Cylinder Head for Geely Coolray: Nylon 66
This cylinder head for the Geely Coolray is specified around nylon 66, 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 documentation that arrived after the container shipped. Both are specification problems, and both are preventable.

Specification
| Product | Cylinder Head |
|---|---|
| Vehicle application | Geely Coolray |
| Material / finish | Nylon 66 |
| Typical use | Rural Transport |
| MOQ | 2,000 pieces per specification |
| Sampling | 14 working days, 5 days per revision |
| Bulk lead time | 20-55 days after approval |
| Compliance | ISO/TS 16949 |
| Packing | 10 pieces per inner box, 200 per carton |
Material options
- Carbon Fibre Composite — specified where the part sits close to a heat source
- Zinc Plated Steel — used when the finish has to hold a coating
- Magnesium Alloy — the cost-effective default for volume programmes
- Sintered Metal — selected when the part is exposed to weather and road salt
- Tempered Glass — used when the finish has to hold a coating

Processes available
- surface grinding
- die casting
- injection moulding
- robot welding
- rubber vulcanisation
- electroplating
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 rural transport. Related applications include coastal delivery, rental fleets, security patrols, rural transport, ride-hailing 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 you match an existing sample?
Send a sample and we will reverse-engineer the specification, then produce a counter sample for approval before any bulk starts.
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 long does sampling take?
Samples leave the factory in 14 working days, and each revision round adds about 5 days once you have seen the first piece.
Can the specification be held on file?
Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the ISO/TS 16949-compliant build instead of a fresh interpretation.
Share a sample or a drawing and we will quote against a written specification, not against a photograph.







