The alternator is a necessary part of your engine, because without it your battery would quickly run flat, leaving you on the side of the road.

If your alternator has failed, it needs to be replaced in order to keep your engine running, but unfortunately, not all replacement alternators come with a new pulley.

That is where this comes in. This is a brand new replacement alternator pulley for your Mercedes-Benz, so that even if your new alternator did not come with a pulley, there is nothing to worry about.

If you are replacing your alternator or just your alternator pulley, now would be a great time to replace any other components in the accessory belt drive system that are starting to show their age, such as the belt tensioner, idler pulleys and the belt itself.