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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 #: 13509N|
  • SKU: 520791

4 days after 6 p.m.

    • A 100% new product, each unit is manufactured at a TS16949 certified facility to stand up to the industry's toughest automotive standard
    • Designed with qualified components that must meet specific rigorous test specifications
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ProStart Platinum New Alternator

100% new inside and out, ProStart Platinum Alternators are designed with all applicable revisions and improvements to the OE design, often making it better than the original part.
  • A 100% new product, each unit is manufactured at a TS16949 certified facility to stand up to the industry's toughest automotive standard
  • Designed with qualified components that must meet specific rigorous test specifications
  • All applicable revisions are incorporated into the new unit, often making ProStart Platinum a better choice than an OE replacement
  • Before leaving the factory, every new alternator is tested and must pass OE performance specifications
  • Attention to detail ensures consistent quality units, that result in reliable service every time
  • Each new ProStart Platinum alternator 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
  • To keep your car or truck running safely, check out our wide assortment of car batteries, starters, and alternators and related parts
  • The Pep Boys Say: "ProStart Platinum alternators have all the improvements to the original OE design built in and they are 100% new, an unbeatable combination."

Regulator Plug Clocking Position:
9:30 O'clock
10 pounds
Fan Location:
Mitsubishi / Nippondenso
Amperage Rating:
70 A
Voltage Regulation Type:
Pulley Type:
4 groove serpentine pulley
Vehicle System Voltage:


Rated 4.5 out of 5 by 44 reviewers.
Rated 5 out of 5 by Prostart platinum has great features This is very good August 18, 2016
Rated 5 out of 5 by Great price Got this when Pep Boys had their e5% off Sale. Great price seems to be a good product. I like the lifetime warranty. August 17, 2016
Rated 4 out of 5 by The product work great. The product looks new and work great. August 16, 2016
Rated 5 out of 5 by Works great, easy fit My battery was not holding a charge when the car was parked for more than a day. Thought another battery had gone bad. But then I started having some other issues and hearing a whine. Figured the alternator was going out. Got the Prostart Alternator at my local PepBoys and it fit perfectly. Took less than 10 minutes to install. New alternator works very well and looks just like the original. My problems are solved. Battery stayed charged, all car systems working perfectly... YES. July 29, 2016
Rated 1 out of 5 by poor quality It lasted 13 days, 123 miles then died. I got a replacement, went 2 miles shut off the engine, picked up a pizza, Stopped charging as soon as I started the engine. Started charging after driving about 10 blocks. Low charging rate, with lights and A/C on, dropped down to 12.5 volts, lights dimmed when stopped. Took it back, got a refund, bought an A/C Delco from a local Parts store....worked perfectly. Neither Platinum alternator was in stock and had to wait a day for each to get them from another location. Web site specs says "MFG. -DELCO". Sticker on the unit says "made in Malaysia". Stay away from these... June 7, 2016
Rated 5 out of 5 by Excellent Good cuality and price October 12, 2015
Rated 4 out of 5 by Alternator fit perfect. Works ell no problem. staff was super friendly at crystal lake store ,I commend them being so helpful. August 17, 2015
Rated 5 out of 5 by "New Alternator" This new unit replaced a re-built alternator on a used 2000 ford ranger i bought. the price was right with a pepboys coupon, and no regrets, its works great !!! June 3, 2015
Rated 5 out of 5 by In stock Pep Boys Pro Start Platinum Alternator was in stock at a great online price! Superb customer service! May 18, 2015
Rated 5 out of 5 by Fit perfectly Wanted an OEM alternator at fair price. This one fit the bill. May 10, 2015
Rated 5 out of 5 by Best Alternator for the price. I looked all over and got a better price on a new one than a rebuilt one from those other guys. May 6, 2015
Rated 5 out of 5 by awesome i buy this new for less shoping online May 2, 2015
Rated 5 out of 5 by New Alternator I installed the alternator about a week ago, and so far so good. The installation was about normal with 1hour for removal and replacement. I am hopping I can get around 140000 miles , like the last one. April 17, 2015
Rated 5 out of 5 by Prostart Alternator was perfect! Item cost much less than what I was quoted from other places. April 16, 2015
Rated 3 out of 5 by alternator The first alternator was bad but after a bunch of phone calls and emails to pep boys they finally sent me a replacement alternator without returning the defective one first because of the service charges each time the auto center did work on the vehicle. I don't know about the replacement alternator yet because I have ordered a new ignition coil and belt from you after that and will have all three installed at the same time due to service charges. Once installed I will print off the return label and send back the defective alternator. February 2, 2015
Rated 5 out of 5 by Excellent product and experience at Pep Boys Excellent product at a great discounted price. Spoke to the parts expert while comparing the old alternator gaining some very good advice. Decided to keep the old alternator to repair as a spare for later and for a bit of fun. So far so good. Hoping the new alternator will last as long as the old original Mastercraft Ford unit. January 24, 2015
Rated 4 out of 5 by Exelent Great service January 18, 2015
Rated 5 out of 5 by Excellent quality 100% recommended. It works fine on my 2000 for windstar. Good price. January 18, 2015
Rated 4 out of 5 by Upgrade from oe After buying and installing I noticed this is a slight upgrade from oe 70 amp (97 4Runner) to 80 amp which started with 99 4runners. January 1, 2015
Rated 5 out of 5 by great product The best price on a new altenator. Excellent service at the parts counter. December 20, 2014
Rated 5 out of 5 by alternator Excellent price, service ,and shipping December 3, 2014
Rated 5 out of 5 by Great Buy Great part, everything I expected and at a fair price October 1, 2014
Rated 5 out of 5 by fits like a glove . Was so easy to install, my son did a great job installing it,my car runs better now. August 22, 2014
Rated 5 out of 5 by Awesome better than original Easy to install and seems very well built July 13, 2014
Rated 5 out of 5 by Its an altternater Easy to install March 14, 2014
Rated 4 out of 5 by good price - good service price, especially with discount coupon was very competitive. the store I purchased from, could not test my old alternator and as it turns out it was still good, so I returned the new one. March 5, 2014
Rated 5 out of 5 by So far so good / easy to install The product is working 100%. Was easy to install and worked just as perscribed. Will write another in a year or so if it fails or keeps working. Life time warranty. Let's sit back use my truck every day for service. This is a real test. I have to start and run my GMC 20 times a day 6 days a week...Sooooooooo...We will see ..But, I will also write if it KEEPS WORKING AS WELL.....Hope so the las one worked in Ohio weather since 2005..YEA.>>> January 27, 2014
Rated 5 out of 5 by Fits perfectly No problems installing the alternator. Alternator arrived in box with extra packaging around the normal alternator box to protect from shipping damage. Much appreciated. December 29, 2013
Rated 5 out of 5 by Good alternator Replaced it. Initially was leery of the quality but so far (fingers crossed) after about 2 weeks car is working like a charm. A real pain to replace because of compact spacing. Check battery voltage after installation and everything seem to work as it should. Was afraid of fit but all the mating points measured per original alternator. Good general installation instructions. Good buy! Also pepboys has loaner tools so facilitate belt removal. October 28, 2013
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