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25% Off Online Orders of Select Parts and Accessories. Enter Promo Code FOUND25 in Cart

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25% Off All Online Orders of Select Parts and Accessories
Receive 25% Off Your Online Purchase. Use promotional code FOUND25 at checkout to receive discount. Not valid in combination with any other discounts or promotions. Not valid on gift cards, special orders, installed merchandise, commercial or fleet purchases. Excludes the following categories: Tires, Wheels, Batteries, Powerstop Brake Kits, Oil, Antifreeze, Refrigerant, Truck Boxes, Vent Visors, Bug Shields and BRANDS: Razor, Traxxas, Superchips, Hypertech, Edge, Bully Dog, Diablo, Edelbrock, Holley, NOS, Proform, Specialty Auto, Thule, Autometer, Accel, K&N, Kenwood, Pioneer, Sony, JVC, MSD and BBK Performance. Valid online until 2:59 am EST on 2/27/17. Online orders scheduled for in-store pick up must be completed by closing on 2/26/17 for discount to apply.

Free Shipping on Orders Over $50 or in-store pickup

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  • Part #: 15576|
  • SKU: 8580977

Available today after 1 p.m.

    • All units are completely disassembled and reclaimed parts are cleaned, inspected and thoroughly tested
    • All wear parts are replaced in every unit, regardless of condition
PayPal available for online purchases. Major credit cards accepted online and in store. Pay online, in-store or take advantage of our Pep Boys credit card. Learn more and see additional details in cart.

ProStart Remanufactured Alternator

ProStart remanufactured alternators represent a total commitment to quality. Each unit is built to last using components and techniques that make them as good as or better than the original equipment part. ProStart premium quality remanufactured alternators carry a limited lifetime warranty.
  • All units are completely disassembled and reclaimed parts are cleaned, inspected and thoroughly tested
  • All wear parts are replaced in every unit, regardless of condition
  • Each ProStart remanufactured alternator goes through three stages of testing; before, during, and at the end of the remanufacturing process
  • Each alternator receives all new brushes and bearings, pressure-fit high capacity diodes and precision polished slip-rings in addition to a thorough qualifying of the housing, stator and all reclaimed components
  • Every ProStart alternator is performance tested and required to pass OE specifications before leaving the factory
  • Our rigorous performance testing ensures your alternator will provide long-lasting, premium performance under all operating conditions
  • Auto part is backed with a limited lifetime warranty
  • Your alternator plays a critical role in your car, keeping your car battery charged and your electrical systems working correctly
  • Check out our wide assortment of car batteries, starters, and alternators and related parts
  • The Pep Boys Say: "Do the job once and do it right with the confidence that can only come from genuine ProStart alternators."

Regulator Plug Clocking Position:
12:00 O'clock
7 pounds
Fan Location:
Amperage Rating:
55 A
Voltage Regulation Type:
Pulley Type:
3 groove serpentine pulley
Vehicle System Voltage:


