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    • C16-jpg-largeLiquid Radiator Stop Leak - 10 Oz. (p/n C16)
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    • Plt11%20jpg%20largePelletized Heavy Duty Stop Leak (p/n PLT11)
    • R6Liquid Radiator Stop Leak - 5.5 Oz. (p/n R6)
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  • Pelletized Heavy Duty Stop Leak
Plt11%20jpg%20large

Pelletized Heavy Duty Stop Leak

Part Number:
PLT11
Dosage:
Use 1 bottle for 6, 8 and 10 cylinder gas or diesel engines. For 4 and 5 cylinder engines, use ½ of liquid and pellets.
Size:
11 fl. oz. (325 mL)

Bar’s Leaks® Original Rhizex® Pelletized Formula Heavy Duty Stop Leak seals internal, external and coolant-to-oil leaks.

  • For component:

    Cooling System
  • What it does:

    • Stops Leaks
    • Lubricates
    • Preventative Maintenance
  • Description
  • Testimonials
  • Comments
  • Related Posts
  • “I wanted to write and let you all know that I am so very happy that your product is one that works… I only wish that I would have trusted in this process a little while sooner. My wife’s van developed a leak that came from the underside of the rear of her engine. After careful inspection by both me and a local repair shop, it was thought that either the intake gasket had failed or the head gasket. I spent two and a half days breaking the entire engine apart and replacing the intake gaskets and putting it all together just to once again see the leak when I was all complete. As frustrated as I was, I went to the local parts store and shared my frustration. They recommended Bar’s Leaks Radiator Heavy Duty Stop Leak. To be honest, I wasn’t much of a fan of those stop leak products but I sure didn’t want to spend another $300-$400 on replacing the head gaskets and the intake gaskets (of which I just replaced hoping it was the least of the two projects). I bought a jug of your product serial number 046087000472 and within 20 minutes of running the car, THE LEAK WAS GONE!!! I can’t believe it! It has been almost 4 months since I did this weekend project and still no leak! I just wanted to let you all know that you have changed my thinking about Bar's Pelletized Stop Leak. I will recommend your product to anyone who has a leak, before they repeat what I did and spend all that money on a wasted weekend of frustration. Thank you! ”

    D. C. Sr. - Hayward, WI
  • “I guess this is not a question really, but a testimonial. I work in the fast lube industry, and deal with additives every day. When I had vapor and fog coming out of my vents in my '96 F350 with a Powerstroke Diesel, my heart sank, having replaced it less than 6 months ago with a new core. I will admit, when the idea of radiator stop leak products came to mind, I doubted it would work. I don't really believe in pour in fix-alls just because of the additives I sell, I don't really believe in. I went out on a limb and got a bottle of Pelletized Stop Leak and poured it in the top hose, after dissolving the pellets in hot water. I poured it in and didn't expect anything to happen. Drove it for 5 minutes, and my windows were fogged up. I cleaned the windows and kept driving. Only a little fogging, and after 20 minutes it was done. Fixed! I couldn't believe it. I would definitely recommend this to anyone I know. I remain skeptical of other "rebuilds in a bottle" but I would sure buy Bar's Leaks again. Bar's, thank you for making a great product that actually works. Feel free to post this as a testimonial. Love the product! ”

    M. L. - Pleasanton, CA
  • “I used The Radiator Heavy Duty Stop Leak in my 96 Acura TL 2.5 five cylinder car with 220,000 miles. I don't have a temp gauge that goes past the midway point anymore. The cooling fan doesn't kick on anymore. I don't have white smoke coming from the hood area anymore. The product did what it is supposed to do -- it sealed up an internal leak in my cooling system my eyes could not see. I will be checking into some of your other products, if and when the time comes. Thanks for putting out a product that WORKS. ”

    K. B. - Newnan, GA
  • “The heater core in my GMC truck was leaking steam from a tiny crack. Required removal of entire dashboard to repair -- either a $600 job at a shop or two days laying on my back in the truck trying to do it myself. Tried Alumaseal, it didn't work. With little hope left, I bought an 11 oz bottle of Bars Heavy Duty Stop Leak, poured it in, and started driving the truck around on errands. About 45 minutes later, the steam coming out of my heater vents suddenly stopped and the smell of anti-freeze vanished. The leak was fixed and has stayed that way since. Thanks for saving me $600, Bar's! ”

    S. T. - L.A., CA
  • “I used the PLT11, Heavy Duty Radiator Stop Leak. I own a 1991 Nissan Maxima with 95,000 miles on it and for the past few months it started to leak coolant. I think it was in the water pump seal area or even the heater core, anyway I added the radiator formula and not only did it stop the leak, the heater works like it did when new. Thanks. ”

