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. Top-rated performance: Suppressed Spark Plug (MPN 0242215502) has a 12-month warranty!

About Bosch

Bosch is a global leader in automotive technology from Germany, celebrated for its innovative products and high-quality components. Based in Germany, Bosch drives advancements in vehicle safety and efficiency worldwide.

Why Choose Bosch?

• Bosch parts are known for lasting a long time, so you won't have to replace them often. • They're made with high-quality materials and tested thoroughly, meaning they perform reliably. • Bosch offers a wide range of parts, so you're likely to find what you need for almost any vehicle. • Mechanics and drivers around the world trust Bosch – it’s a name you can depend on. Bosch delivers excellence, FixParts Online delivers to your door.