This little ring, it doesn’t do a whole lot on its own, but it’s critical for keeping fluids where they’re supposed to be. Specifically, it creates a tight seal between fuel system components – things like fuel injectors, the fuel rail, or even the fuel pump itself. It’s really about preventing leaks. It’s usually made of a rubber or a synthetic material designed to withstand fuel and temperature changes. Think of it as a barrier, preventing fuel from escaping where it shouldn’t. Fuel systems are, naturally, under pressure, and these rings fill in tiny gaps and imperfections in the metal parts to maintain that seal. They’re used anywhere two fuel system pieces connect. It’s a small part, but it plays a big role in keeping everything running smoothly. Fuel leaks are obviously a big deal. They’re a fire hazard first and foremost, and they can also cause a loss of power, rough running, or even damage to other engine components. You’ll notice if you have a significant leak—you'll smell fuel, maybe see it dripping. But sometimes it's a slow seep, and that’s where these rings really earn their keep. Replacing a worn or cracked seal ring is a lot cheaper – and safer – than dealing with the consequences of a fuel leak. You can often find a good selection of them at places like Fixparts Online, they usually have diagrams to help you find the right one for your vehicle. It’s a preventative thing, really. They don't last forever, and replacing them during a fuel system service is smart. Highly recommended: Seal Ring (MPN 9431610156) comes with a 12-month warranty!

About Bosch

Robert Bosch GmbH is a global leader in automotive technology, offering high-quality parts and systems that enhance vehicle efficiency, safety, and reliability.

Why Choose Bosch?

• Bosch parts are known for being reliable and lasting a long time, which can save you money on repairs in the future. • They’re a leading supplier to car manufacturers, so you’re getting the same quality parts used in many new vehicles. • Bosch invests a lot in research and development, meaning their parts often have the latest technology for better performance. • You can find Bosch parts for a wide range of vehicles, from older models to the newest cars and trucks. Bosch – trusted quality, available at FixParts Online!