Roof Box for GMC Sierra: Mountain Roads
This roof box is the version most often ordered for mountain roads on the GMC Sierra. It is supplied to a written specification covering material, dimensions, finish and packing, and that specification stays on file — so a repeat order is a reorder, not a new negotiation.
What usually goes wrong is ordinary: lead time that slipped twice before bulk started, or a specification nobody had written down. Both come from a specification that was never written down.
Specification
| Product | Roof Box |
|---|---|
| Vehicle application | GMC Sierra |
| Intended use | Mountain Roads |
| Base material | Tempered Glass |
| MOQ | 500 pieces per specification |
| Sampling | 10 working days, 3 days per revision |
| Compliance | CCC |
Why this version
- Material — Tempered Glass, chosen for the mountain roads duty cycle rather than for showroom appearance.
- Capacity — sized for continuous use, not for intermittent demonstration use.
- Mounting — fixed to the GMC Sierra without modification to the vehicle.
- Service — wearing parts are replaceable without replacing the whole unit.
- Packing — carton sized for a warehouse shelf, marked to your barcode.
Related lines
- Cargo Carrier
- Trailer Hitch
- Valve Cap Set
- Tyre Inflator
- Sun Shade
- Tricycle Parts Set
Fitment notes
Keep the old part until the new one is on the bench. Comparing them side by side settles questions a photograph never will.
Ordering checklist
- Confirm the model year, market version and mounting points.
- State the duty cycle; mountain roads is not the same specification as occasional use.
- Approve a sample built from bulk material.
- Fix packing and marking before the first container.
- Inspect before balance payment.
Questions buyers ask
How long does sampling take?
Samples leave the factory in 10 working days, and each revision round adds about 3 days once you have seen the first piece.
What is the minimum order quantity?
The standard MOQ is 500 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.
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.
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.
Ask for the current catalogue and the specification sheet for this line.
