Graco 17H869 Pump Cylinder

Part Name: Graco 17H869 Pump Cylinder – Original OEM replacement for GMax II 7900 IronMan sprayers.
Function: Ensures reliable paint flow, smooth operation, and long service life for professional applications.
Compatibility: Fits GMax II 7900 IronMan Hi-Boy, Lo-Boy, and Roof Rig models.
Quality: Factory-engineered for durability, precision, and consistent performance.

Retail Price: $1010

You save: $282.8 (28.00%)

Our Price: $727.2

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Description

Graco 17H869 Pump Cylinder

Compatible Machines

Graco GMax II 7900 IronMan – Lo-Boy
Graco GMax II 7900 IronMan – Hi-Boy
Graco GMax II 7900 IronMan Roof Rig

What is the Graco 17H869 Pump Cylinder?

17H869 Pump Cylinder is an OEM replacement fluid section cylinder for select Graco gas airless sprayers. It restores proper sealing and pressure in the pump assembly, helping maintain consistent output, pattern quality, and long service life.

OEM-grade fit for the specified GMax II 7900 IronMan variants.
Designed for high-demand coatings and professional, all-day spraying.
Direct swap in part with no frame modifications required.

Key Details & Specifications

Technical Overview
Part Number	17H869
Item Type	Pump Cylinder (Fluid Section)
Sprayer Family	GMax II 7900 IronMan (select Lo-Boy, Hi-Boy & Roof Rig variants)
Installation	Direct replacement in the pump assembly; inspect/replace packings & seals while open.
Typical Use	High-output, professional coating applications requiring robust fluid section performance.

Fit Notes

Verify your sprayer label for GMax II 7900 IronMan and frame style (Hi-Boy/Lo-Boy/Roof Rig).
When replacing the cylinder, it’s best practice to renew seals/packings for optimal longevity.
If your unit has a different pump variant, check the exact pump assembly BOM before ordering.

Frequently Asked Questions

Check the model decal for GMax II 7900 IronMan and the frame style (Hi-Boy, Lo-Boy, or Roof Rig). If it matches the models listed above, this cylinder is the correct OEM replacement. When in doubt, provide your full model & serial number to confirm compatibility.

It’s strongly recommended to replace packings/seals while the pump is open. Fresh sealing components help restore pressure, reduce leakage, and extend the life of the new cylinder.

Hi-Boy sprayers have taller carts with higher hose & gun storage and usually larger wheels for jobsite maneuverability. Lo-Boy frames sit lower for easier loading and transport. The pump cylinder compatibility is determined by the sprayer’s specific 7900 IronMan configuration noted above.

Installation Tips

Clean the fluid section thoroughly; avoid scoring the new cylinder during assembly.
Lubricate packings per Graco guidelines before reassembly.
After installation, prime with clean solvent or water (per coating) and check for leaks at low pressure before full operation.