The Case IH 84443965 is a genuine OEM air filter designed to provide superior engine protection for various agricultural machinery. This essential component ensures clean air intake, preventing harmful contaminants from entering the engine and maintaining optimal performance and longevity. It is specifically compatible with Case IH Farmall B series tractors including 30B, 35B, 40B, 45B, and 50B models, as well as New Holland Boomer 30, 35, 40, 45, 50, and Workmaster 33, 37, 40, 50 series tractors. With an outer diameter of 101 mm, an inner diameter of 63 mm, and a length of 178 mm, this filter meets precise specifications for a perfect fit and reliable filtration.