Wheel Hub Assembly for GMC Sierra: Sintered Metal
This wheel hub assembly for the GMC Sierra is specified around sintered metal, 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 premature wear on the first batch, or lead time that slipped twice before bulk started. Both are specification problems, and both are preventable.

Specification
| Product | Wheel Hub Assembly |
|---|---|
| Vehicle application | GMC Sierra |
| Material / finish | Sintered Metal |
| Typical use | Security Patrols |
| MOQ | 3,000 pieces per specification |
| Sampling | 14 working days, 3 days per revision |
| Bulk lead time | 15-30 days after approval |
| Compliance | E-mark |
| Packing | 10 pieces per inner box, 500 per carton |
Material options
- PVC Coated Fabric — preferred when weight matters more than rigidity
- Forged Aluminium — preferred when weight matters more than rigidity
- Anodised Aluminium — chosen where wear resistance comes first
- Chromed Steel — the cost-effective default for volume programmes
- Semi-Metallic Compound — chosen where wear resistance comes first

Processes available
- sintering
- cold forging
- gravity casting
- surface grinding
- assembly line testing
- die casting
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 security patrols. Related applications include ride-hailing fleets, mountain roads, daily commuting, weekend riding, 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
What testing is included?
Standard lots ship with dimensional and hardness reports. E-mark documentation is issued with the shipment when your market requires it.
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 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.
Do you handle mixed containers?
Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 3000 pieces per line.
Share a sample or a drawing and we will quote against a written specification, not against a photograph.







