Differential for Geely Coolray: Forged Aluminium
This differential for the Geely Coolray is specified around forged aluminium, 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 specification nobody had written down, or lead time that slipped twice before bulk started. Both are specification problems, and both are preventable.

Specification
| Product | Differential |
|---|---|
| Vehicle application | Geely Coolray |
| Material / finish | Forged Aluminium |
| Typical use | Daily Commuting |
| MOQ | 200 pieces per specification |
| Sampling | 10 working days, 3 days per revision |
| Bulk lead time | 25-30 days after approval |
| Compliance | DOT |
| Packing | 100 pieces per inner box, 1000 per carton |
Material options
- High Density Foam — the cost-effective default for volume programmes
- Ceramic Composite — chosen where wear resistance comes first
- Polypropylene — selected when the part is exposed to weather and road salt
- Magnesium Alloy — the cost-effective default for volume programmes
- Bronze — preferred when weight matters more than rigidity

Processes available
- die casting
- shot blasting
- surface grinding
- rubber vulcanisation
- anodising
- 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 daily commuting. Related applications include farm use, mountain roads, delivery fleets, heavy load hauling, long-distance touring.
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
Can the specification be held on file?
Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the DOT-compliant build instead of a fresh interpretation.
What testing is included?
Standard lots ship with dimensional and hardness reports. DOT documentation is issued with the shipment when your market requires it.
How long does sampling take?
Samples leave the factory in 10 working days, and each revision round adds about 3 days once you have seen the first piece.
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.
Send the part number, the annual volume and the target market, and we will come back with a specification and a sampling plan.







