Vacuum Hose Set for Audi A4: Zinc Plated Steel
This vacuum hose set for the Audi A4 is specified around zinc plated steel, 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 | Vacuum Hose Set |
|---|---|
| Vehicle application | Audi A4 |
| Material / finish | Zinc Plated Steel |
| Typical use | Delivery Fleets |
| MOQ | 3,000 pieces per specification |
| Sampling | 10 working days, 3 days per revision |
| Bulk lead time | 15-40 days after approval |
| Compliance | IATF 16949 |
| Packing | 20 pieces per inner box, 500 per carton |
Material options
- Bronze — specified where the part sits close to a heat source
- Sintered Metal — specified where the part sits close to a heat source
- Carbon Steel — specified where the part sits close to a heat source
- Semi-Metallic Compound — selected when the part is exposed to weather and road salt
- Chromed Steel — the cost-effective default for volume programmes

Processes available
- rubber vulcanisation
- CNC machining
- injection moulding
- heat treatment
- cold forging
- powder coating
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 security patrols, long-distance touring, airport ground fleets, construction sites, farm use.
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
Do you handle mixed containers?
Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 3000 pieces per line.
What testing is included?
Standard lots ship with dimensional and hardness reports. IATF 16949 documentation is issued with the shipment when your market requires it.
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 is the minimum order quantity?
The standard MOQ is 3000 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.
Ask for the current catalogue and the specification sheet for this line.







