The Case IH 3166280R1 is a genuine OEM tensioner designed for various Case IH agricultural tractors, including JX, Maxxum, MXU, and Puma series. This critical component maintains proper belt tension, preventing slippage and ensuring reliable operation of engine accessories. Weighing approximately 0.80 kg, it is manufactured to Case IH's high standards for durability and precise fitment, providing consistent performance in demanding farm environments. It also cross-references with New Holland part numbers 87304190 and 87304190R.