Car Speaker for GMC Sierra: Polypropylene
This car speaker for the GMC Sierra is specified around polypropylene, 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 inconsistent hardness between lots, or a fitment that looked right on paper and failed on the bench. Both are specification problems, and both are preventable.
Specification
| Product | Car Speaker |
|---|---|
| Vehicle application | GMC Sierra |
| Material / finish | Polypropylene |
| Typical use | Adventure Travel |
| MOQ | 3,000 pieces per specification |
| Sampling | 14 working days, 5 days per revision |
| Bulk lead time | 20-40 days after approval |
| Compliance | SGS |
| Packing | 50 pieces per inner box, 200 per carton |
Material options
- Chromed Steel — selected when the part is exposed to weather and road salt
- Stainless Steel — preferred when weight matters more than rigidity
- Brass — selected when the part is exposed to weather and road salt
- Nylon 66 — specified where the part sits close to a heat source
- Carbon Steel — chosen where wear resistance comes first
Processes available
- gravity casting
- die casting
- surface grinding
- sintering
- shot blasting
- assembly line testing
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 adventure travel. Related applications include roadside assistance, delivery fleets, motocross, construction sites, rental 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
Do you handle mixed containers?
Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 3000 pieces per line.
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. SGS documentation is issued with the shipment when your market requires it.
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.
Tell us the model, the fitment and the quantity and we will hold a production slot for you.
