Spark Plug for Volkswagen Golf: EPDM Rubber
This spark plug for the Volkswagen Golf is specified around epdm rubber, 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 premature wear on the first batch, or premature wear on the first batch. Both are specification problems, and both are preventable.

Specification
| Product | Spark Plug |
|---|---|
| Vehicle application | Volkswagen Golf |
| Material / finish | EPDM Rubber |
| Typical use | Airport Ground Fleets |
| MOQ | 500 pieces per specification |
| Sampling | 7 working days, 3 days per revision |
| Bulk lead time | 15-55 days after approval |
| Compliance | SAE J431 |
| Packing | 20 pieces per inner box, 500 per carton |
Material options
- Titanium Alloy — selected when the part is exposed to weather and road salt
- Carbon Fibre Composite — selected when the part is exposed to weather and road salt
- Carbon Steel — preferred when weight matters more than rigidity
- Chromed Steel — the cost-effective default for volume programmes
- Cast Iron — used when the finish has to hold a coating

Processes available
- precision stamping
- electroplating
- gravity casting
- heat treatment
- powder coating
- robot welding
Fitment notes
Check whether the mounting points on your market version match the catalogue drawing — regional variants are the usual cause of a wrong first order.
Where it is used
The specification above is the one most often ordered for airport ground fleets. Related applications include off-road trails, food delivery, long-distance touring, motocross, passenger transport.
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
How long does sampling take?
Samples leave the factory in 7 working days, and each revision round adds about 3 days once you have seen the first piece.
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.
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.
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 specification you are working to and we will confirm what we can match, what we would change and why.







