Ford Focus Auxiliary Drive Belts & Serpentine Belts

Besides creating torque for the drivetrain, the engine is used to power several auxiliary systems needed for its own operation or for providing additional comfort for occupants. These systems include a water pump, alternator, power steering, air conditioner, and less spread devices like a supercharger. All of them can be powered by one or several drive belts which are set in motion by the crankshaft pulley. These mechanisms may be located quite far from each other, yet the belt needs to encircle each pulley to achieve sufficient traction and tension.

In order to make it possible, engineers add belt tensioners and idle pulleys, and as a result, the serpentine belt diagram of your Ford Focus may look quite sophisticated. Subject to serious strain, friction, and high temperature, drive belts gradually wear out. If the belt tears, it means the corresponding mechanisms just stop working, so it's better to replace an old, worn-out belt before it fails completely. Once you've noticed minor cracks, tears, or other signs of the belts' deterioration, check out our big collection of Ford Focus auxiliary drive belts to buy a quality product sourced from a reputable brand.