Look at your Subaru Alternator or your Subaru Outback Alternator. Then look at any replacement alternator. They all look pretty much the same. But looks can be deceiving - very, very deceiving. This is one of those situations where the old saying about judging a book by its cover could not be any more true. It is what is inside the castings and under the pulley that really matters. And our replacements for the Subaru Alternator or Subaru Outback Alternator that is now under your vehicle's hood is built to OEM quality and has engineering and manufacturing built-in that translates to long-life as well as consistent and reliable current being generated for your Subaru's electrical and charging systems. Remember that fluctuating current can be the source of many automotive problems including poor starting and shortened battery life. In addition, extreme voltage and amperage variations can actually damage and, in some cases wreck, sensitive electronic engine and entertainment components in your vehicle. Also, an alternator that becomes difficult to turn ... whether from low quality, worn or misaligned bearings, can lead to premature wear and even failure of expensive belts which, in turn, can cause damage to other components driven by the belt. All of this is why it pays to buy only the highest quality parts when it is time to replace your Subaru Alternator or Subaru Outback Alternator.