    G. G. - Easton, PA
  • “Over six months ago our 1995 Chevy Lumina (70k miles) started leaking from the radiator. I put in Bar's pellets and no more leak. I also started using Bar's Rear Main Seal leak stopper at every oil change in my 1995 Pontiac Grand Prix (200k miles)and it has drastically decreased my oil leak. Here is the one that blows me away though. That same Grand Prix developed a bad radiator leak about 3 wks. ago. I put Bar's pellets in and the leak stopped. For a few days that is. The leak came back again and then stopped again. This proceeded for about three weeks. But my car never ran hot. Finally, I replaced the radiator this past weekend and to my surprise there was a 3inch crack in the plastic tank on the drivers side of the radiator. The crack had even started to spread apart. It was very easy to locate once the radiator was out of the car. I was amazed that the Bar's product kept filling in the crack and allowing me to continue driving. I am telling everyone about it. This product is amazing. ”

    J. G. - Louisville, KY
  • “Your testimonial pages are no joke! Wow! I have always been leery about adding anything at all to the coolant systems in my cars over the years. But this time, facing a major repair bill, I decided I have nothing to lose other than about five dollars. I drive a 1996 Monte Carlo 3.1 V6 (which by the way has been notorious for having lower intake manifold leaks) the low coolant light came on a few weeks ago. In a matter of a few miles after that, I was burning coolant in my exhaust and it was leaking out of the intake, spraying onto my serpentine belt and basically making a mess in the engine compartment. I talked to a few of the guys I work with (old-timers) and they recommended using Bar's Leaks. I was definitely hesitant, but trusted their judgment. The next day I bought the pellets, used it accordingly, and in amazement, I have driven about 5,000 miles since, with no leaks, no squealing, and no mess. The engine runs smooth, quiet, no smells and best of all, doesn’t over-heat! While I'm sure your product won't fix everything, it definitely fixes those nuisance problems. It saved me almost $700 in repairs, and for that, I thank you very much. ”

    C. H. Catasauqua, PA
  • “Bar's Products: I own a 1999 Chevy Suburban and a 1992 Pontiac Bonneville. Both cars are daily drivers and have used your fine products now for five years. Bar's Pelletized Stop Leak is without a doubt the finest product on the market. It simply yet elegantly works and does what it promises. Both cars had leaks and one treatment with your Bar's stopped all leaks within twenty four hours, outstanding performance and value and overall a very solid product. Well done and many thanks and my personal wishes for a safe and happy new year! ”

    Roy R., San Antonio, TX
  • “I told you I would tell you my Bar's Leaks story someday. Here it is: I drove a 1994 Chrysler Concord for 8 years it had 285,000 miles on it when I sold it. I drive 100 miles round trip to work everyday. One winter morning I left for work and noticed the temp gauge getting hot so I figured it had frozen up. So I stopped and let it sit for 15 – 20 minutes and then resumed my trip to work. It started getting hot again but I figured I could make it which I did. I checked the coolant level at lunch and it was low so I went and got some and filled it up. I drove home and everything seemed fine until the next morning when I had the same problem. The car had about 220,000 miles at this point and I knew I did not want to put money into any major repair, so I checked the internet to see if I could find any info or reviews about Bar’s Leaks. I remember a mechanic buddy once telling me it was one of the few automotive chemicals on the market that worked. I found nothing but positive stuff on the net so I tried it and it stopped the leak for 2 years. I had to put a bottle of the heavy duty stop leak in every 6 months for 2 years and then the leak got real bad. So as a last resort effort I did the flush, rinse head gasket repair and then the heavy duty stop leak and drove it for another year and a half before selling it. I never determined if it was a bad head gasket or a cracked head but the leak was on the right head at the rear of the engine. So for about $25.00 - $30.00 I drove the car for 65,000 miles. I know the product works and tell everyone I can about it. The guys here at work razzed me about it but a lot of them have used since I started raving about it. I have been telling everyone who asks or tells me they are having a coolant leak problem to try Bar’s Leaks as it has worked for me. ”

    B. B., Michigan
  • “I wanted to tell you my experience with your product. On Aug 11 we hit a deer just out of Crookston, Minnesota. The hood was pushed in and the radiator was bent around the engine mount of my 99 Accord. We managed to nurse the car back to Crookston leaking almost all of the coolant as we went. We found a small auto parts store where the gentleman there listened to our tale and walked us straight to your product and said if "If this doesn't work it can't be fixed" We poured it into the radiator and added a container of coolant and crossed our fingers. Ten minutes later we were on the road for the three hundred and fifty kilometer ride home and did not have to add a drop of fluid. In total there was over five thousand dollars in damage and the radiator is being replaced but thanks to your product it saved us a large towing bill and a lot of stress and headache. I just thought you might want to hear one of your products success stories. ”

    C. P.
  • “We were recently Super Stock racing in an IHRA Points meet at Martin, MI when we discovered we had a water leak in the cylinder head. Two very nice racers who are sponsored by Bar’s Leaks recommended that we try Pelletized Stop Leak. They gave us a bottle to try, it stopped the leak and we went on to continue racing. We tried to pay them for the product and for their help, but they wouldn't accept anything. We appreciate your product and the people you sponsor! ”

    K. S.
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