Rated 4.3 out of 5 by 255 reviewers.
Rated 5 out of 5 by it works great it works great August 15, 2014
Rated 5 out of 5 by So far so good I have had this alternator installed for the last 2.5 weeks on my 07 Tundra and no problems...despite the other reviews that i read. Was delivered quick. Bit of a headache to install on the Tundra, due to the build of the truck, but with time and patience it happened. August 11, 2014
Rated 5 out of 5 by It was the part I needed at a great price The part is doing it's job. July 14, 2014
Rated 1 out of 5 by Build quality is not very good Needed a replacement unit for a BMW X5. Dealer unit was $1300. So after researching, I bought this unit because it was a Bosch unit, which is an OEM supplier for BMW; along with Valero. I figured with a lifetime warranty and a Bosch rebuild, the unit should be just fine. Now since this is a water cooled unit, replacing this unit is more labor intensive than an air cooled model. So to my surprise after replacing this unit; at first start the voltage wouldn't go past 10v. Check everything, ends up being the alternator. Take it back out and get a replacement. Stick that in, all is good in the world. 11 months later, battery light begins to flicker. After about a week, the unit gives out again. Again, I test everything and its the alternator. So I pull it out and take it back. But this time I am told they won't exchange it because they need to test it. The only way to test it was for it to be installed. So after some complaining, I get a new unit. Coming up to the 8 month mark, unit is dying again. Battery light is flickering and check the voltage, it is only producing ~11.9v - 12.4v, running. So the unit is not doing its job. This will not be the 3rd unit within 2 years. I am going to get it replaced under warranty again or try and get a refund for this unit. Only reason I bought this unit than a different one offered by other online competitors was because I needed a new alternator ASAP and didn't have time to wait. Also, the local store is only 15 minutes away from me. So if your alternator is on its way out, go elsewhere for an alternator. You only want to do the job once. Between the constant draining of coolant and replacing the coolant @ $25/gal and down time, it is actually more cost effective to spend the $1300 one time and just be done with it. Or if you have the time, send your OE unit out to the rebuilder and have them do it. July 6, 2014
Rated 1 out of 5 by Went through 3, very poor quality. The first one I purchased made an extremely high grinding noise. The alternator didn't spin freely by hand, returned it for another unit. The next unit spun freely by hand but after installing it, still made a lot of noise. Returned it for another unit. Third unit was fine for 10k miles but now makes a ton of noise. The OE unit lasted 100k+ miles, I'll spend the extra cash and purchase that next. June 7, 2014
Rated 4 out of 5 by working ok It's been four weeks and alternator is working ok, it's charging in the range it should be (14.2 volts). Only thing I wish this alternator would have came with is a replacement diode that's for keeping static off the AM radio stations. So far I've bought two alternators and one starter from Pep Boys and they're all working ok. April 8, 2014
Rated 4 out of 5 by This product is smooth Ordered it with no problems. Took it back to get the pulley swapped did it in 5 mins. Will continue to order from pep boys. March 15, 2014
Rated 4 out of 5 by Good refurb part at a great price A professionally refurbished alternator at a great price. The wrong one came on the first try, but the staff at my local Pep Boys got right on it, and took extra steps to ensure the right one came at the next available delivery. March 14, 2014
Rated 5 out of 5 by great price info great came in when said it would look good and put it in works great so far March 11, 2014
Rated 5 out of 5 by Installed 4 weeks ago - works and installs perfectly! Seems to be a good alternator, been using for 4 weeks now and no issues. Installation was easy, it was an exact fit for my 1999 Jeep Cherokee Classic with the straight 6. March 7, 2014
Rated 5 out of 5 by Ordered it on line and picked it up the next day Right Part, Works fine February 28, 2014
Rated 5 out of 5 by great price ,easy to install best deal i found , works great , saved my butt thanks February 27, 2014
Rated 1 out of 5 by Junk don waste you money a piece of junk don waste your time or money I had two put on and they both were defective February 22, 2014
Rated 5 out of 5 by part was excellent. Price was the best of anyone Very Satisfied. Part was excellent and Price was the lowest of anyone by far February 12, 2014
Rated 5 out of 5 by perfect fit for 2005 MB C240 This unit was a perfect fit for 2005 MB C240 and works just like MB parts no issue at all. February 10, 2014
Rated 5 out of 5 by Alternator I ordered it online to save money since I had time to do the repair myself. It arrived 3 days faster than I thought it would and installing it was a snap. I started the engine and it seemed to work perfectly. February 5, 2014
Rated 4 out of 5 by Quality Product so far I've had this alternator in my car for about a month now, and it hasn't had a single issue. My only complaint is that the outer casing was pretty dirty out of the box, I wish they would have done a little more during the remanufacturing process to clean it up, but other than that I'm highly satisfied. The lifetime warranty is a huge selling point. February 5, 2014
Rated 4 out of 5 by Works as expected This product fit my 1997 Honda Civic DX and performs as expected. February 3, 2014
Rated 5 out of 5 by This product looks just like the factory one it replaced. Perfect replacement part. January 27, 2014
Rated 5 out of 5 by Product fit exactly Installed and operated as expected once pully was changed out by Pep Boys Manager excellent service. Switched out pully from old Alternator to new in store. This saved me from driving 20 miles to other store just for pully and other alternator. January 21, 2014
Rated 3 out of 5 by GOOD PRODUCT, BUT DEFECTIVE I bought this alternator to replace my original one. Original one lasted for 214k miles. The new product was a Bosch Re-Man. I put it on and started the car. Alternator made loud whine. I thought to myself, this can't be good. But I decided to let the car idle for a bit. The whining sound began to dissipate. So I thought, ok maybe it just needed to break-in. Drove the car for a couple weeks. Started to hear squeaking noises. I checked all the pulleys. Also checked the alternator pulley, as I spun it, I can hear a slight squeak in it. Took it back to Pep Boys and they were able to replace with a new one. Customer Service was great. January 13, 2014
Rated 5 out of 5 by Pretty good reman alternator Easy to install, came with good instructions. Also replaced the external regulator which is important. New reman alternator is charging battery fine now. I have bought Pep Boys brand ProStart alternator and starter now, both working fine. December 18, 2013
Rated 5 out of 5 by So far so good My car is back on the road, I haven't had any problems. I can't complain. December 15, 2013
Rated 3 out of 5 by Alternator squeek I had to machine down the inside, front of the pulley. The serpentine belt rolled up the side and started sqeeking. 1987 Grand National 3.8L Turbo December 2, 2013
Rated 5 out of 5 by Exact Fit and Function Alternator on my van had bad alternator decoupler pulley. Replacing the entire alternator was a better option. Purchased alternator works flawlessly and was a straightforward replacement. November 30, 2013
Rated 5 out of 5 by Work great. Price is the least expensive. November 17, 2013
Rated 5 out of 5 by Happy, happy, happy! The dealership wanted $1200 to replace the alternator in my wife's DTS. Every other store or website wanted at least $250 plus core charge, shipping etc. I ordered this alternator with free shipping for $165! It required some effort to replace but I saved myself $1000. No problems with warning lights after installation. Quality remanufactured part that fits perfectly. Thank you Pep Boys, you earned a customer for life! November 6, 2013
Rated 4 out of 5 by priced right This alt. hasn't let me down yet. So far so good. November 6, 2013
Rated 5 out of 5 by Couldn't have been simpler! I found this alternator online, ordered it, and it was waiting for me when I walked in. I was lucky enough to be able to bring in the old alternator, so there wasn't even a core charge. Installation was a snap. All necessary hardware was included. And it has been working like a champ! November 3, 2013
Rated 5 out of 5 by Working great so far! First starter on 97 Grand Jeep Chero! Working great so far hope the product continues to perform flawlessly ;) October 16, 2013
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