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25% Off Online Orders of Select Hard Parts. Enter Promo Code MMJ30 in Cart.

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25% Off Select Parts and Accessories
Receive 25% Off Your Online or In-Store Purchase. Use promotional code MMJ25 at checkout to receive discount. 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 will be displayed in product search results and product detail pages. INCLUDES the following categories: Starters, Alternators, Fuel Pumps, Radiators, Shocks & Struts, Chassis, CV Axles, Batteries, Ignition, Window Motors, Wipers, Appearance Chemicals, Car Wash Accessories, Floor Mats, Lift Equipment, Hand Tools, Headlamps and Bulbs. Excludes the following brands: 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 and BBK Performance. Valid online until 2:59 am EST on 5/1/17.

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

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  • Part #: 20128|
  • SKU: 925932

Available today

Pay in Store Available

    • Disconnect Batteries quickly and easily
    • Stop unwanted Battery Drain
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.

Battery Doctor Battery Disconnect Knife Blade Switch for Side-Mount Terminal Batteries

Our patented Battery Doctor Knife Blade Side-Mount Terminal Disconnect Switch is easy to install and simple to use. Simply mount it on the negative Battery Post and engage the knife blade to initiate battery current and disengage the switch when you want to cut the power off and maximize the life of the battery.
  • Disconnect Batteries quickly and easily
  • Stop unwanted Battery Drain
  • Help Prevent theft, Tampering and Unauthorized Use
  • Improve Safety and Security of Stored Vehicles, RV's and Seasonal Equipment
  • Rated 250 AMPS Continuous and 5750 AMPS surge at 12 Volts
  • Provides 3/8 1 18 Bolt for receiving standard eyelet cable connector