Turn Signal Lamp for GMC Sierra: Aluminium Alloy
This turn signal lamp for the GMC Sierra is specified around aluminium 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 a fitment that looked right on paper and failed on the bench, or a specification nobody had written down. Both are specification problems, and both are preventable.
Specification
| Product | Turn Signal Lamp |
|---|---|
| Vehicle application | GMC Sierra |
| Material / finish | Aluminium Alloy |
| Typical use | Construction Sites |
| MOQ | 200 pieces per specification |
| Sampling | 7 working days, 3 days per revision |
| Bulk lead time | 20-55 days after approval |
| Compliance | SAE J431 |
| Packing | 20 pieces per inner box, 1000 per carton |
Material options
- Zinc Plated Steel — the cost-effective default for volume programmes
- Tempered Glass — the cost-effective default for volume programmes
- Silicone — chosen where wear resistance comes first
- Carbon Fibre Composite — used when the finish has to hold a coating
- Natural Rubber — specified where the part sits close to a heat source
Processes available
- die casting
- electroplating
- ultrasonic cleaning
- CNC machining
- powder coating
- robot welding
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 construction sites. Related applications include daily commuting, rural transport, heavy load hauling, 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
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.
Can you match an existing sample?
Send a sample and we will reverse-engineer the specification, then produce a counter sample for approval before any bulk starts.
What is the minimum order quantity?
The standard MOQ is 200 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.
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.
Send the part number, the annual volume and the target market, and we will come back with a specification and a sampling plan.
