Graco 189317 Displacement Rod

The Graco 189317 Displacement Rod is a durable OEM piston rod designed for heavy-duty Graco industrial pumps. It ensures smooth operation and consistent fluid delivery under high pressure.

OEM replacement for Dura-Flo 1100 and Premier DF1100 CS (74:1) pumps
Constructed from stainless steel for maximum wear resistance
Essential for restoring pump performance and pressure consistency

$1560

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Description

Precise OEM Replacement for Heavy-Duty Graco Pumps

Compatible Machines

This OEM rod is used on select high-ratio industrial Graco pumps. Confirm your exact pump model and ratio before ordering.

Graco Dura-Flo 1100 Pump
Graco Premier DF1100 CS (74:1) Unit

Note: Compatibility can vary by configuration and build date—always verify with your pump manual or parts list.

About the Graco 189317 Displacement Rod

The Graco 189317 Displacement Rod (also called a pump piston rod / Q-rod) is a critical drive component that links the pump’s drive mechanism to the fluid piston. On the up-stroke it draws coating into the chamber; on the down-stroke it forces material into the hose for consistent, high-pressure delivery.

Genuine Graco OEM component engineered for durability and fit.
Designed for high-ratio, heavy-duty industrial pumps (DF1100 family).
Precision finish to help maintain packings and extend pump life.
Ideal when experiencing scoring, excessive play, or inconsistent pressure due to rod wear.

Quick Specifications

Part Number	189317
Item	Displacement Rod (pump piston/Q-rod)
Material	Stainless steel (OEM construction)
Typical Application	Dura-Flo 1100, Premier DF1100 CS (74:1) series pumps
Fitment Guidance	Match pump series, ratio, and build/kit version; verify via service manual.

Why Choose the OEM 189317 Rod

Assures correct stroke geometry and alignment with pistons and packings.
Maintains factory performance and pressure stability on demanding jobs.
Reduces premature wear on seals, guides, and bushings versus non-OEM parts.

Installation & Care Tips

Inspect piston/packing kits, upper/lower guides, and seats; replace worn parts with the rod.
Lubricate per Graco specs; avoid dry starts to protect packings.
Torque fasteners to specification; confirm straight, burr-free rod surface before assembly.
Pressure-test for leaks and pressure drop after installation.

Frequently Asked Questions

No. This listing is for the rod only. Packings, guides, seats, and related wear parts are sold separately in their respective kits. Replacing them alongside the rod is recommended for best results.

Check your pump’s service manual or parts breakdown for part 189317. Verify the exact pump ratio and any revision notes; DF1100 series can have configuration differences by build date or kit.

Scoring on the rod surface, frequent packing failures, fluctuating pressure, leaks, or abnormal noise during the stroke are common signs. If present, inspect the rod and mating components and replace as needed.

Not necessarily. Even within DF families, rods can differ by ratio, stroke, or revision. Always match the exact part number specified for your pump model and serial range.

Yes—pair the new rod with fresh packing kits, seats, and guides/bushings. This helps ensure proper sealing, alignment, and longevity after installation.