The GRACO 161543 is a coupling and connecting rod component designed for use within GRACO industrial equipment, particularly in pumps such as the Bulldog and King series. Its material is not specified in available documentation, but it is intended to securely connect and transmit motion between components in medium to high viscosity material transfer systems. Key Features: Coupling, Connecting Rod Compatible with GRACO Bulldog and King series pumps (e.g., Model 220648, Series B 20:1 Ratio King Pump) Designed for reliable motion transmission in industrial pump assemblies Essential for maintaining operational integrity in material transfer systems Ease of maintenance and replacement as part of routine pump service Applications:Used in industrial pumps for the transfer of medium to high viscosity materials, suitable for professional environments such as mining, agriculture, and manufacturing. Installation Notes: Using genuine GRACO parts ensures optimal performance, safety, and longevity of the equipment. Refer to the specific pump manual for detailed installation instructions Ensure proper torque is applied to related fasteners as specified in the manual (e.g., torque to 60 ft-lb for certain connections) Lubricate threads and moving parts as recommended Regularly inspect for wear and replace as part of preventive maintenance