Purge Valve for Chevrolet Silverado: Nylon 66
This purge valve for the Chevrolet Silverado is specified around nylon 66, 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 specification nobody had written down, or a specification nobody had written down. Both are specification problems, and both are preventable.

Specification
| Product | Purge Valve |
|---|---|
| Vehicle application | Chevrolet Silverado |
| Material / finish | Nylon 66 |
| Typical use | Heavy Load Hauling |
| MOQ | 500 pieces per specification |
| Sampling | 10 working days, 5 days per revision |
| Bulk lead time | 25-30 days after approval |
| Compliance | SAE J431 |
| Packing | 50 pieces per inner box, 1000 per carton |
Material options
- Reinforced Nylon — preferred when weight matters more than rigidity
- Sintered Metal — the cost-effective default for volume programmes
- High Density Foam — selected when the part is exposed to weather and road salt
- Anodised Aluminium — preferred when weight matters more than rigidity
- Kevlar Composite — chosen where wear resistance comes first

Processes available
- sintering
- CNC machining
- gravity casting
- ultrasonic cleaning
- heat treatment
- 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 urban courier work, motocross, rental fleets, rural transport, mining sites.
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
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 the specification be held on file?
Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the SAE J431-compliant build instead of a fresh interpretation.
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.
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.
Tell us the model, the fitment and the quantity and we will hold a production slot for you.







