Basically, this plug does what all spark plugs do – it creates that spark inside the engine that ignites the fuel and air mixture, making the engine run. But the “suppressed” part is key. It adds a resistor inside the plug itself. This resistor cuts down on radio frequency interference, or RFI. Think of it like this, the spark is powerful, and without suppression, it can send out signals that mess with your car’s electronics – your radio, your navigation system, even some of the engine control stuff. The resistor dampens that signal. It fits right into your engine, just like a regular spark plug. But where a standard plug just focuses on making a strong spark, this one’s got that extra job of keeping the electrical noise down. It's a pretty small part, but it plays a role in making sure all your other electrical components work properly without interference. It’s designed to work with vehicles that have sensitive electronics, especially newer cars. A failing or missing suppressed spark plug can cause all sorts of weird issues. You might notice static on the radio, or your engine might misfire, giving you a rough idle or reduced power. Sometimes it’s subtle; you just can’t quite get a clear radio signal. It acts like a shield, protecting the sensitive electronics. They’re not always necessary on older cars, but for anything relatively modern, they're a good idea. You can find these pretty easily – a lot of people get them from places like Fixparts Online, but any good auto parts store will carry them. If you’re having electronic issues and you’ve checked everything else, it’s worth looking at your spark plugs to see if they’re suppressed, and if they’re in good shape. You’ll notice if one is really worn down compared to the others. We’re here to help: Suppressed Spark Plug (MPN 0242229660) includes a 12-month warranty!

About Bosch

With a heritage of innovation, Bosch provides dependable and efficient automotive components that set industry standards.

Why Choose Bosch?

• Bosch parts are known for being reliable and lasting a long time, saving you money in the long run. • They work well right out of the box, so you can get back on the road quickly and easily. • Bosch invests a lot in research and development, meaning they’re always improving their parts with the latest technology. • Whether you drive a newer car or an older one, Bosch has a wide range of parts to fit your vehicle. Performance you can rely on – Bosch parts from FixParts Online.