The Case 188D Water Pump is a reliable and efficient solution for your water pumping needs. With an impeller diameter of 3-1/8" and including a hub and mounting gasket, this pump is designed for practicality and ease of use. It is compatible with OEM pump numbers A146584, A48363, A36979, A37758, G11939, and OEM casting number A37751. Sold individually, this water pump is a cost-effective and essential component for your equipment. Trust the Case 188D Water Pump for dependable performance and long-lasting durability.