Graco 288821 Pump Piston Rod
$285.48
$390.00
Save 27%
In Stock
The Graco 288821 Pump Piston Rod is a genuine OEM replacement part designed for heavy-duty TexSpray and DutyMax sprayers. It ensures reliable pressure and smooth performance in demanding applications.
- Fits GH 230, GH 300, and DH 230DI sprayers
- Used in pump models 288819, 24M629, and 24X001
- Durable Chromex surface for long-lasting wear resistance
- OEM precision ensures perfect fit and consistent spray output
Quantity
Genuine OEM Part
Fast Shipping (Order by 1 PM CST)
Easy Returns
Overview & Compatibility for the Graco 288821 Pump Piston Rod
Compatible Machines
This OEM rod fits select TexSpray DutyMax and GH/DH series sprayers that use the pumps listed below.
- TexSpray DutyMax GH 230 DI ProContractor
- TexSpray DutyMax DH 230DI ProContractor
- Graco GH 230 (units that use pump 288819/24M629/24X001)
- Graco GH 300 (units that use pump 288819/24M629/24X001)
- Graco DH 230DI (units that use pump 288819/24M629/24X001)
What is it?
Graco 288821 Pump Piston Rod (often referenced as a Chromex piston rod) is the OEM internal rod in the displacement pump. It drives the piston to create suction and discharge, restoring consistent pressure and spray pattern when replacing a worn rod.
Fits These Pump Models
| Pump Model | Common Use / Notes |
|---|---|
| 288819 | Displacement pump used on select GH/DH/DutyMax units |
| 24M629 | Replacement/variant pump assembly in GH/TexSpray lines |
| 24X001 | Fluid pump where 288821 is the specified piston rod |
Why choose this OEM rod
- OEM quality for proper fit, durability, and pressure performance
- Helps restore priming, pressure stability, and smooth stroke
- Compatible with multiple DutyMax/GH/DH pump assemblies (see table)
What’s in the box
- 1 × Graco 288821 Pump Piston Rod
Service notes
- Depressurize and follow the safety/repair steps in your sprayer’s manual.
- Inspect piston/rod, sleeve, check balls, and packings; replace worn parts together for best results.
- After installation, flush and pressure-test for leaks and stroke smoothness.
Frequently Asked Questions
It fits GH 230 units that use pump models 288819, 24M629, or 24X001. Check your data plate or parts manual to confirm the pump on your exact sprayer variant.
This page is for the piston rod only. Repair kits may include additional items like packings, seals, and check components. If your rod is scored and your packings are worn, consider replacing both for best performance.
“Chromex” refers to Graco’s hardened surface treatment used on certain wear parts for improved durability. Always match by the part number 288821 for compatibility.
Common listings include TexSpray DutyMax GH 230 DI ProContractor and TexSpray DutyMax DH 230DI ProContractor. Verify your pump model to be sure.
Follow the torque/assembly guidance in your Graco service manual. Some piston components ship with pre-applied thread patches—do not remove these. Replace damaged packings and o-rings during reassembly.
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