The Case IH 84424977 Starter Disc Plastic (B) is a genuine OEM replacement component designed for various Case IH agricultural tractors. This durable plastic starter disc is crucial for the proper function of the starting system, ensuring reliable engagement and performance. It provides a precise fit and long-lasting durability for demanding agricultural operations, compatible with a wide range of MXM, MXU, Puma, and Maxxum series models.