Fuel Tank Cap for GMC Sierra: Reinforced Nylon
This fuel tank cap 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 a fitment that looked right on paper and failed on the bench, or a supplier who changed material without saying so. Both are specification problems, and both are preventable.
Specification
| Product | Fuel Tank Cap |
|---|---|
| Vehicle application | GMC Sierra |
| Material / finish | Reinforced Nylon |
| Typical use | Farm Use |
| MOQ | 200 pieces per specification |
| Sampling | 10 working days, 5 days per revision |
| Bulk lead time | 25-55 days after approval |
| Compliance | SAE J431 |
| Packing | 20 pieces per inner box, 200 per carton |
Material options
- Chromed Steel — preferred when weight matters more than rigidity
- Stainless Steel — used when the finish has to hold a coating
- Forged Aluminium — chosen where wear resistance comes first
- Semi-Metallic Compound — used when the finish has to hold a coating
- Zinc Plated Steel — selected when the part is exposed to weather and road salt
Processes available
- heat treatment
- surface grinding
- laser cutting
- robot welding
- sintering
- powder coating
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.
Where it is used
The specification above is the one most often ordered for farm use. Related applications include long-distance touring, urban courier work, roadside assistance, security patrols, daily commuting.
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
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 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 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 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.
Share a sample or a drawing and we will quote against a written specification, not against a photograph.
