The GRACO 16U421 is a collar coupling rod pump component designed for use in GRACO pumping systems. Its material is not specified in available sources, but it is intended to connect or secure rod pump assemblies within GRACO equipment, ensuring proper alignment and function of the pump mechanism.

Key Features:

• Collar, Coupling, Rod, Pump
• 16U421
• Designed for use with GRACO rod pump assemblies; specific models not listed
• Compact design (1.2 x 1.2 x 1.2 inches)
• Lightweight (0.05 lbs)
• Ease of replacement and maintenance

Applications:
Used in GRACO pumping systems for connecting or securing rod pump assemblies, commonly found in industrial, mining, and agricultural equipment for fluid transfer and lubrication applications.

Installation Notes:

• Using genuine GRACO parts ensures proper fit, function, and longevity of the equipment, reducing downtime and maintenance costs.
• Ensure the pump is depressurized and isolated before installation.
• Align the collar coupling rod with the pump assembly as per manufacturer guidelines.
• Tighten to recommended torque specifications to prevent leaks or misalignment.
• Inspect for wear or damage during routine maintenance.