Brake Disc for GMC Sierra: Kevlar Composite
This brake disc for the GMC Sierra 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 warranty claims traced back to a single lot, or a specification nobody had written down. Both are specification problems, and both are preventable.

Specification
| Product | Brake Disc |
|---|---|
| Vehicle application | GMC Sierra |
| Material / finish | Kevlar Composite |
| Typical use | Heavy Load Hauling |
| MOQ | 200 pieces per specification |
| Sampling | 7 working days, 5 days per revision |
| Bulk lead time | 20-40 days after approval |
| Compliance | REACH |
| Packing | 50 pieces per inner box, 1000 per carton |
Material options
- Carbon Steel — chosen where wear resistance comes first
- Titanium Alloy — preferred when weight matters more than rigidity
- Magnesium Alloy — specified where the part sits close to a heat source
- Cast Iron — the cost-effective default for volume programmes
- ABS Plastic — used when the finish has to hold a coating

Processes available
- gravity casting
- injection moulding
- die casting
- assembly line testing
- CNC machining
- precision stamping
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 heavy load hauling. Related applications include mining sites, adventure travel, farm use, rental fleets, security patrols.
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 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 REACH-compliant build instead of a fresh interpretation.
What testing is included?
Standard lots ship with dimensional and hardness reports. REACH documentation is issued with the shipment when your market requires it.
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.







