding
- anodising
- powder coating
- precision stamping
- shot blasting
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 weekend riding. Related applications include off-road trails, delivery fleets, food delivery, security patrols, passenger transport.
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
How long does sampling take?
Samples leave the factory in 7 working days, and each revision round adds about 3 days once you have seen the first piece.
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.
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.
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 part number, the annual volume and the target market, and we will come back with a specification and a sampling plan.
