Spark Plug for Mercedes-Benz G-Class: Ceramic Composite
This spark plug for the Mercedes-Benz G-Class is specified around ceramic composite, 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 inconsistent hardness between lots, or documentation that arrived after the container shipped. Both are specification problems, and both are preventable.

Specification
| Product | Spark Plug |
|---|---|
| Vehicle application | Mercedes-Benz G-Class |
| Material / finish | Ceramic Composite |
| Typical use | Motocross |
| MOQ | 500 pieces per specification |
| Sampling | 14 working days, 5 days per revision |
| Bulk lead time | 20-55 days after approval |
| Compliance | SAE J431 |
| Packing | 50 pieces per inner box, 500 per carton |
Material options
- Cast Iron — the cost-effective default for volume programmes
- Stainless Steel — specified where the part sits close to a heat source
- Silicone — specified where the part sits close to a heat source
- Natural Rubber — used when the finish has to hold a coating
- Semi-Metallic Compound — chosen where wear resistance comes first

Processes available
- laser cutting
- sintering
- cold forging
- gravity casting
- injection moulding
- assembly line testing
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 motocross. Related applications include weekend riding, rural transport, airport ground fleets, off-road trails, 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 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.
Do you handle mixed containers?
Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 500 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 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.
Send the part number, the annual volume and the target market, and we will come back with a specification and a sampling plan.







