The DONALDSON 3.66" OD synthetic media type spin on coolant filter features synthetic media that enhances filtration efficiency by capturing smaller contaminants. Its spin-on design offers a secure fit, minimizing the risk of leaks during operation. The filter maintains consistent coolant flow, optimizing engine cooling performance. It helps of the coolant by maintaining cleanliness and effectiveness. Additionally, it is designed to reduce the risk of system overheating, thereby protecting engine components effectively throughout its usage.