Graco 287388 Piston Valve

Graco 287388 Piston Valve is an OEM internal pump component that controls fluid flow inside the displacement pump, ensuring consistent pressure and reliable sealing during spraying.

Genuine Graco replacement part
Used in Endurance and Endurance MaxLife™ displacement pumps
Supports smooth piston movement and steady material delivery

Retail Price: $58.75

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Description

Compatible Machines

Graco 24W996 Endurance Displacement Pump
Graco 24W998 Endurance MaxLife™ Displacement Pump
Graco 24W999 Displacement Pump
Selected Graco GH Series Airless Sprayers
Selected Graco EH Series Hydraulic Sprayers

Product Overview

The Graco 287388 Piston Valve is a genuine OEM internal pump component designed for use in high-pressure airless and hydraulic spray systems. This valve plays a critical role in regulating fluid flow inside the displacement pump by opening and closing with each piston stroke, ensuring consistent pressure, smooth material delivery, and reliable sealing during operation.

Key Features

Part Number	287388
Part Type	Piston Valve
Brand	Graco
Application	Displacement Pump Fluid Control
Function	Controls intake and discharge flow within the pump chamber
Material Handling	Paints, Coatings, and High-Viscosity Fluids

Why Use a Genuine Graco Piston Valve?

Maintains proper sealing and pressure balance
Ensures smooth piston movement and reduced wear
Designed for high-pressure, continuous-duty applications
Exact fit for Graco displacement pump assemblies

Frequently Asked Questions

It controls the movement of fluid inside the displacement pump by allowing material to enter and exit the pump chamber during each piston stroke, maintaining consistent spray pressure.

Yes, the Graco 287388 Piston Valve is an OEM part manufactured to meet original equipment specifications for fit, durability, and performance.

Replacement is recommended if you experience loss of pressure, pulsation, material backflow, or reduced pump efficiency due to wear or sealing failure.

No. This piston valve is designed for specific Graco displacement pump models. Always verify compatibility with your pump’s parts diagram before installation.