Graco 288468 Displacement Pump

Graco 288468 Displacement Pump is a genuine OEM pump lower built for high-performance GH230 and GH300 sprayers, ensuring consistent pressure and long service life.

Fits: GH230, GH300
Maximum Pressure: 3,300 psi
Factory OEM quality and durability
Restores prime and smooth spray pattern
Ideal for heavy-duty, high-output spraying

List Price: $2400

You save: $384 (16.00%)

Sale Price: $2016

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Description

Precision Replacement for Heavy-Duty GH-Series Sprayers

Compatible Machines

Graco GH230 Gas Hydraulic Airless Sprayer
Graco GH300 Gas Hydraulic Airless Sprayer

About the Graco 288468 Displacement Pump

The Graco 288468 Displacement Pump (pump lower assembly) is a genuine OEM replacement for select GH-series sprayers. It restores prime, pressure consistency, and material delivery performance on high-output rigs used for large commercial and industrial jobs.

Key Specifications

Part Number	288468
Component Type	Displacement Pump / Pump Lower Assembly
Compatibility	GH230, GH300 (see list above)
Max Working Pressure	Up to 3,300 psi (22.8 MPa)
Fitment Type	Direct replacement, OEM grade
Typical Use	High-production airless spraying of architectural, protective, and commercial coatings (within sprayer rating)

Why Choose this OEM Pump Lower

Restores performance—recovers prime, pressure, and smooth stroke on worn systems.
OEM reliability—factory-spec sealing surfaces and clearances for long service life.
Reduced downtime—bolt-in replacement designed for GH-series mounting geometry.
Consistent finish—stable flow helps maintain pattern uniformity at tip.

Installation & Care Guidelines

Depressurize and flush the system per safety procedures before disassembly.
Inspect packings, ball/seat, and rod for wear; replace complementary seals as needed.
Use recommended lubricants on packings and threads during reassembly.
Prime slowly and check for leaks; verify pressure control and spray pattern under load.
Maintain filtration (manifold/gun) to protect the new pump lower.

Frequently Asked Questions

It is specified for GH230 and GH300. For any other unit, verify part numbers in the official parts manual before purchase.

Use coatings within the sprayer’s rating (e.g., architectural paints, primers, elastomerics, select protective coatings). Always follow your sprayer’s manual for approved materials and tip sizes.

No electronic calibration is required. After installation, prime the system, check for leaks, and set operating pressure under typical spray load to confirm stable performance.

Keep filters clean, avoid dry-running, use proper lubricants, flush compatible solvents after use, and store the sprayer with pump protector per the manual.

Up to 3,300 psi (22.8 MPa), subject to the limits of your specific sprayer model and hose/tip ratings.