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Receive Up To 35% Off Your Online Purchase Of Select Parts And Accessories
Use promotional code MMJ35 at checkout to receive 35% 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, Fanmats, K-Source and BBK Performance. Valid online until 11:59 PM EST on 11/26/17.

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.

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Bar's Leaks Liquid Radiator Stop Leak 555355
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  • Part #: 1196|
  • SKU: 555355

Available today

Pay in Store Available

    • Works with all types and colors of antifreeze coolant and/or water
    • Stops leaks and seals in all minor cooling system leaks

Bar's Leaks Liquid Radiator Stop Leak

Stop radiator leaks with Bar's Leaks Radiator Stop Leak Concentrate. It's specially designed to stop minor cooling system leaks and drips caused by normal cooling system wear and age.
  • Works with all types and colors of antifreeze coolant and/or water
  • Stops leaks and seals in all minor cooling system leaks
  • Seals leaks in radiators, gaskets, heater cores and freeze plugs
  • Compatible with conventional green (silicate-based) and extended life red/orange or yellow (OAT) antifreeze
  • For preventative maintenance, use once a year to guard against future leaks
  • To keep your car running smoothly, check out our wide selection of trusted Bar's Leaks repair solutions and Rislone performance enhancement products
  • The Pep Boys Say: "Bar's Leaks Radiator Stop Leak Concentrate is ideal for those common small leaks in your cooling system - and to prevent the ones that haven't happened yet."

Full Fuel System Cleaner


Bar's Leaks Liquid Radiator Stop Leak is rated 2.7 out of 5 by 6.
Rated 2 out of 5 by from I have purchased this product two times and each time I used it it did not work Twice I have that problem and the product don't work
Date published: 2016-08-27
Rated 1 out of 5 by from Did not stop the leak. Used product as directed but it did not stop the leak,
Date published: 2016-08-18
Rated 2 out of 5 by from good price I'm pretty sure it's a good product, but I can't really say it is a good or bad product, because a few days after I put this product into my car's coolant reservoir (capless radiator), my radiator gave out, cracked. I had a new radiator installed.
Date published: 2015-09-30
Rated 5 out of 5 by from this product works great Just used one bottle and problem solved
Date published: 2015-08-15
Rated 2 out of 5 by from Bars Radiator Stop Leak It doesn't work, two bottles, and it still leaks
Date published: 2015-07-09
Rated 4 out of 5 by from A few miles more... This product did stop a minor leak in a 14 year old vehicle I was needing to get a few more miles from... The Replacement of a Radiator Cap would cost more than the vehicle is worth. However, if I can make some minor repairs by adding a 'Stop Leak' type product such as this, will be worth investing in...
Date published: 2015-06-04
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