The Case IH 177129A1 is a genuine OEM radiator bottom tank designed for various Case IH agricultural tractors. This essential component ensures proper cooling system function by securely holding the coolant at the bottom of the radiator. It is compatible with a wide range of MX, MXM, MXU, Puma, and Maxxum series models, including MX100, MX110, MX120, MX135, MX150, MX170, MX80C, MX90C, MX100C, MXM120, MXM130, MXM140, MXM155, MXM175, MXM190, MXU100, MXU110, MXU115, MXU125, MXU130, MXU135, Puma 115, Puma 125, Puma 140, Puma 155, Puma 165, Puma 180, Puma 195, Puma 210, Puma 225, Puma 230, Puma 240, Maxxum 100, Maxxum 110, Maxxum 115, Maxxum 120, Maxxum 125, Maxxum 130, Maxxum 135, Maxxum 140, Maxxum 145, and Maxxum 150 models. This part ensures reliable performance and a precise fit for maintaining your tractor's cooling efficiency. Replaces part number 87402636.