A0139979447 Mercedes-Benz Trucks Seal Ring

This little ring’s job is pretty straightforward. It creates a tight seal between the wheel hub and the surrounding components, mainly keeping grease in and dirt, water, and debris out. Think of it like a gasket, but specifically designed for this rotating part. It prevents contamination from damaging the bearings inside the hub. It sits right where the wheel hub assembly connects to the knuckle, or the steering part. It’s a critical part of the wheel bearing system. When you turn the wheel, or even just drive straight, everything spins. The seal ring’s job is to keep that spinning action smooth and protected. It helps maintain the integrity of the whole system. It’s really important because if this seal fails, everything goes downhill fast. The grease inside the hub is what lubricates the bearings, allowing them to spin freely. Without grease, the bearings will start to wear out, causing noise – you’ll notice if you start hearing a grinding or humming sound when you drive, especially at higher speeds. Eventually, this wear can lead to a failing wheel bearing, which is a safety issue. Replacing this seal ring when you’re doing other work on the hub, like replacing the bearing itself, is a smart preventative measure. You can often find them on sites like Fixparts Online. It's a relatively inexpensive part that can save you a lot of headaches – and money – down the road. Smart investment: Seal Ring (MPN A0139979447) comes with a 12-month warranty!

Why Choose Mercedes-Benz Trucks?

• Keep your truck running its best with parts made specifically for Mercedes-Benz. They fit right and work like they should. • Genuine Mercedes-Benz parts are built to last, saving you money on repairs down the road. • We have a wide selection of parts available, so you can get what you need quickly. • Trust the quality and reliability that Mercedes-Benz is known for – protect your investment with genuine parts. FixParts Online – Your Trusted Source for Quality Mercedes-Benz Trucks Auto Parts.