The R911377978 Heat Exchanger HAH02.1-WA012-020-15-S1-N-50-NNNN is designed to efficiently transfer the power dissipation of water-cooled components in a drive system to an external cooling medium. This water-air heat exchanger transfers the dissipated heat into the ambient air, making it ideal for IndraDrive ML and HMU05. Original Bosch Rexroth products are locally supported by CreatX Technology SRL, providing superior quality and technical support.