Denso Alternator; 170 Amp | 12317605478

BMW X3, 328i, 528i, Z4, 328i xDrive, 320i, 528i xDrive, 320i xDrive, 428i, 228i & more
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P/N: 12317605478 Denso OEM FREE SHIPPING
Description:
170 Amp
Cross References:
  • DAN1126

The alternator on your BMW is an electrical generator used to charge your vehicle’s battery and power your vehicle’s electrical components. As the alternator spins, an electromagnetic coil rotor spins creating an electromagnetic field and allowing the stator to generate an alternating electrical current. The alternating current is converted by a rectifier regulator into a direct current that can be used by your vehicle.

A faulty alternator will either not produce any electricity or will not produce enough electricity to power your BMW or charge the battery.

Signs of a Faulty BMW Alternator
  • A dead battery after driving
  • Surging lights or other electrical systems surging from a lack of electricity
  • A whining from the alternator when the engine is running
  • Illumination of the battery warning light in conjunction with the brake warning light to indicate the alternator is not producing electricity

Replacing a Failed BMW Alternator
Replacement of your BMW alternator should only occur if the alternator has failed or is damaged in any way.

The location of the alternator will vary from vehicle to vehicle, but it is almost always mounted near the front of the ngine and driven by a serpentine belt attached to the engine crankshaft. Because of the varying locations, replacement of the alternator can take anywhere from 30 minutes on vehicles with the alternator mounted openly to several hours for alternators mounted deep inside the engine bay.

View more BMW Alternators.

Denso is a worldwide leader in the manufacture of advanced automotive technology, systems, and components. They are OEM (original equipment manufacturer) on numerous powertrain, climate control, electronics, safety, and telematics for many different car and truck manufacturers around the world. Its aftermarket division of filters, spark plugs, and wipers are also built to OE specifications to ensure proper fitment and function.
Left = Driver side and Right = Passenger side.
All parts are priced individually unless identified as a set or kit. "Per car" notes identify how many of a given part your car has and "Left/Right or Front/Rear" notes means the part fits the left or right side of the car. These parts are still sold individually and you'll need to select the appropriate quantity if you plan to replace more than one of this item.

Frequently Viewed Together

We found 2 additional part(s) that are frequently viewed together.

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What This Denso Alternator Fits?

Application information below is for reference only and should not be used to determine the exact vehicle fitment. Please use the "Make Sure It Fits" vehicle selection box above to determine the exact fitment and review any application notes. If you need any help determining if this part works with your vehicle, please don't hesitate to contact us.

BMW
14-16 - 228i
15-16 - 228i xDrive
14-18 - 320i
14-18 - 320i xDrive
14-16 - 328i
12-13 - 328i E9X, F3X
Body Type: Sedan
14-16 - 328i GT xDrive
14-16 - 328i xDrive
13-13 - 328i xDrive E9X, F3X
Body Type: Sedan
14-16 - 428i
15-16 - 428i Gran Coupe
14-16 - 428i xDrive
15-16 - 428i xDrive Gran Coupe
14-16 - 528i
14-16 - 528i xDrive
13-17 - X3 xDrive28i
12-16 - Z4 sDrive28i