Piston Ring for BMW X5: Kevlar Composite
This piston ring for the BMW X5 is specified around kevlar composite, 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 inconsistent hardness between lots, or premature wear on the first batch. Both are specification problems, and both are preventable.
Specification
| Product | Piston Ring |
|---|---|
| Vehicle application | BMW X5 |
| Material / finish | Kevlar Composite |
| Typical use | Night Riding |
| MOQ | 200 pieces per specification |
| Sampling | 7 working days, 3 days per revision |
| Bulk lead time | 15-55 days after approval |
| Compliance | ISO 9001 |
| Packing | 10 pieces per inner box, 1000 per carton |
Material options
- Natural Rubber — the cost-effective default for volume programmes
- PU Leather — used when the finish has to hold a coating
- PVC Coated Fabric — preferred when weight matters more than rigidity
- Chromed Steel — specified where the part sits close to a heat source
- Stainless Steel — preferred when weight matters more than rigidity
Processes available
- die casting
- injection moulding
- rubber vulcanisation
- surface grinding
- powder coating
- shot blasting
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 night riding. Related applications include long-distance touring, weekend riding, airport ground fleets, delivery fleets, heavy load hauling.
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 long does sampling take?
Samples leave the factory in 7 working days, and each revision round adds about 3 days once you have seen the first piece.
Do you handle mixed containers?
Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 200 pieces per line.
Can the specification be held on file?
Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the ISO 9001-compliant build instead of a fresh interpretation.
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.
Ask for the current catalogue and the specification sheet for this line.
