The Mercedes-Benz S550 Alternator is a small power generator for the sedan, which transforms engine rotation into stable electricity that ensures the battery is ready, each display is bright, and all security systems are in an alert state. The unit is constructed of two powerful cast aluminum shells that house a pulley-driven rotor in which a sweeping magnetic field encounters a rugged stator to induce current, which is subsequently rectified by an internal rectifier converting it into battery-friendly direct charge that eliminates the effect of voltage dips during hard acceleration or abrupt part use. Its dependable, rock-solid performance is praised by its owners since the bearings, cooling fan, and heat-sinks combine to combat wear and surplus heat, allowing it to continue to deliver mile after mile. The Alternator is fitted to both the W221 and W222 generations of the S550, and its clever design also communicates with the Powertrain Control Module on later vehicles, allowing the computer to optimize field current to provide maximum efficiency without wasting fuel. Its constant power supply provides the electronic steering assist, adaptive cruise, and the notorious PRE-SAFE collision technology with the ability to respond to necessity within a couple of seconds, which contributes to a noise-cancelling layer of safety to each ride. Mercedes-Benz electronics can remain within their optimal operating range despite the activation of headlights, AIRMATIC pumps, and seat massagers at the same time, by utilizing this consistent output. In contrast to smaller units, this Mercedes-Benz part retains the traditional rotor coils that adjust the range of output for the extravagant cabin, which requires the seats to be heated, two infotainment displays, and high-quality audio. The dimensionally compatible mounting locations make it easier to change it between model years, as fans can now replace it with a new Alternator without any special brackets. Air cooling also helps durability by pulling in air from front vents, eliminating additional weight, but temperature under heavy loads is still controlled. Combining these qualities strengthens the Mercedes-Benz image of trouble-free luxury, as shown by how a single electrified component can maintain the brand's performance requirements and safeguard the occupants and electronic components in every S550 drive.
Every OEM part goes through strict quality checks. The checks keep you safe and make Alternator tough. They keep performance the same as your original parts. If your Mercedes-Benz S550 needs OEM parts, visit our catalog. You will find extensive genuine Mercedes-Benz S550 parts. We offer a wide selection at competitive prices, and with clear fit details and simple guidance, choosing what you need is effortless. Each of our parts has a manufacturer's warranty. You will like our simple return policy. We pack and ship fast, and you get your order quickly. Shopping here feels easy and enjoyable.