Prevent cooler blockage causing engine damage. The engines water jackets contains a white talcum type of powder from new that speeds up the engine coolant break down. This coolant slurry blocks the passages in the oil to coolant heat exchanger resulting in engine damaging high temperatures. The easily installed BD Coolant Filter mounted in-line with the engine coolant hoses stops the damage. Complete kit comes with filter head, spin-on filter, mounting bracket, hoses, clamps, fittings, mounting hardware and a bypass valve for easy change of filter.