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🛡️ Stop leaks like a pro — keep your engine cool and your ride unstoppable!
Bar's Leaks 1177 Radiator Stop Leak Tablets deliver professional-grade leak sealing and rust prevention used by OEMs worldwide. This 1.76oz formula neutralizes pH imbalance, controls electrolysis, and lubricates your cooling system, working seamlessly with all antifreeze types or water. Ideal for proactive maintenance, it seals leaks internally and externally, ensuring your radiator stays leak-free up to 15,000 miles or one year per application.
| ASIN | B0CLB953N4 |
| Best Sellers Rank | #75,212 in Automotive ( See Top 100 in Automotive ) #3 in Radiator Conditioners & Protectants |
| Brand | Bar's Leaks |
| Brand Name | Bar's Leaks |
| Container Type | Bottle |
| Customer Reviews | 4.3 out of 5 stars 166 Reviews |
| Included Components | Bar's Leaks Radiator Stop Leak Tablets, 1.76oz |
| Item Form | Tablet |
| Item Type Name | Radiator Stop Leak |
| Liquid Volume | 1.76 Fluid Ounces |
| Manufacturer | Bar's Products |
| Model Number | 1177 |
| Number of Items | 1 |
| Package Information | Bottle |
| Part Number | 1177 |
| Recommended Uses For Product | Automotive |
| Specific Uses For Product | Prevent Corrosion |
| UPC | 046087011775 |
| Unit Count | 1.76 Ounce |
| Warranty Description | See manufacturer |
K**N
Works, stopped radiator and heater core leak.
Works to stop leak
A**R
It Works!
I'm shocked that a $4 fix like this works. I had a substantial coolant leak on my Ram 1500 and two tabs of this seems to have sealed it right up. Like others mentioned this gets messy during shipping so definitely order it separately if you can. You don't want to have other items in the same package.
R**.
works well
works well on a small leak, I use 1 in cooling system to stop any small leaks
L**S
Worth more than the money
This stuff works miracles. Bar's has a solid rep, and this is no different. Awesome.
S**G
Good tablets to carry and easy to pack and store.
I’ve used Bars leak brand over the years for a couple of emergency's. They always performed as intended. I bought these to carry in my tail bag on my adventure bike. The last thing I need is a leaky radiator or cracked radiator out in the middle of nowhere. I used them years ago in a Jeep when a leak was developed on a trail. Crumble them up, add water and you’re back in business. I bought these as a preventative measure and would recommend them to anyone venturing off the beaten path.
J**E
Worked fast
Stopped the leak
J**.
These work great
These work great! My leak stopped within 5 minutes of adding them to my radiator. My leak was coming from between the head and block.
H**.
Didn’t work long
Good price but only worked a few days
Trustpilot
1 week ago
3 weeks ago