Differential for Audi A4: Reinforced Nylon
This differential for the Audi A4 is specified around reinforced nylon, 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 reorders that did not match the approved sample, or packing that arrived crushed at the port. Both are specification problems, and both are preventable.
Specification
| Product | Differential |
|---|---|
| Vehicle application | Audi A4 |
| Material / finish | Reinforced Nylon |
| Typical use | Delivery Fleets |
| MOQ | 500 pieces per specification |
| Sampling | 14 working days, 5 days per revision |
| Bulk lead time | 15-30 days after approval |
| Compliance | IATF 16949 |
| Packing | 20 pieces per inner box, 1000 per carton |
Material options
- Zinc Plated Steel — the cost-effective default for volume programmes
- PVC Coated Fabric — preferred when weight matters more than rigidity
- Bronze — chosen where wear resistance comes first
- Natural Rubber — preferred when weight matters more than rigidity
- Kevlar Composite — chosen where wear resistance comes first
Processes available
- electroplating
- laser cutting
- rubber vulcanisation
- shot blasting
- anodising
- ultrasonic cleaning
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 delivery fleets. Related applications include farm use, night riding, rental fleets, motocross, delivery fleets.
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
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.
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.
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.
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.
Send the specification you are working to and we will confirm what we can match, what we would change and why.
