Valve Cover for BMW 3 Series: Magnesium Alloy
This valve cover for the BMW 3 Series 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 premature wear on the first batch, or a supplier who changed material without saying so. Both are specification problems, and both are preventable.
Specification
| Product | Valve Cover |
|---|---|
| Vehicle application | BMW 3 Series |
| Material / finish | Magnesium Alloy |
| Typical use | Airport Ground Fleets |
| MOQ | 200 pieces per specification |
| Sampling | 14 working days, 5 days per revision |
| Bulk lead time | 20-30 days after approval |
| Compliance | SGS |
| Packing | 10 pieces per inner box, 200 per carton |
Material options
- Carbon Fibre Composite — used when the finish has to hold a coating
- Reinforced Nylon — the cost-effective default for volume programmes
- Magnesium Alloy — used when the finish has to hold a coating
- Zinc Plated Steel — preferred when weight matters more than rigidity
- Silicone — preferred when weight matters more than rigidity
Processes available
- die casting
- laser cutting
- shot blasting
- cold forging
- injection moulding
- robot welding
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 airport ground fleets. Related applications include off-road trails, rental fleets, delivery fleets, security patrols, food delivery.
Quality and packing
- In-line inspection with AQL 1.5 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
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.
What happens if a lot fails inspection?
The lot is re-inspected against the golden sample, and replacement pieces ship on the next available booking at our cost.
Can the specification be held on file?
Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the SGS-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.
Ask for the current catalogue and the specification sheet for this line.
