The HIFI FILTER SA17678 is a high-quality primary air filter designed to provide superior filtration for various heavy machinery applications. This filter ensures optimal engine performance and longevity by effectively removing dust, dirt, and contaminants from the air intake system. It serves as a direct replacement for OEM part numbers including Caterpillar 1421339, John Deere AT175916, Komatsu 6001851100, Liebherr 7362084, and Volvo 11033996. With an outer diameter of 121 mm, an inner diameter of 80 mm, and a height of 250 mm, it is engineered for a precise fit and reliable operation in demanding environments, suitable for models such as Caterpillar 320D, John Deere 210G, Komatsu PC200-8, and Volvo EC210C.