Expansion Tank for Volkswagen Golf: Carbon Steel
This expansion tank for the Volkswagen Golf is specified around carbon 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 specification nobody had written down, or a specification nobody had written down. Both are specification problems, and both are preventable.
Specification
| Product | Expansion Tank |
|---|---|
| Vehicle application | Volkswagen Golf |
| Material / finish | Carbon Steel |
| Typical use | Adventure Travel |
| MOQ | 2,000 pieces per specification |
| Sampling | 14 working days, 5 days per revision |
| Bulk lead time | 15-55 days after approval |
| Compliance | TUV |
| Packing | 10 pieces per inner box, 500 per carton |
Material options
- Natural Rubber — specified where the part sits close to a heat source
- Zinc Plated Steel — selected when the part is exposed to weather and road salt
- PU Leather — preferred when weight matters more than rigidity
- Ceramic Composite — chosen where wear resistance comes first
- EPDM Rubber — preferred when weight matters more than rigidity
Processes available
- injection moulding
- gravity casting
- powder coating
- robot welding
- electroplating
- cold forging
Fitment notes
Keep the old part until the new one is on the bench. Comparing them side by side settles questions a photograph never will.
Where it is used
The specification above is the one most often ordered for adventure travel. Related applications include wet weather riding, motocross, track days, urban courier work, adventure travel.
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
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.
What testing is included?
Standard lots ship with dimensional and hardness reports. TUV documentation is issued with the shipment when your market requires it.
What is the minimum order quantity?
The standard MOQ is 2000 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.
Send the part number, the annual volume and the target market, and we will come back with a specification and a sampling plan.
