This 150amp alternator will run all your accessories without killing your charging system. It is a direct bolt on, and requires no modifications.
The alternator in your vehicle keeps the battery at full charge when your engine is running. Because all of your electronic systems run off of this small piece, it's important that it is operational. If your lights are dim while driving or your battery dies within minutes of starting your car, it's time for a new alternator.
This alternator from Bosch is exactly what you need to get your starting and charging system functioning properly. With the proper amperage, mounting locations, and wiring connections, this brand new unit will keep your battery charged and your electronics and ignition system in good shape. The perfect alternative to expensive dealership parts.
Want to check to see if your alternator is operation properly? Use a multimeter to test the battery voltage while running. The battery should be charging at about 14.5 volts. If you are watching voltage slowly drop, or if it is not charging at that voltage, it's time for a replacement. Supported by a 2 Year Warranty
This Product Is Covered By Our Lifetime Replacement Program
Products protected by our Lifetime Replacement Program are covered for as long as you own the product, no need to worry about an expiration date. Purchase your products and enjoy some worry-free motoring, knowing we've got you covered.
If you have any questions, would like to learn more or are ready to place a replacement claim, click here!
Fits These Cars
MAKE
MODEL
SUBMODEL
ENGINE
Special Fitment Notes
BMW
E38
740i
M62 4.4L
For vehicles with liquid cooled alternator and production date from 09/1998
BMW
E38
740iL
M62 4.4L
For vehicles with liquid cooled alternator and production date from 09/1998
BMW
E39
540i
M62 4.4L
For vehicles with liquid cooled alternator and production date from 09/1998
BMW
E53
X5
M62 4.4L
Use vehicle selector to confirm fitment
BMW
E53
X5
M62 4.6L
Use vehicle selector to confirm fitment
*The above product applications have been written by Turner Motorsport. All
warranties, product application, fitment, and performance are the responsibility of Turner Motorsport.
For additional information see the terms of use.