ULTIMATE K3501 Head Gasket Repair is the simple, permanent fix for blown head gaskets, cracked heads and blocks, and porous engine blocks.  Guaranteed repair for the life of your engine, or your money back!  Our unique formula works with all water-cooled engines – there’s no need to drain or flush your cooling system, and it doesn’t matter what kind of antifreeze or coolant you’ve used previously.  Simply shake the bottle, pour  ULTIMATE into your cooling system, and you’re back on the road.  Just one 16oz bottle of  ULTIMATE is enough to fix blown head gaskets and cracked heads in cars, SUVs and small trucks.  For larger vehicles, simply use two bottles. 
  is Simple to Use - Just Shake Pour Go. 
A permanent repair, guaranteed for the lifetime of the vehicle's engine
  is Scientifically tested
Only product that can be added to the overflow tank
Only product that positively will not clog the coolant system
Only product that can the system doesn't have to be ice cold
's Unique formula works on all water-cooled vehicles
Guaranteed to make a repair or your money back
K- Seal Mixes with all type of antifreeze
  Works on Heater Cores & Freeze Plug Leaks
No draining or flushing needed
16oz bottle treats cars, SUVs and Trucks