ST5516 Heavy-Duty Multi-Purpose One Step Permanent Coolant Leak Repair, 8oz, Pour and Go, Mixes with All Antifreeze, No Flushing Required

Description

🚀 Fix leaks fast, drive worry-free—your engine’s new best friend!

K-Seal ST5516 Heavy-Duty is a professional-grade, one-step coolant leak repair solution that permanently seals leaks in water-cooled engines within minutes. Compatible with all antifreeze types and requiring no flushing, it’s engineered for heavy-duty commercial and agricultural vehicles. Trusted by mechanics worldwide and independently tested to ASTM D3147 standards, it offers a durable, non-corrosive fix that enhances engine reliability and performance.