Wheel Cylinder for Audi A4: PU Leather
This wheel cylinder for the Audi A4 is specified around pu leather, 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 documentation that arrived after the container shipped, or premature wear on the first batch. Both are specification problems, and both are preventable.
Specification
| Product | Wheel Cylinder |
|---|---|
| Vehicle application | Audi A4 |
| Material / finish | PU Leather |
| Typical use | Mountain Roads |
| MOQ | 500 pieces per specification |
| Sampling | 14 working days, 3 days per revision |
| Bulk lead time | 25-40 days after approval |
| Compliance | SAE J431 |
| Packing | 100 pieces per inner box, 500 per carton |
Material options
- Natural Rubber — specified where the part sits close to a heat source
- Cast Iron — specified where the part sits close to a heat source
- PU Leather — the cost-effective default for volume programmes
- Chromed Steel — chosen where wear resistance comes first
- Aluminium Alloy — the cost-effective default for volume programmes
Processes available
- shot blasting
- sintering
- laser cutting
- heat treatment
- assembly line testing
- gravity casting
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 mountain roads. Related applications include roadside assistance, adventure travel, farm use, security patrols, food delivery.
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 SAE J431-compliant build instead of a fresh interpretation.
Do you handle mixed containers?
Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 500 pieces per line.
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.
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.
Tell us the model, the fitment and the quantity and we will hold a production slot for you.
