Ignition Coil for Audi A4: Aluminium Alloy
This ignition coil for the Audi A4 is specified around aluminium alloy, 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 warranty claims traced back to a single lot, or premature wear on the first batch. Both are specification problems, and both are preventable.

Specification
| Product | Ignition Coil |
|---|---|
| Vehicle application | Audi A4 |
| Material / finish | Aluminium Alloy |
| Typical use | Security Patrols |
| MOQ | 200 pieces per specification |
| Sampling | 7 working days, 5 days per revision |
| Bulk lead time | 15-55 days after approval |
| Compliance | DOT |
| Packing | 20 pieces per inner box, 1000 per carton |
Material options
- Polypropylene — the cost-effective default for volume programmes
- Natural Rubber — preferred when weight matters more than rigidity
- Chromed Steel — the cost-effective default for volume programmes
- ABS Plastic — preferred when weight matters more than rigidity
- Neoprene — the cost-effective default for volume programmes

Processes available
- robot welding
- ultrasonic cleaning
- gravity casting
- sintering
- heat treatment
- cold forging
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 ride-hailing fleets, daily commuting, passenger transport, mining sites, heavy load hauling.
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 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.
What testing is included?
Standard lots ship with dimensional and hardness reports. DOT documentation is issued with the shipment when your market requires it.
Can the specification be held on file?
Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the DOT-compliant build instead of a fresh interpretation.
Send the part number, the annual volume and the target market, and we will come back with a specification and a sampling plan.







