The Donaldson 5.35" Spin-On Coolant Filter is designed to protect your engine from harmful contaminants and debris. This filter is constructed with seals specifically designed to withstand extreme temperatures, and contains enough additive to initially charge the cooling system to reach the first service interval. The product range allows you to choose the filtration method that suits your maintenance practices and schedules. The rugged design and materials provide extra durability, ensuring your engine is protected from contamination. FleetPride is your First Click in Heavy Duty®.