The Case IH 51433787 Knuckle Assembly is a genuine OEM replacement part designed for various New Holland T4 series tractors. This critical component ensures proper steering and suspension functionality, maintaining the integrity and performance of your agricultural machinery. Engineered to CNH Industrial's specifications, it provides reliable fitment and durability for models including T4.55S, T4.65S, T4.75S, T4.85S, T4.95S, T4.105S, T4.55F, T4.65F, T4.75F, T4.85F, T4.95F, T4.105F, T4.55V, T4.65V, T4.75V, T4.85V, T4.95V, T4.105V, T4.55LP, T4.65LP, T4.75LP, T4.85LP, T4.95LP, and T4.105LP.