The Donaldson 5.79" Spin-On Coolant Filter is designed to provide superior protection for your coolant system. This filter is constructed with rugged materials and a durable design to ensure it can withstand extreme temperatures and conditions. It also contains enough additive to initially charge the cooling system to reach the first service interval. With a range of filtration methods available, you can choose the one that best suits your maintenance practices and schedules. FleetPride is your First Click in Heavy Duty®.