Radiator Cap for BMW X5: Bronze
This radiator cap for the BMW X5 is specified around bronze, 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 inconsistent hardness between lots. Both are specification problems, and both are preventable.

Specification
| Product | Radiator Cap |
|---|---|
| Vehicle application | BMW X5 |
| Material / finish | Bronze |
| Typical use | Airport Ground Fleets |
| MOQ | 3,000 pieces per specification |
| Sampling | 14 working days, 3 days per revision |
| Bulk lead time | 25-30 days after approval |
| Compliance | SGS |
| Packing | 10 pieces per inner box, 500 per carton |
Material options
- Zinc Plated Steel — chosen where wear resistance comes first
- Magnesium Alloy — chosen where wear resistance comes first
- Anodised Aluminium — preferred when weight matters more than rigidity
- Aluminium Alloy — the cost-effective default for volume programmes
- PVC Coated Fabric — specified where the part sits close to a heat source

Processes available
- electroplating
- anodising
- injection moulding
- heat treatment
- gravity casting
- powder coating
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 airport ground fleets. Related applications include rental fleets, long-distance touring, adventure travel, passenger transport, motocross.
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
How long does sampling take?
Samples leave the factory in 14 working days, and each revision round adds about 3 days once you have seen the first piece.
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. SGS documentation is issued with the shipment when your market requires it.
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.
Send the part number, the annual volume and the target market, and we will come back with a specification and a sampling plan.







