Knock Sensor for GMC Sierra: Brass
This knock sensor for the GMC Sierra is specified around brass, 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 supplier who changed material without saying so, or premature wear on the first batch. Both are specification problems, and both are preventable.
Specification
| Product | Knock Sensor |
|---|---|
| Vehicle application | GMC Sierra |
| Material / finish | Brass |
| Typical use | Passenger Transport |
| MOQ | 1,000 pieces per specification |
| Sampling | 10 working days, 5 days per revision |
| Bulk lead time | 25-40 days after approval |
| Compliance | SGS |
| Packing | 50 pieces per inner box, 1000 per carton |
Material options
- Titanium Alloy — selected when the part is exposed to weather and road salt
- Polypropylene — preferred when weight matters more than rigidity
- Natural Rubber — preferred when weight matters more than rigidity
- Ceramic Composite — the cost-effective default for volume programmes
- Semi-Metallic Compound — selected when the part is exposed to weather and road salt
Processes available
- surface grinding
- powder coating
- shot blasting
- gravity casting
- injection moulding
- sintering
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 passenger transport. Related applications include wet weather riding, adventure travel, rental fleets, security patrols, weekend riding.
Quality and packing
- In-line inspection with AQL 2.5 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 SGS-compliant build instead of a fresh interpretation.
How long does sampling take?
Samples leave the factory in 10 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.
What testing is included?
Standard lots ship with dimensional and hardness reports. SGS documentation is issued with the shipment when your market requires it.
Ask for the current catalogue and the specification sheet for this line.
