The 4955708 water pump fits Cummins ISM, L10, and M11 diesel engines, ensuring efficient coolant circulation for optimal performance. Cross reference numbers include 4089389, 4972850, 4972842, and 4972843, making identification and replacement easy. This water pump is essential for maintaining the efficiency and reliability of Cummins diesel engines in heavy-duty applications. Not sure will this part fit? We can search quickly and confirm or find you the correct one! You need correct replacement? Just let us know and our parts specialist will help right away!