Cylinder Head for BMW X5: Chromed Steel
This cylinder head for the BMW X5 is specified around chromed 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 reorders that did not match the approved sample, or inconsistent hardness between lots. Both are specification problems, and both are preventable.

Specification
| Product | Cylinder Head |
|---|---|
| Vehicle application | BMW X5 |
| Material / finish | Chromed Steel |
| Typical use | Mountain Roads |
| MOQ | 200 pieces per specification |
| Sampling | 7 working days, 5 days per revision |
| Bulk lead time | 20-55 days after approval |
| Compliance | REACH |
| Packing | 100 pieces per inner box, 1000 per carton |
Material options
- Titanium Alloy — the cost-effective default for volume programmes
- Chromed Steel — used when the finish has to hold a coating
- Magnesium Alloy — selected when the part is exposed to weather and road salt
- Zinc Plated Steel — used when the finish has to hold a coating
- High Density Foam — specified where the part sits close to a heat source

Processes available
- sintering
- rubber vulcanisation
- heat treatment
- shot blasting
- assembly line testing
- gravity casting
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 mountain roads. Related applications include wet weather riding, urban courier work, night riding, mining sites, mountain roads.
Quality and packing
- In-line inspection with AQL 4.0 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 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 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 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.
Can the specification be held on file?
Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the REACH-compliant build instead of a fresh interpretation.
Ask for the current catalogue and the specification sheet for this line.







