The Donaldson P777639 is a high-performance, genuine RadialSeal™ primary air filter engineered to provide superior engine protection. This robust filter is specifically designed for demanding agricultural and industrial applications, including Storti CSD series silage cutters. It effectively captures airborne contaminants, ensuring clean air intake to maintain optimal engine performance and extend equipment lifespan. Key dimensions include an outer diameter of 209.5 mm, an inner diameter of 105.4 mm, and an overall length of 330.2 mm.