Piston Ring for Audi A4: Bronze
This piston ring for the Audi A4 is specified around bronze, 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 packing that arrived crushed at the port. Both are specification problems, and both are preventable.
Specification
| Product | Piston Ring |
|---|---|
| Vehicle application | Audi A4 |
| Material / finish | Bronze |
| Typical use | Ride-Hailing Fleets |
| MOQ | 200 pieces per specification |
| Sampling | 7 working days, 3 days per revision |
| Bulk lead time | 25-30 days after approval |
| Compliance | SAE J431 |
| Packing | 10 pieces per inner box, 500 per carton |
Material options
- Polypropylene — selected when the part is exposed to weather and road salt
- Zinc Plated Steel — preferred when weight matters more than rigidity
- High Density Foam — preferred when weight matters more than rigidity
- Titanium Alloy — the cost-effective default for volume programmes
- Reinforced Nylon — used when the finish has to hold a coating
Processes available
- anodising
- gravity casting
- surface grinding
- robot welding
- sintering
- heat treatment
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 weekend riding, coastal delivery, mining sites, roadside assistance, passenger transport.
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
What is the minimum order quantity?
The standard MOQ is 200 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.
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 200 pieces per line.
Send the specification you are working to and we will confirm what we can match, what we would change and why.
