Expansion Valve for GMC Sierra: Powder Coated Steel
This expansion valve for the GMC Sierra is specified around powder coated steel, 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 a supplier who changed material without saying so. Both are specification problems, and both are preventable.
Specification
| Product | Expansion Valve |
|---|---|
| Vehicle application | GMC Sierra |
| Material / finish | Powder Coated Steel |
| Typical use | Mountain Roads |
| MOQ | 200 pieces per specification |
| Sampling | 10 working days, 5 days per revision |
| Bulk lead time | 25-55 days after approval |
| Compliance | TUV |
| Packing | 10 pieces per inner box, 1000 per carton |
Material options
- Powder Coated Steel — selected when the part is exposed to weather and road salt
- Stainless Steel — used when the finish has to hold a coating
- Brass — chosen where wear resistance comes first
- PU Leather — preferred when weight matters more than rigidity
- Nylon 66 — chosen where wear resistance comes first
Processes available
- CNC machining
- assembly line testing
- shot blasting
- electroplating
- gravity casting
- anodising
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 mountain roads. Related applications include farm use, passenger transport, ride-hailing fleets, rural transport, motocross.
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
Do you handle mixed containers?
Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 200 pieces per line.
Can the specification be held on file?
Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the TUV-compliant build instead of a fresh interpretation.
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. TUV documentation is issued with the shipment when your market requires it.
Send the part number, the annual volume and the target market, and we will come back with a specification and a sampling plan.
