25% Off Online Orders of Select Hard Parts. Enter Promo Code MMJ25 in Cart.
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Receive Up To 25% Off Your Online Purchase Of Select Parts And Accessories
Use promotional code MMJ25 at checkout to receive 25% off the following categories: Select Brake Parts, Select Hi-Performance and Truck Accessories, Batteries, Paint, Splash Guards, Select Ventvisors & Bug Shields, Springs & Spacers, Water Pumps, Belts, A/C Parts, Starters, Alternators, Fuel Pumps, Radiators, Radiator Fans, Thermostats, Caps & Clamps, Clutches, Spark Plugs, Plug Wires, CV Axles, Battery Chargers & Booster Cables, OE Locks, Rack & Pinons, Window Motors, RainX Wipers, Appearance Chemicals, Floor Mats, Lift Equipment, Hand Tools, Travel Accessories, Car Covers, Seat Covers, Wheel Covers, Body Repair, Collectibles and Apparel.

Use promotional code MMJ20 at checkout to receive 20% off the following categories: Ignition, Shocks & Struts, Chassis, Jumpstarts, Air Filters, Oil Filters, Bearings & Seals, Engine Parts, Wash Accessories,. Outdoor Lifestyle, Towing, Mini Air Compressors and Tire Repair Accessories.


Receive 25% Off Wagner branded brake parts with your online purchase. Use promotional code: WAGNER25.


Receive 10% Off Select Champion, MOOG and FelPro branded products with your online purchase. Use promotional codes: CHAMP10, MOOG10 and/or FELPRO10.


Offers not valid in combination with any other discounts, promotions or items already on sale. Not valid on gift cards, special orders, installed merchandise, commercial or fleet purchases. Those products that are included in these offers will be displayed in product search results and product detail pages. Excludes the following brands: Champion, Powerstop, Razor, Traxxas, Superchips, Hypertech, Edge, Bully Dog, Diablo, Edelbrock, Holley, NOS, Proform, Specialty Auto, Autometer, Accel, K&N, Kenwood, Pioneer, Sony, Thule, Thule Karrite, JVC, Flowmaster, Hurst, B&M, MSD, Moog, Wagner, Philips and BBK Performance. Valid online until 11:59 PM EST on 10/29/17.

Alternators & Starters


Car & Truck Alternators and Starters

Your vehicle's battery supplies power to the starter. The starter solenoid and the starter spin the engine to get it started. An alternator then tops off the battery's charge and powers all of your electrical accessories while the vehicle is running. When one of these parts wears out, breaks, or malfunctions, you may find yourself stranded in your drive way or on the side of the road Get your vehicle running again with parts from Pep Boys. Many of the parts you may need are available the same day at your local store. Unsure if you need to replace your starting components? Read more about signs of a failing alternator.