- In conclusion, the price of car spark plugs can vary widely depending on the type of plug, the quality of the material used, and the brand. While conventional spark plugs are relatively inexpensive, performance spark plugs and those made from platinum or iridium can be much more expensive. When choosing a spark plug, it's important to consider your vehicle's needs and budget, as well as the quality and reputation of the brand.
- Lastly, the 'A' at the end denotes the resistor type, which helps suppress radio frequency interference, improving overall electrical system stability. This feature is particularly beneficial in today's vehicles with advanced electronic systems that can be sensitive to electrical interference.
ERIKS type GV (type C according to DIN) is equivalent to type M, but is a heavy-duty version with a double metal casing. This can be a useful solution with larger diameters in more demanding applications. There is also a version of this type with a dust lip; the GVST (type CS according to DIN).
- Stainless Steel: Ideal for water, chemicals, or corrosion resistance applications. Stainless steel cases are also suitable for many FDA applications.
A rubber or PTFE sealing lip


Car spark plugs are integral to the efficient operation of the engine, contributing significantly to the vehicle's overall performance and fuel economy. These plugs are designed to withstand high temperatures and pressures within the combustion chamber, providing reliable ignition and combustion. Properly functioning car spark plugs are essential for maintaining smooth engine operation, fuel efficiency, and emissions control, making them a critical component in the overall reliability and longevity of the vehicle.
If you follow the above instructions, the oil seals should work properly. Also watch the video below for an example of the installation process.