Brake Master Cylinder for BMW 3 Series: Carbon Fibre Composite
This brake master cylinder for the BMW 3 Series is specified around carbon fibre composite, 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 fitment that looked right on paper and failed on the bench, or a specification nobody had written down. Both are specification problems, and both are preventable.
Specification
| Product | Brake Master Cylinder |
|---|---|
| Vehicle application | BMW 3 Series |
| Material / finish | Carbon Fibre Composite |
| Typical use | Rental Fleets |
| MOQ | 500 pieces per specification |
| Sampling | 14 working days, 5 days per revision |
| Bulk lead time | 15-30 days after approval |
| Compliance | E-mark |
| Packing | 10 pieces per inner box, 1000 per carton |
Material options
- Aluminium Alloy — chosen where wear resistance comes first
- Natural Rubber — selected when the part is exposed to weather and road salt
- PVC Coated Fabric — specified where the part sits close to a heat source
- Polypropylene — preferred when weight matters more than rigidity
- Magnesium Alloy — used when the finish has to hold a coating
Processes available
- shot blasting
- robot welding
- laser cutting
- powder coating
- surface grinding
- injection moulding
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 rental fleets. Related applications include night riding, track days, passenger transport, off-road trails, 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 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 500 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.
Do you handle mixed containers?
Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 500 pieces per line.
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.
