Graco 16U804 Displacement Rod

Graco 16U804 Rod, Displacement Product Details

The Graco 16U804 Displacement Rod is a precision-machined rod used inside specific displacement-pump lower assemblies. It ensures smooth piston movement, consistent fluid delivery, and long-term durability in professional and industrial spraying applications.

Compatible Machines

This part is compatible with pump systems that use the following:

• 680 cc Pump Lower Assembly (factory-specified systems using this lower)

Key Features

• Durable build: Engineered for high-pressure operation and long service life.
• Precision alignment: Ensures smooth piston travel and consistent displacement.
• OEM replacement: Fits systems designed for part number 16U804 without modification.
• Corrosion-resistant surface: Reduces internal wear in pump lower assemblies.

Technical Highlights

• High-strength alloy construction
• Designed specifically for displacement-pump lower assemblies using this rod model
• Supports high-viscosity and professional-grade coating materials
• Maintains volumetric accuracy during operation

Installation & Maintenance Tips

• Always confirm your pump lower assembly supports this rod model before installation.
• Lubricate internal seals and packing components during assembly.
• Inspect regularly for scoring or wear to maintain pumping efficiency.
• Replace packings and seals during rod replacement for best performance.

Frequently Asked Questions