The GRACO 181879 Q ROD, DISPLACEMENT is a piston rod designed for use in GRACO displacement pumps. It is constructed from carbon steel and serves as a critical component in the reciprocating motion of the pump, ensuring reliable transfer of fluids in industrial lubrication and maintenance systems.

Key Features:

• Displacement rod (piston rod)
• Carbon steel
• GRACO displacement pumps (e.g., Ultra 400/500, EM380, EM390, EM490 series; specific compatibility should be verified with equipment manual)
• Engineered to meet OEM specifications for durability and reliability
• Designed for easy installation and maintenance
• Supports high-duty cycle operations in demanding environments

Applications:
Used in industrial fluid transfer and lubrication systems, particularly in GRACO displacement pumps for mining, agriculture, and other heavy-duty applications.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, longevity, and safety of the equipment. Non-genuine parts may compromise system reliability and void warranties.
• Follow the equipment manual for step-by-step installation instructions
• Ensure proper alignment of the piston rod during assembly
• Grease intake valve o-rings with non-silicon grease as recommended
• Tighten packing nut just enough to stop leakage, but avoid over-tightening
• Torque pump cylinder to intake valve as specified (e.g., 80 ft-lb)
• Tighten locknut to recommended torque (e.g., 70 ft-lb)
• Regularly inspect the rod for wear and damage
• Replace worn or damaged rods promptly to prevent pump failure
• Use only recommended lubricants and replacement parts