They’re basically retaining rings. Think of them like a really simple, strong clamp. They fit into a groove on a shaft or in a housing and hold something in place – often a piston pin, a valve stem, or other moving parts inside the engine. They keep things from sliding around where they shouldn't. They come in two main types – internal and external, depending on whether they fit inside a hole or around the outside of something. Inside the engine, they’re everywhere. They're used on things like the piston pins which connect the piston to the connecting rod. They also hold valves in place. Basically, anywhere you have a shaft or rod moving inside something else, you’ll likely find a circlip keeping it all lined up and secure. It's a seemingly small part that contributes to major mechanical function. If a circlip fails, things can quickly go wrong. If one lets go on a piston pin, you’re talking about potentially catastrophic engine damage. You’ll notice if one breaks – usually through a knocking sound, loss of power, or engine failure. They're designed to be incredibly strong for their size, but they do wear out, or can be damaged during engine work. Luckily, they're cheap to replace, and it's much better to address it proactively than wait for a bigger problem. You can find all sorts of sizes and types at places like Fixparts Online, so make sure you get the right one for the job. It's a small part with a big responsibility. We’re here to help: Circlip (MPN 059107441) includes a 12-month warranty!

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• Get parts made specifically for your VW, ensuring a perfect fit and reliable performance. • Volkswagen parts are quality-tested to meet high standards, so you can drive with confidence. • Using genuine VW parts helps maintain your vehicle’s value. • We have a wide selection of parts, from everyday maintenance items to more complex components. Volkswagen delivers excellence, FixParts Online delivers to your door.