Air Filter for BMW 3 Series: Brass
This air filter for the BMW 3 Series is specified around brass, 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 a supplier who changed material without saying so, or warranty claims traced back to a single lot. Both are specification problems, and both are preventable.
Specification
| Product | Air Filter |
|---|---|
| Vehicle application | BMW 3 Series |
| Material / finish | Brass |
| Typical use | Weekend Riding |
| MOQ | 1,000 pieces per specification |
| Sampling | 14 working days, 3 days per revision |
| Bulk lead time | 25-40 days after approval |
| Compliance | CCC |
| Packing | 50 pieces per inner box, 200 per carton |
Material options
- Kevlar Composite — preferred when weight matters more than rigidity
- Semi-Metallic Compound — chosen where wear resistance comes first
- ABS Plastic — used when the finish has to hold a coating
- Titanium Alloy — selected when the part is exposed to weather and road salt
- Magnesium Alloy — used when the finish has to hold a coating
Processes available
- precision stamping
- CNC machining
- shot blasting
- sintering
- cold forging
- surface grinding
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 motocross, rental fleets, roadside assistance, mining sites, mountain roads.
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
Can the specification be held on file?
Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the CCC-compliant build instead of a fresh interpretation.
What is the minimum order quantity?
The standard MOQ is 1000 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 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.
Send the part number, the annual volume and the target market, and we will come back with a specification and a sampling plan.
