Graco 223565 Piston Stud Assembly

The Graco 223565 Piston Stud Assembly is a durable internal pump component designed for stable fluid control and long service life.

Stainless-steel construction
Precision-machined seating
Supports high-pressure pump systems
Used in GH433, President 30:1, EH433 & select Monark pumps

Retail Price: $339

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Our Price: $312.73

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Description

Piston Stud Assembly Details & Compatibility

Compatible Machines

This Graco 223565 Piston Stud Assembly is designed for selected industrial and heavy-duty Graco pump systems. Below is the verified compatibility list:

GH433 Hydraulic Sprayer
President 30:1 Pneumatic Pump Units
EH433 Series Sprayers
Selected 14:1 & 15:1 Monark Pumps (specific configurations only)

Product Overview

The 223565 Piston Stud Assembly is a stainless-steel internal pump component designed to maintain a strong seal, stable fluid movement, and long service life inside the sprayer’s displacement pump section. Its hardened seating surface provides consistent performance under demanding, high-pressure operating conditions.

Key Features

Durable stainless-steel construction for extended service life
Precision-machined seating for reliable pump cycling
Supports stable operation in high-pressure fluid systems
Engineered for industrial paint sprayers and pneumatic pump assemblies

Technical Information

Part Number	223565
Material	Stainless Steel with Hardened Seat
Function	Piston stud / piston valve component for fluid section
Application Type	Industrial Sprayers & Pneumatic Pump Systems

Frequently Asked Questions

It acts as the primary piston valve component inside the fluid pump section, enabling proper intake and discharge of material during each pump cycle.

No. It is specifically matched to the GH433 model. Other GH-series units use different piston and valve assemblies, so compatibility must be confirmed by model number.

While many technicians can install it themselves, precise seating and torque are important. Professional installation is recommended for optimal pump performance.