RISLONE Radiator Stop Leak Concentrate 41196
SKU: 27064694905

RISLONE Radiator Stop Leak Concentrate 41196

Sale price$15.40 Regular price$17.11
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Description

RISLONE Radiator Stop Leak Concentrate 41196Rislone Radiator Stop Leak Concentrate is specially designed to stop minor cooling system leaks and drips caused by normal cooling system wear and age. Works with ALL Types and Colours of Antifreeze Coolant and or Water. Stops & Seals Coolant Leaks Seals Leaks in Radiators, Gaskets, Heater Cores & Freeze Plugs Works with ALL Types and Colours of Antifreeze Coolant and or Water Dosage & Directions Dosage Passenger cars and light trucksUse one bottle


Rislone Radiator Stop Leak Concentrate is specially designed to stop minor cooling system leaks and drips caused by normal cooling system wear and age. Works with ALL Types and Colours of Antifreeze Coolant and/or Water.

  • Stops & Seals Coolant Leaks
  • Seals Leaks in Radiators, Gaskets, Heater Cores & Freeze Plugs
  • Works with ALL Types and Colours of Antifreeze Coolant and/or Water

Dosage & Directions

Dosage
Passenger cars and light trucks—Use one bottle for 6 & 8 cylinders and half bottle for 4 cylinder engines. Small engines or other small systems use approximately 20 mL per liter of fluid capacity. Over the road and heavy-duty equipment—Install one bottle for every 15 liters of coolant capacity.

Directions

  1. Shake well and pour into radiator after engine cools
  2. Fill radiator and overflow tank to proper level and reinstall cap
  3. Drive or idle engine for 15 to 30 minutes
  4. Leave in cooling system for continued protection
  5. For preventative maintenance, use once a year to help guard against future leaks

Opening cooling system while engine is hot or running may cause severe burns.

Disposal 
Observe local laws and regulations. Where permitted, dispose of in sanitary sewer systems. Never pour onto the ground or storm sewer system.

Compatibility

Do not mix or install with any other product. If another product has been installed,  flush the system thoroughly.

Frequently Asked Questions

Can Rislone Radiator Stop Leak be installed in existing antifreeze coolant?
Yes, it works with all types and colours of antifreeze coolant and/or water.

Will Rislone Radiator Stop Leak work in the new extended life antifreeze?
Yes, Rislone Radiator Stop Leak works with all types and colours of antifreeze coolant and/or water.

Do I need to drain my cooling system after using Rislone Radiator Stop Leak?
No, this product is designed to be left in the cooling system to protect from future leaks and overheating.

How long does it take to see results?
We recommend you drive/idle the vehicle for 15 to 30 minutes. In most cases the leak will be sealed instantly, but others will require up to 30 minutes. If the leak is not sealed in 30 minutes, a second application may be required, or mechanical repair may be needed.

Will Rislone Radiator Stop Leak plug my heater core?
No, Rislone® Radiator Stop Leak will not clog a clean heater core. If using it to stop heater core leaks, make sure you turn your heater control to HOT. Some vehicles have a valve that controls coolant flow through the core and is only opened in the HOT position.

What are the dosage recommendations?
Passenger cars and light trucks—Use one bottle for 6 & 8 cylinders and half bottle for 4 cylinder engines. Small engines or other small systems use approximately 20 mL per liter of fluid capacity. Over the road and heavy-duty equipment—Install one bottle for every 15 liters of coolant capacity.

Can I install Rislone in my overflow reservoir?
Yes, if direct access to the radiator cap is not available, install in overflow tank.

I accidently added the Rislone Radiator Stop Leak into my engine oil, what should I do?
It is only designed to be added to the cooling system. If the product is installed in the engine oil and the engine has not been started, in many cases you can remove the valve cover and drain the oil leaving the drain plug off. Then use an engine flush washing out the head keeping special attention to the oil return holes that run down to the oil pan. Clean these out and pour the engine flush down these holes flushing everything into the oil pan and out the drain hole. If the engine has been run, you need to take the vehicle to have a professional mechanic evaluate what can be done to clean the inside of the engine. This might include taking the engine apart to clean all of the parts.  

Technical Information

SAFETY DATA SHEET
CODE: 41196
SIZE: 325ML 
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 27064694905

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4.2 ★★★★★
Based on 1516 reviews
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Product Reviews
S
Verified Purchase
Scott
Whiting, US
★★★★★ 5
easy install
fits well not exact like original but looks great.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 20, 2025
A
Verified Purchase
Amazon Customer
Natrona Heights, US
★★★★★ 5
Great replacement
Great replacement for OEM part the dealer wanted 50 bucks each for
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
B
Verified Purchase
Brandon H.
San Leandro, US
★★★★★ 5
Happy with the price and quality!
Size: Single Slat, Color: Matte Black, Size: Single Slat, Color: Matte Black
I bought this set with low expectations to replace my OEM grill which was falling apart and getting loose. I thought, not much to lose. They actually turned out to fit and look great. Just one tip-- when installing, be sure that you are correctly positioning the tension clips to be in contact with the end of the hood notch. There are a lot of Youtube guides you can find online to help you with it. Otherwise, they will just be totally loose and not fit correctly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 12, 2019
F
Verified Purchase
Fru
New York, US
★★★★★ 5
Easy install !! They fit well and look good
Size: Single Slat, Color: Chrome
The grill is plastic of course but for the price it makes the car look good. I had a cracked grill and it looked so ugly. These popped right in easy install and makes the car look good again I am happy.
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Reviewed in the United States on May 17, 2026
N
Verified Purchase
Neutrals
Grantham, US
★★★★★ 1
If zero stars were an option……
Size: Single Slat, Color: Chrome
Do not buy this product extremely cheaply made the clips don’t flex and they break when installed also a horrible fit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026

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