The Case IH 84123902 is a genuine OEM notched harrow disc blade, precisely engineered for optimal soil engagement and durability in demanding agricultural applications. Measuring 22 inches (558.8 mm) in diameter with a 5 mm thickness, this robust disc features a 4-bolt pattern with a 140 mm bolt circle diameter, ensuring secure fitment. It is designed for various Case IH True-Tandem tillage machines, including the 330 Turbo, 340, and 370 models, providing efficient residue management and soil preparation.