Jabsco part # 18753-0384

The Jabsco 18753-0384 is a rocker switch for a Jabsco rubber impeller pump. MECHANICAL SEAL REPLACEMENT
Under normal circumstances, the shaft seal should function properly for several hundred hours of operation. If the seal should ever develop a leak and need to be replaced, begin the procedure by following the above instructions for changing an impeller. Once the impeller has been removed, remove the two screws that secure the pump head to the motor and pull the pump body off of the motor shaft. Using a piece of 1/2 Inch wood dowel from the back side of the body push against the seal to dislodge it from the seal bore. When the seal is removed, ensure the seal bore is clean of all debris. From the front side of the pump housing, place the new seal in the seal bore, ensuring the lip of the seal is pointing toward the impeller bore