The CMA Dishmachines 03226.00 Dishwasher Pump O-Ring is a large sealing ring used in selected commercial dishwasher pump assemblies. Its circular profile fits within the mating area of the pump components to maintain a sealed connection during equipment operation. The O-ring has an outside diameter of approximately 4-3/4 inches, providing an important dimensional reference when identifying the component. It may be considered when an existing pump seal is worn, flattened, cracked, or no longer suitable for service. When selecting a replacement, compare the outside diameter, sealing location, material requirements, pump assembly, and equipment application with the available product details.