Heater Core for Audi A4: Bronze
This heater core 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 documentation that arrived after the container shipped, or a fitment that looked right on paper and failed on the bench. Both are specification problems, and both are preventable.

Specification
| Product | Heater Core |
|---|---|
| Vehicle application | Audi A4 |
| Material / finish | Bronze |
| Typical use | Security Patrols |
| MOQ | 1,000 pieces per specification |
| Sampling | 14 working days, 5 days per revision |
| Bulk lead time | 20-55 days after approval |
| Compliance | ISO 9001 |
| Packing | 10 pieces per inner box, 1000 per carton |
Material options
- Carbon Steel — used when the finish has to hold a coating
- EPDM Rubber — the cost-effective default for volume programmes
- Natural Rubber — selected when the part is exposed to weather and road salt
- PVC Coated Fabric — preferred when weight matters more than rigidity
- Polypropylene — chosen where wear resistance comes first

Processes available
- ultrasonic cleaning
- sintering
- injection moulding
- powder coating
- rubber vulcanisation
- die casting
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 security patrols. Related applications include long-distance touring, track days, daily commuting, airport ground fleets, motocross.
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
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.
How long does sampling take?
Samples leave the factory in 14 working days, and each revision round adds about 5 days once you have seen the first piece.
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 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.
Share a sample or a drawing and we will quote against a written specification, not against a photograph.







