







🛠️ Fix leaks like a pro—permanent, painless, powerful.
K-Seal Ultimate Head Gasket & Block Repair is a professional-grade coolant additive that permanently seals blown head gaskets, cracks, and porous engine blocks. Featuring 33% more sealing power and ceramic micro-fibres, it fixes leaks up to 0.64mm in a single, easy step without draining your engine. Compatible with all coolant types and engine materials, it’s trusted by mechanics and independently verified to meet ASTM D3147 standards, delivering a cost-effective, long-lasting engine repair solution.
| ASIN | B00Q55SV6O |
| Best Sellers Rank | #1,526,369 in Automotive ( See Top 100 in Automotive ) #315 in Gasket Sealers |
| Brand | K-Seal |
| Customer Reviews | 3.9 3.9 out of 5 stars (567) |
| Date First Available | November 25, 2014 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.19 pounds |
| Item model number | KSLST3501 |
| Manufacturer | K-Seal International Limited |
| Manufacturer Part Number | KSLST3501 |
| Model | K-Seal Ultimate Head Gasket Repair |
| Package Dimensions | 7.95 x 2.72 x 2.2 inches |
T**.
Ut worked
Head gasket and it worked
R**Y
Sealer
Works well.!!
R**R
Kalimex works Great
I put Kalimex in My Radiator for a Leaking Head Gasket, Followed The Directions, Ran The Vehicle as Directed & My Leaking Head Gasket Doesn't Leak Anymore!!!!! Money WELL SPENT!
S**A
Worked great
This stuff works !! All I can say it’s worth it and you will get some more time out of your motor
O**I
Double amount keep heater off works
I doubled the recommended amount in a V6 engine. Drove it high in the RP m's with the heater off. Allow to cool overnight in my case, it was a couple of days and did initially it didn't seem I wasn't allowed to cool long enough. Although after sitting for a couple of days, it's still completely prior to us in the case, ill division was losing a gallon of coolant every hour after continuous highway driving.
R**O
Ho prima messo a livello l'acqua nella vaschetta a motore freddo, ho tolto la quantità d'aqua dalla vaschetta pari al prodotto, ho versato il prodotto nella vaschetta , ho avviato il motore METTENTO LA STUFA A CIRLCOLO ARIA CALDA , ho fatto riscaldare da fermo il motore fino a 80 gradi poi ho circolato per 3/4 km . ho spento e fatto raffreddare 5/6 ore. dopo di che ho usato la vettura regolarmente. IL PRODOTTO HA FUNZIONATO. La vettura è una Fiat stilo SW 140cv Multijet con 450.000 aveva soffiatura alla testata che mi consumava circa 150ml di acqua ogni 100 km (un bel bichiere di acqua) cacciando fumo bianco dalla marmitta. Ora dope Tre giorni ho percorso circa 560 km NON CACCIA FUMO BIANCO NE CONSUMA PIU ACQUA: al momento va benissimo non so quanto duri . comunque ho rimandato la rottamazione!!!
J**Z
Subaru Outback 2.5 l anée 2000, 210.000 km. Elle perdé l’anticongelant par la joint de culasse en grande cantité (odeur, fumée dessous le capot). J’utilisé K-Seal Ultimate et le problème a été corrigé. 3 semaines plus tard il n’y a le moindre symptôme du problème.
R**D
Good product work on my car now .now to gas prblm everthing stop
S**D
La verdad que ha funcionado tenía un poro, le echamos el líquido hicimos 25 km como nos recomendaron y de verdad que lo notamos el coche tiraba mucho mejor, fácil de poner.
J**N
Used this on my 2005 Camry for a temporary fix on what I think is a head gasket or heater core issue. Made my car run better and will run through for 1000kms and reflush. Not a permanent fix. However will do until I decide if I want to buy another car. Great product and would highly recommend 5 stars
Trustpilot
2 weeks ago
2 days ago