Graco 249028 Piston Rod Replacement Q Kit

The Graco 249028 Piston Rod Replacement Q Kit is an OEM quick-replacement assembly designed to restore pump performance and pressure consistency in compatible Graco sprayers.

Fits Mark V, TexSpray 5900 HD, GMAX II 5900/7900 HD, and IronMan 300E/500G models
Includes rod and piston assembly for direct installation
Rated up to 3,300 psi for professional spraying performance
Ideal for restoring pressure, prime, and spray consistency

Retail Price: $540

You save: $144.72 (26.80%)

Our Price: $395.28

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Description

Graco 249028 Piston Rod Replacement Q Kit — Overview & Compatibility

Compatible Machines

The Graco 249028 Piston Rod Replacement Q Kit fits the following sprayers that use the matching pump lower. Always confirm your sprayer’s exact model and pump lower in the manual before ordering.

TexSpray Mark V (Standard) — common Mark V configurations that use this rod/piston assembly
TexSpray 5900 HD (Standard) — including select 5900 HD variants
GMAX II 5900 HD 3-in-1 (Kohler)
GMAX II 7900 HD 3-in-1 (Kohler)
IronMan 300E Hi-Boy (e.g., 256655)
IronMan 500G Hi-Boy (e.g., 256790)
TexSpray 5900 HD references often include 248699 and conversion packages 255630 / 255631 / 255954
TexSpray Mark V references often include 249903 / 249029 / 249904

Product Overview

The Graco 249028 “Q Kit Replacement, Rod, Piston” is a genuine OEM assembly designed to refresh the displacement pump’s piston rod and piston components. Replacing a worn rod/piston restores prime, pressure consistency, and finish quality without rebuilding the entire pump lower.

Key Features

OEM precision fit for select Graco TexSpray / GMAX II / IronMan models
Quick “Q Kit” format — replace the rod/piston assembly fast and get back spraying
Durable wear surfaces engineered for high-duty paint and texture applications
Restores performance when experiencing pressure drop, poor prime, or pattern issues

Key Specifications

Part Number	249028
Assembly Type	Q Kit (Rod + Piston assembly; related seals/packings as configured by OEM)
Typical Max Working Pressure	Up to 3,300 psi (227 bar) in applicable systems
Application	Airless paint / texture spraying on compatible Graco pump lowers
Compatibility Guidance	Verify by sprayer model and pump lower code in the owner’s manual

What’s Typically Included

Piston rod & piston assembly (OEM)
Associated wear components as defined for PN 249028

When to Replace

Chatter, loss of prime, or pressure instability
Visible rod scoring/wear or chronic packing leaks
Poor atomization despite good tip/filter maintenance

Install Notes & Best Practices

Confirm pump lower compatibility before purchase.
Inspect the sleeve/cylinder and packings for wear; replace if damaged to avoid premature failure.
Follow Graco service manual torque specs and procedures; test for leaks and proper prime after installation.

Frequently Asked Questions

Match your sprayer model and its pump lower (part/assembly code) to the 249028 fitment in your owner’s/service manual. If your lower differs, select the kit specified for that lower instead.

The Q Kit focuses on the rod/piston assembly so you can quickly restore performance. A full rebuild may include cylinder/sleeve and complete packing sets. Choose the scope based on wear condition and manual guidance.

It’s recommended to inspect sleeve/cylinder and packings. If the rod was worn or scored, related parts may also be damaged. Replacing them together often prevents repeat downtime.

Possibly, depending on the exact pump lower used in your configuration. Some Mark V Standard setups list 249028; ProContractor/HD may specify different kits. Check your parts list to be certain.

Look for loss of pressure, difficulty priming, excessive leaks, or poor atomization despite a clean filter and correct tip. These usually point to wear on the rod, piston, or packings.