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Graco 159470 Displacement Rod

The Graco 159470 Displacement Rod is a genuine OEM part designed to deliver smooth, reliable piston movement inside Graco 2:1 supply pumps.

  • Fits Graco 226-815 and 225-816 pumps
  • Precision-machined for stable pressure output
  • Durable construction for long service life
  • Ideal replacement for worn or damaged rods

$209.85
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Graco 159470 Displacement Rod – Compatibility and Specifications

Compatible Machines

The Graco 159470 Displacement Rod is used in the following Graco industrial pump models:

  • Graco 2:1 Standard Circulating Supply Pump – Model 226-815
  • Graco 2:1 Standard Circulating Supply Pump – Model 225-816

Product Description

The Graco 159470 Displacement Rod is a precision-machined OEM component designed to transfer drive force to the piston assembly inside Graco displacement pumps. It ensures smooth reciprocation, stable pressure, and consistent material flow during operation.

Key Features

Part Number 159470
Component Type Displacement Rod (Pump Drive Component)
Primary Function Transfers motion from the pump drive to the piston to generate fluid pressure
Material Hardened, precision-machined metal for long wear life
System Type Used in Graco 2:1 Standard Circulating Supply Pumps

Benefits

  • Ensures accurate pump stroke movement
  • Maintains stable fluid pressure during operation
  • OEM-quality construction for durability
  • Improves efficiency when replacing worn or damaged rods

When to Replace

Replacement is recommended when you notice any of the following:

  • Irregular or weak pump strokes
  • Packing wear caused by rod surface deterioration
  • Visible scoring, bending, or corrosion on the rod

Frequently Asked Questions

It drives the piston inside the displacement pump, producing the fluid pressure required for spraying and circulation.

Check your pump’s manual or parts diagram for part number 159470. It is confirmed to fit Graco 2:1 Standard Circulating Supply Pump models 226-815 and 225-816.

Yes. Because the rod and packings wear together, inspecting and replacing packings helps restore full pump performance and prevent early wear.

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