Purge Valve for Audi A4: EPDM Rubber
This purge valve for the Audi A4 is specified around epdm 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 a supplier who changed material without saying so, or documentation that arrived after the container shipped. Both are specification problems, and both are preventable.

Specification
| Product | Purge Valve |
|---|---|
| Vehicle application | Audi A4 |
| Material / finish | EPDM Rubber |
| Typical use | Motocross |
| MOQ | 500 pieces per specification |
| Sampling | 10 working days, 3 days per revision |
| Bulk lead time | 25-40 days after approval |
| Compliance | E-mark |
| Packing | 10 pieces per inner box, 1000 per carton |
Material options
- Nylon 66 — chosen where wear resistance comes first
- Ceramic Composite — used when the finish has to hold a coating
- Powder Coated Steel — used when the finish has to hold a coating
- Bronze — chosen where wear resistance comes first
- PU Leather — the cost-effective default for volume programmes

Processes available
- surface grinding
- CNC machining
- precision stamping
- sintering
- heat treatment
- assembly line testing
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 motocross. Related applications include passenger transport, airport ground fleets, weekend riding, roadside assistance, long-distance touring.
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
Do you handle mixed containers?
Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 500 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 E-mark-compliant build instead of a fresh interpretation.
What testing is included?
Standard lots ship with dimensional and hardness reports. E-mark documentation is issued with the shipment when your market requires it.
How long does sampling take?
Samples leave the factory in 10 working days, and each revision round adds about 3 days once you have seen the first piece.
Tell us the model, the fitment and the quantity and we will hold a production slot for you.







