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Graco 164741 Air Piston for Double/Single Acting Spray Gun

Direct-fit Graco 164741 Piston, Air for select Single-Acting and Double-Acting spray guns—restores smooth, reliable air actuation.

  • Fits: 238377 (Single-Acting), 24G980 (Double-Acting)
  • System: RoadLazer RoadPak line-striping applications
  • Function: Air-driven piston for precise on/off control
  • OEM replacement: 164741 (piston only)

$419.99
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Compatible Machines

  • Graco 238377 — Single-Acting Paint Spray Gun
  • Graco 24G980 — Double-Acting Paint Spray Gun

Product Overview

The Graco 164741 Piston, Air is the air-actuated piston used inside select Graco spray guns (both Single-Acting and Double-Acting variants). It is commonly used with guns supplied in the RoadLazer RoadPak line-striping system. The piston converts compressed air into linear motion to reliably open/close the gun’s fluid mechanism.

What It Does

  • Provides the air-driven actuation force for precise trigger response.
  • Supports consistent on/off control for even paint application.
  • Direct replacement for worn or damaged pistons to restore factory performance.

Part Details

Attribute Detail
Part Number 164741
Item Name Piston, Air
Fits Gun Types Single-Acting & Double-Acting spray guns
Known Compatible Models Graco 238377 (Single-Acting), Graco 24G980 (Double-Acting)
System Use Road-marking / line-striping (e.g., RoadLazer RoadPak)

Installation & Tips

  • Depressurize air and fluid before service; follow the gun manual procedures.
  • Inspect seals and the cylinder bore when replacing the piston; replace worn seals as needed.
  • Lightly lubricate moving surfaces with manufacturer-approved lubricant during reassembly.

Frequently Asked Questions

Yes. It is specified for select Single-Acting (e.g., 238377) and Double-Acting (e.g., 24G980) Graco spray guns.

Check your spray gun’s parts manual for the exact piston part number. If your gun model lists 164741 as “Piston, Air,” it will be a direct fit. When in doubt, provide the gun model number for verification.

This listing is for the Piston, Air only. Seals and other wear parts are typically sold separately unless your gun manual specifies a combined kit.

Keep air supply clean and dry, follow recommended lubrication intervals, and inspect the air cylinder and seals periodically to maintain smooth actuation and long service life.

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