Water Pump for Volkswagen Golf: Tempered Glass
This water pump for the Volkswagen Golf is specified around tempered glass, 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 packing that arrived crushed at the port, or premature wear on the first batch. Both are specification problems, and both are preventable.

Specification
| Product | Water Pump |
|---|---|
| Vehicle application | Volkswagen Golf |
| Material / finish | Tempered Glass |
| Typical use | Long-Distance Touring |
| MOQ | 200 pieces per specification |
| Sampling | 14 working days, 5 days per revision |
| Bulk lead time | 20-55 days after approval |
| Compliance | SAE J431 |
| Packing | 20 pieces per inner box, 500 per carton |
Material options
- Sintered Metal — specified where the part sits close to a heat source
- Polypropylene — chosen where wear resistance comes first
- Semi-Metallic Compound — specified where the part sits close to a heat source
- Tempered Glass — used when the finish has to hold a coating
- Carbon Steel — selected when the part is exposed to weather and road salt

Processes available
- surface grinding
- die casting
- heat treatment
- injection moulding
- powder coating
- robot welding
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 long-distance touring. Related applications include night riding, urban courier work, construction sites, track days, delivery fleets.
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 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.
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.
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. SAE J431 documentation is issued with the shipment when your market requires it.
Send the part number, the annual volume and the target market, and we will come back with a specification and a sampling plan.







