The Case IH 87739189 Idler Assembly is a genuine OEM component designed for various Case IH MXM series and New Holland TM series agricultural tractors. This critical part maintains proper belt tension, contributing to the efficient operation of engine accessories and overall machine performance. Manufactured to CNH Industrial's rigorous standards, it ensures durability and precise fitment for models such as MXM120, MXM130, MXM140, MXM155, MXM175, MXM190, and their New Holland equivalents.