Fuel Injector for Audi A4: EPDM Rubber
This fuel injector 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 premature wear on the first batch, or warranty claims traced back to a single lot. Both are specification problems, and both are preventable.

Specification
| Product | Fuel Injector |
|---|---|
| Vehicle application | Audi A4 |
| Material / finish | EPDM Rubber |
| Typical use | Delivery Fleets |
| MOQ | 1,000 pieces per specification |
| Sampling | 10 working days, 3 days per revision |
| Bulk lead time | 25-55 days after approval |
| Compliance | ISO/TS 16949 |
| Packing | 100 pieces per inner box, 200 per carton |
Material options
- Natural Rubber — preferred when weight matters more than rigidity
- Carbon Fibre Composite — chosen where wear resistance comes first
- Kevlar Composite — preferred when weight matters more than rigidity
- Aluminium Alloy — preferred when weight matters more than rigidity
- Magnesium Alloy — used when the finish has to hold a coating

Processes available
- powder coating
- surface grinding
- gravity casting
- sintering
- laser cutting
- heat treatment
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 delivery fleets. Related applications include rural transport, wet weather riding, long-distance touring, security patrols, weekend 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
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.
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.
What testing is included?
Standard lots ship with dimensional and hardness reports. ISO/TS 16949 documentation is issued with the shipment when your market requires it.
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.
Tell us the model, the fitment and the quantity and we will hold a production slot for you.







