Car Alternator for BMW 3 Series: Silicone
This car alternator for the BMW 3 Series is specified around silicone, 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 packing that arrived crushed at the port, or a specification nobody had written down. Both are specification problems, and both are preventable.
Specification
| Product | Car Alternator |
|---|---|
| Vehicle application | BMW 3 Series |
| Material / finish | Silicone |
| Typical use | Security Patrols |
| MOQ | 200 pieces per specification |
| Sampling | 14 working days, 5 days per revision |
| Bulk lead time | 20-40 days after approval |
| Compliance | SAE J431 |
| Packing | 100 pieces per inner box, 200 per carton |
Material options
- Reinforced Nylon — used when the finish has to hold a coating
- Natural Rubber — preferred when weight matters more than rigidity
- Forged Aluminium — preferred when weight matters more than rigidity
- Nylon 66 — chosen where wear resistance comes first
- Stainless Steel — the cost-effective default for volume programmes
Processes available
- anodising
- shot blasting
- cold forging
- rubber vulcanisation
- CNC machining
- robot welding
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 security patrols. Related applications include night riding, motocross, wet weather riding, heavy load hauling, mountain roads.
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 testing is included?
Standard lots ship with dimensional and hardness reports. SAE J431 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.
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 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.
Share a sample or a drawing and we will quote against a written specification, not against a photograph.
