Genuine SF-Filter SL5945 inner air filter, designed for optimal engine protection in various heavy machinery. This high-quality filter ensures clean air intake, preventing contaminants from reaching critical engine components. It is a direct equivalent to OEM part numbers such as Caterpillar 1421340, John Deere AT175369, Komatsu 6001855100, and Volvo 11037868. With an outer diameter of 78 mm, inner diameter of 52 mm, and height of 240 mm, it provides precise fitment and reliable performance for a wide range of excavators and other construction equipment.