2D1721579 Volkswagen CUP

This cup is basically a little housing, a socket if you will, for something else – usually a bulb. It holds the bulb securely in place, and directs the light where it needs to go. Sometimes it's for a marker light, sometimes a smaller signal light, even interior lights. It’s a pretty simple part, but vital for the light to function correctly. Think of it as a little supporting actor. The bulb is the star, obviously, but the cup keeps everything aligned and stable. It’s usually part of a larger assembly, like a tail light or side marker. It helps keep moisture out too, offering a bit of a seal. It’s not something that makes the car go, but it’s part of what keeps you safe and visible on the road. Well, if this cup is cracked or damaged, the bulb won’t sit right. That means the light will be dim, flickering, or might not work at all. You’ll notice if a light is out pretty quickly. Beyond that, a broken cup leaves the bulb exposed to the elements, leading to corrosion and a much bigger problem down the road. It's a cheap part to replace, honestly, and a lot easier than dealing with a completely failed light assembly. You can find them pretty easily online – Fixparts Online has a good selection of these, for example. It's one of those things that keeps everything working as it should, and prevents a small issue from becoming a big, unsafe one. Perfect fit for your vehicle: Cup (MPN 2D1721579) comes with a 12-month warranty!

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• Genuine Volkswagen parts are designed specifically for your vehicle, ensuring a perfect fit and optimal performance. • Using Volkswagen parts helps maintain your vehicle's original quality, safety features, and value. • Our parts are rigorously tested to meet Volkswagen’s high standards, giving you peace of mind and long-lasting reliability. • You'll find a wide range of parts and accessories, backed by Volkswagen's warranty and expert support. Performance you can rely on – Volkswagen parts from FixParts Online.