Car Cover for GMC Sierra: Magnesium Alloy
This car cover for the GMC Sierra is specified around magnesium alloy, 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 lead time that slipped twice before bulk started, or warranty claims traced back to a single lot. Both are specification problems, and both are preventable.
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Specification
| Product | Car Cover |
|---|---|
| Vehicle application | GMC Sierra |
| Material / finish | Magnesium Alloy |
| Typical use | Rural Transport |
| MOQ | 500 pieces per specification |
| Sampling | 7 working days, 3 days per revision |
| Bulk lead time | 20-55 days after approval |
| Compliance | CCC |
| Packing | 20 pieces per inner box, 500 per carton |
Material options
- Powder Coated Steel — the cost-effective default for volume programmes
- Sintered Metal — used when the finish has to hold a coating
- Reinforced Nylon — selected when the part is exposed to weather and road salt
- Titanium Alloy — the cost-effective default for volume programmes
- Nylon 66 — used when the finish has to hold a coating

Processes available
- injection moulding
- ultrasonic cleaning
- precision stamping
- shot blasting
- cold forging
- 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 rural transport. Related applications include adventure travel, urban courier work, mining sites, food delivery, coastal delivery.
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 the specification be held on file?
Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the CCC-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.
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 testing is included?
Standard lots ship with dimensional and hardness reports. CCC documentation is issued with the shipment when your market requires it.
Send the part number, the annual volume and the target market, and we will come back with a specification and a sampling plan.







