The Perkins 00859101 is a genuine OEM water pump repair kit designed for various Perkins 6.354 series engines, including models 6.354, 6.372, 6.3544, 6.3724, C6.3544, T6.3544, and TC6.3544. This essential kit ensures the proper maintenance and restoration of the water pump's functionality, extending engine life and preventing overheating. It features a compact design with a length of 95 mm, width of 51 mm, and height of 51 mm, weighing approximately 0.12 kg.