Holts Professional Leak Repair in Cylinder

Holts Professional Leak Repair in Cylinder is a heavy-duty leak repair solution specifically designed for automotive cooling systems. This powerful formula effectively seals severe leaks in cylinder head gaskets and engine blocks, allowing you to perform at-home repairs and avoid expensive garage fixes. With its safe sealing properties, it ensures no damage or blockage occurs within your system.

This product permanently seals cracked cylinder blocks and internal/external leaks, making it suitable for use with iron, steel, and aluminum engines. To use, simply pour Wondarweld into the cylinder head port, never into the oil. Before application, remember to drain and flush the cooling system, and replace the upper hose after adding the product.

Product Size: 250ml