Subaru WRX STI Alternator

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    Duralast Alternator 15718 for Subaru WRX STI
    • Part # 15718
    • SKU # 88010
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      Valucraft Alternator 15718VC for Subaru WRX STI
      • Part # 15718VC
      • SKU # 218650

      About


      Subaru WRX STI Alternator

      The alternator on a Subaru WRX STI is responsible for recharging the battery as well as powering electrical systems inside your car. It uses the principles of electromagnetism to convert the engine's rotation into electrical energy. If the alternator isn't working as it should, you could be left stranded. The repair is usually straightforward, and new Subaru WRX STI alternators are available at AutoZone from popular brands like Duralast Gold and Bosch.

      Signs of a Bad Alternator

      In general, an alternator can be expected to last in the vicinity of seven years or so before it needs to be changed. When the alternator stops working normally, symptoms will show up such as slow engine cranking, flickering lights, a dead battery, smoke from under the hood, squealing or whining noises, or a check engine light related to low voltage. If you have one of these symptoms, you might require a new alternator for your car.

      Replacing a Subaru WRX STI Alternator

      It's possible to change the alternator in an hour or so with common tools around your garage. After disconnecting negative battery cable, take off the serpentine belt and disconnect the wiring to the alternator itself. Undo the fasteners and install the new alternator in the same orientation as the old one. Connect the electrical and install the belt to wrap up.

      At AutoZone, shop for Subaru WRX STI alternators and charging system parts not fit perfectly when you filter by year, make, model, and engine size. On eligible orders, choose Free Next-Day Delivery or Same-Day In-Store or Curbside Pickup to get your repairs done in a timely fashion.