🔧 Seal the Deal with Confidence! Stay confident in your assembly, even in wet conditions. Crafted to meet the highest industry standards. Lubricates and seals in one simple step. Perfect for a variety of automotive applications. Experience sealing you can trust, designed for professionals. 50 ml tube Corrosion prevention Anaerobic hybrid The LOCTITE 1158514 Head Bolt and Water Jacket Sealant is a single-component anaerobic hybrid designed to provide reliable sealing for automotive applications. With a 50 ml tube, it lubricates fasteners during assembly, prevents premature loosening, and eliminates corrosion, making it ideal for head bolts, water pump bolts, and more. Trusted by professionals and OEM-specified, this sealant ensures durability and performance in any engine repair or build.