Headlight Assembly for GMC Sierra: Polypropylene
This headlight assembly 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 documentation that arrived after the container shipped, or a fitment that looked right on paper and failed on the bench. Both are specification problems, and both are preventable.
Specification
| Product | Headlight Assembly |
|---|---|
| Vehicle application | GMC Sierra |
| Material / finish | Polypropylene |
| Typical use | Ride-Hailing Fleets |
| MOQ | 2,000 pieces per specification |
| Sampling | 7 working days, 3 days per revision |
| Bulk lead time | 15-40 days after approval |
| Compliance | SAE J431 |
| Packing | 50 pieces per inner box, 1000 per carton |
Material options
- ABS Plastic — specified where the part sits close to a heat source
- Carbon Steel — preferred when weight matters more than rigidity
- Magnesium Alloy — used when the finish has to hold a coating
- Chromed Steel — used when the finish has to hold a coating
- Carbon Fibre Composite — the cost-effective default for volume programmes
Processes available
- electroplating
- ultrasonic cleaning
- robot welding
- surface grinding
- laser cutting
- gravity 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 ride-hailing fleets. Related applications include construction sites, heavy load hauling, track days, adventure travel, ride-hailing fleets.
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 is packing specified?
Individual packing, inner box quantity and carton marking are confirmed at quotation stage so the cartons arrive ready for your warehouse.
Do you handle mixed containers?
Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 2000 pieces per line.
How long does sampling take?
Samples leave the factory in 7 working days, and each revision round adds about 3 days once you have seen the first piece.
What testing is included?
Standard lots ship with dimensional and hardness reports. SAE J431 documentation is issued with the shipment when your market requires it.
Share a sample or a drawing and we will quote against a written specification, not against a photograph.
