Brake Master Cylinder for BMW 3 Series: Sintered Metal
This brake master cylinder for the BMW 3 Series is specified around sintered metal, 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 specification nobody had written down, or lead time that slipped twice before bulk started. Both are specification problems, and both are preventable.
Specification
| Product | Brake Master Cylinder |
|---|---|
| Vehicle application | BMW 3 Series |
| Material / finish | Sintered Metal |
| Typical use | Weekend Riding |
| MOQ | 200 pieces per specification |
| Sampling | 14 working days, 5 days per revision |
| Bulk lead time | 20-40 days after approval |
| Compliance | DOT |
| Packing | 10 pieces per inner box, 200 per carton |
Material options
- Ceramic Composite — the cost-effective default for volume programmes
- High Density Foam — selected when the part is exposed to weather and road salt
- Anodised Aluminium — used when the finish has to hold a coating
- PVC Coated Fabric — preferred when weight matters more than rigidity
- Sintered Metal — selected when the part is exposed to weather and road salt
Processes available
- precision stamping
- robot welding
- anodising
- die casting
- electroplating
- laser cutting
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 weekend riding. Related applications include motocross, ride-hailing fleets, mountain roads, weekend riding, rural transport.
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
Can the specification be held on file?
Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the DOT-compliant build instead of a fresh interpretation.
How long does sampling take?
Samples leave the factory in 14 working days, and each revision round adds about 5 days once you have seen the first piece.
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.
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.
Tell us the model, the fitment and the quantity and we will hold a production slot for you.
