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Coolant & DEF Filters are essential components in a vehicle's cooling system, designed to remove contaminants and impurities from the coolant and Diesel Exhaust Fluid (DEF). These filters help maintain the efficiency and performance of the engine by preventing debris from entering and potentially causing damage. Coolant filters specifically target particles and rust that can accumulate in the coolant, while DEF filters focus on ensuring the purity of the fluid used to reduce harmful emissions. Regular maintenance and replacement of Coolant & DEF Filters are crucial for prolonging the lifespan of the engine and ensuring optimal functionality. Trust in high-quality filters for effective protection and performance.