Wheel Cylinder for BMW 3 Series: Zinc Plated Steel
This wheel cylinder for the BMW 3 Series is specified around zinc plated steel, 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 a fitment that looked right on paper and failed on the bench. Both are specification problems, and both are preventable.
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Specification
| Product | Wheel Cylinder |
|---|---|
| Vehicle application | BMW 3 Series |
| Material / finish | Zinc Plated Steel |
| Typical use | Construction Sites |
| MOQ | 1,000 pieces per specification |
| Sampling | 10 working days, 5 days per revision |
| Bulk lead time | 15-55 days after approval |
| Compliance | TUV |
| Packing | 20 pieces per inner box, 200 per carton |
Material options
- Reinforced Nylon — the cost-effective default for volume programmes
- Powder Coated Steel — used when the finish has to hold a coating
- Polypropylene — selected when the part is exposed to weather and road salt
- Silicone — the cost-effective default for volume programmes
- Forged Aluminium — used when the finish has to hold a coating

Processes available
- gravity casting
- precision stamping
- sintering
- robot welding
- rubber vulcanisation
- cold forging
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 construction sites. Related applications include weekend riding, motocross, adventure travel, mining sites, night riding.
Quality and packing
- In-line inspection with AQL 2.5 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 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 1000 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 1000 pieces per line.
What testing is included?
Standard lots ship with dimensional and hardness reports. TUV documentation is issued with the shipment when your market requires it.
Tell us the model, the fitment and the quantity and we will hold a production slot for you.







