These little guys are pretty simple. They’re basically shims, or thin plates, that go between the brake pad and the caliper piston, or sometimes between the pad and the caliper bracket. They can also be used to adjust the position of the caliper. They aren't really about doing something, more about allowing things to work correctly. Think of it like this: when you hit the brakes, a lot of force comes into play. That force needs to be distributed evenly across the brake pad surface. The spacer helps with that, making sure the pad sits properly and doesn't bind or get unevenly worn. It also helps prevent vibrations and noise. Sometimes, especially after a brake job, the caliper might not be perfectly aligned, and a spacer helps fine – tune things. It kind of acts like a shield, protecting other components from stress and wear. You’ll notice if one of these is missing or damaged – usually it’s a squealing or grinding sound when you brake, or maybe uneven pad wear. It's not something that will cause an immediate, catastrophic failure, but ignoring it will definitely shorten the lifespan of your pads and potentially damage the caliper itself, which is a much more expensive fix. They’re inexpensive parts, really, and it’s good preventative maintenance to replace them whenever you do your brake pads. We often suggest checking these during a brake service, and you can find them easily enough at places like Fixparts Online, or we can certainly get one for you here. Mercedes-Benz Trucks stands by its products: Spacer (MPN A3854210352) includes a 12-month warranty!

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• Keep your truck running its best with parts made specifically for it. That means a better fit and reliable performance. • Genuine Mercedes-Benz parts are built to last, helping you avoid costly repairs and downtime on the road. • We offer a wide range of parts, from routine maintenance items to complex engine components, all readily available. • Trust the quality and expertise of Mercedes-Benz – we stand behind every part we sell, ensuring peace of mind for you and your business. Performance you can rely on – Mercedes-Benz Trucks parts from FixParts Online.