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30% Off Online Orders of Select Hard Parts. Enter Promo Code MMJ30 in Cart.

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Receive Up To 30% Off Your Online Purchase Of Select Parts And Accessories
Use promotional code MMJ30 at checkout to receive 30% 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, Tire Repair Accessories, Mufflers, Grease/Oil, Additive Chemicals, P/S Pumps, Cooling Product, Timing Belts, Specialty Tools, Radiator Hose, Motor Mounts, Mirrors, Lug Nuts, Sealants/Adhesives, Fuel Filters, P/S Hoses, Gas Cans, Oil Change Accessories, Help, Wiper Motors, Loaner Tools, Air Compressors, Horns, Books, Distributors, Sun Control and Exhaust Adapters.

Use promotional code MMJ15 at checkout to receive 15% off the following categories: Test Equipment, Power Tools, Emergency Supplies, Electronics and Stereo & Accessories (MAP pricing Exclusions).

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: WeatherTech, 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 11/22/17.

Receive 10% Off Wagner branded brake parts with your online purchase. Use promotional code: WAGNER10.

Receive 20% Off Select Champion branded products with your online purchase. Use promotional code: CHAMP20.

Receive 10% Off Select FelPro branded products with your online purchase. Use promotional code: FELPRO10.

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

As the #1 brand when it comes to vehicle system restoration and repair, Bar’s Leaks is committed to both the health of your car as well as the science behind its products. Based in Michigan, Bar’s Leaks also specializes in improving system performance and extending the life of high-mileage vehicles by ensuring system integrity, lubricating critical engine components, improving mechanical function and more. Read more +

Bar's Leaks gets you back on the road. When a leak occurs within your critical engine components, don't replace - repair. Bar’s Leaks head gasket repair technology was the industry's first premium solution used to chemically repair blown head gaskets. Today, Bar’s Leaks is the gold standard in advanced chemical head gasket repair solutions.

If you can open a hood and open a bottle, Bar's Leaks is within your "repair range" - you don't have to be an expert. Our products have been making "three minute mechanics" out of people for over 65 years, for all types of vehicles, all types of leaks. Bar's Leaks engineers specially-formulated products that seal the problem from within, so you can get back to your life.

Bar's Leaks - The fastest, safest way to get the show back on the road. Guaranteed.

Bar’s Leaks has deep history of helping generation after generation take care of their cars themselves. That’s the kind of knowledge you want to pass on. Explore our wide variety of trusted Bar’s Leaks solutions at Pep Boys.

Bar’s Leaks
Radiator Stop Leak

  • Stop minor leaks before they become major with Bar’s Leaks Radiator Stop Leak Concentrate’s specially designed formula
  • Seals leaks in radiators, gaskets, heater cores and freeze plugs and works with all types and colors of antifreeze coolant and/or water
  • Ideal for those common small leaks in your car’s cooling system
Bar’s Leaks Radiator Stop Link seals leaks in radiators, gaskets, heater cores and freeze plugs. It works with all types and colors of antifreeze coolant and/or water

Bar’s Leaks
Head Gasket Fix

  • The easiest solution to stopping head gasket coolant leaks, Head Gasket Fix is your last stop before expensive repairs
  • Works using the extreme heat inside the combustion chamber to permanently harden the material, making it stronger than the head gasket itself
  • “Pop and pour” formula is engineered for easy installation, no matter your mechanical expertise
Bar’s Leaks Head Gasket Fix is your last stop before expensive head gasket repairs