Brake Master Cylinder for Citroen C5 Aircross: Natural Rubber
This brake master cylinder for the Citroen C5 Aircross is specified around natural rubber, 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 reorders that did not match the approved sample, or inconsistent hardness between lots. Both are specification problems, and both are preventable.

Specification
| Product | Brake Master Cylinder |
|---|---|
| Vehicle application | Citroen C5 Aircross |
| Material / finish | Natural Rubber |
| Typical use | Ride-Hailing Fleets |
| MOQ | 2,000 pieces per specification |
| Sampling | 7 working days, 5 days per revision |
| Bulk lead time | 25-40 days after approval |
| Compliance | ISO/TS 16949 |
| Packing | 100 pieces per inner box, 500 per carton |
Material options
- Kevlar Composite — specified where the part sits close to a heat source
- Cast Iron — used when the finish has to hold a coating
- Zinc Plated Steel — selected when the part is exposed to weather and road salt
- Polypropylene — used when the finish has to hold a coating
- Titanium Alloy — preferred when weight matters more than rigidity

Processes available
- heat treatment
- anodising
- precision stamping
- electroplating
- rubber vulcanisation
- powder coating
Fitment notes
Keep the old part until the new one is on the bench. Comparing them side by side settles questions a photograph never will.
Where it is used
The specification above is the one most often ordered for ride-hailing fleets. Related applications include rural transport, urban courier work, motocross, weekend riding, wet weather riding.
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
Do you handle mixed containers?
Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 2000 pieces per line.
Can the specification be held on file?
Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the ISO/TS 16949-compliant build instead of a fresh interpretation.
What is the minimum order quantity?
The standard MOQ is 2000 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.
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.
Send the specification you are working to and we will confirm what we can match, what we would change and why.







