Graco 24W999 Displacement Pump

The Graco 24W999 Displacement Pump is an OEM fluid section for heavy-duty DutyMax GH/EH 230–300 sprayers, designed for high-pressure airless coating applications. Reliable and serviceable for long-term performance.

Part Number: 24W999
Fits: DutyMax GH/EH 230 & 300 Series, TexSpray GH 230DI & GH 300DI
Use: Architectural paints and coatings
Type: Complete OEM fluid section assembly
Brand: Graco – Original Equipment Part

Retail Price: $3690

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Description

OEM Fluid Section for DutyMax GH/EH 230–300 Series

Compatible Machines

The Graco 24W999 Displacement Pump (fluid section) is used on the following TexSpray/DutyMax models. Always confirm by serial/parts list for your exact configuration.

TexSpray DutyMax GH 230DI
TexSpray DutyMax GH 300DI
DutyMax GH 230 (regional/config variants)
DutyMax GH 300 (regional/config variants)
DutyMax EH 230 (electric-hydraulic series)
DutyMax EH 300 (electric-hydraulic series)

Graco 24W999 Displacement Pump

Overview

The 24W999 Displacement Pump is the complete fluid section for select Graco DutyMax sprayers. It is the heart of the sprayer that pressurizes coating material for high-pressure airless application of architectural paints and similar coatings.

OEM Graco assembly for reliability and correct fit.
Designed for professional, high-duty cycle spraying.
Serviceable design for routine packing/rod maintenance (per manual).

Key Details

Part Number	24W999
Component Type	Displacement Pump (Fluid Section)
System Type	Airless, high-pressure coating application
Primary Use	Architectural paints and compatible coatings (refer to sprayer manual for materials)
Fits	DutyMax GH/EH 230–300 series, incl. GH 230DI and GH 300DI (see list above)
Notes	Verify by model/serial; assemblies can vary by region/configuration.

What’s Typically Included

Factory-assembled fluid section (pump body, displacement rod/piston, packings as applicable)
Sealing elements specific to this assembly

When to Replace the Fluid Section

Loss of pressure or erratic pulsation despite functional valves/filters
Persistent leakage past packings or rod scoring
Excessive wear indicated during scheduled maintenance

Install & Care Tips

Follow the Graco service manual for torque specs and alignment.
Prime with compatible pump armor/storage fluid when storing.
Use correct filters and tip sizes to reduce premature wear.

Frequently Asked Questions

It fits select DutyMax GH/EH 230–300 series units, including GH 230DI and GH 300DI. Always check your unit’s parts list for confirmation by model and serial range.

Chronic pressure loss, leakage past packings, rod scoring, or erratic spray after routine valve/filter checks usually indicate a worn fluid section that should be replaced or rebuilt.

Yes—24W999 is an OEM Graco displacement pump assembly designed for proper fit and performance on listed DutyMax models.

Basic mechanical tools are typically sufficient, but follow the model-specific Graco service manual for safe depressurizing, torque specs, alignment, and re-priming procedures.

Use coatings approved for your specific DutyMax model (e.g., architectural paints). Refer to your sprayer manual for material compatibility and tip/filter recommendations.