Graco 249028 Piston Rod Replacement Q Kit
$406.08
$564.00
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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
Quantity
Genuine OEM Part
Fast Shipping (Order by 1 PM CST)
Easy Returns
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.
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