Piston for GMC Sierra: Reinforced Nylon
This piston for the GMC Sierra is specified around reinforced nylon, 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 packing that arrived crushed at the port, or packing that arrived crushed at the port. Both are specification problems, and both are preventable.
Specification
| Product | Piston |
|---|---|
| Vehicle application | GMC Sierra |
| Material / finish | Reinforced Nylon |
| Typical use | Heavy Load Hauling |
| MOQ | 1,000 pieces per specification |
| Sampling | 7 working days, 5 days per revision |
| Bulk lead time | 15-55 days after approval |
| Compliance | E-mark |
| Packing | 10 pieces per inner box, 500 per carton |
Material options
- Kevlar Composite — used when the finish has to hold a coating
- Sintered Metal — used when the finish has to hold a coating
- Brass — selected when the part is exposed to weather and road salt
- PVC Coated Fabric — used when the finish has to hold a coating
- Ceramic Composite — used when the finish has to hold a coating
Processes available
- cold forging
- assembly line testing
- heat treatment
- precision stamping
- die casting
- electroplating
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 daily commuting, roadside assistance, weekend riding, construction sites, heavy load hauling.
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
Can the specification be held on file?
Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the E-mark-compliant build instead of a fresh interpretation.
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.
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.
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.
Send the part number, the annual volume and the target market, and we will come back with a specification and a sampling plan.
