Crankshaft for Audi A4: Cast Iron
This crankshaft for the Audi A4 is specified around cast iron, 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 specification nobody had written down, or warranty claims traced back to a single lot. Both are specification problems, and both are preventable.
Specification
| Product | Crankshaft |
|---|---|
| Vehicle application | Audi A4 |
| Material / finish | Cast Iron |
| Typical use | Adventure Travel |
| MOQ | 500 pieces per specification |
| Sampling | 10 working days, 3 days per revision |
| Bulk lead time | 15-30 days after approval |
| Compliance | SAE J431 |
| Packing | 50 pieces per inner box, 1000 per carton |
Material options
- Sintered Metal — specified where the part sits close to a heat source
- Reinforced Nylon — selected when the part is exposed to weather and road salt
- Carbon Steel — the cost-effective default for volume programmes
- Natural Rubber — preferred when weight matters more than rigidity
- Cast Iron — the cost-effective default for volume programmes
Processes available
- assembly line testing
- cold forging
- powder coating
- injection moulding
- ultrasonic cleaning
- surface grinding
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 adventure travel. Related applications include coastal delivery, airport ground fleets, track days, roadside assistance, mountain roads.
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
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.
Do you handle mixed containers?
Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 500 pieces per line.
What is the minimum order quantity?
The standard MOQ is 500 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.
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.
Tell us the model, the fitment and the quantity and we will hold a production slot for you.
