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Graco 4427-G Repair Kit with TC Seat and Plunger

The Graco 4427-G Repair Kit with TC Seat and Plunger is designed to restore proper sealing and smooth paint flow in compatible airless spray guns, helping eliminate leaks and inconsistent spraying.

  • Genuine repair kit for internal spray gun valve
  • TC seat improves sealing and reduces paint dripping
  • Helps restore consistent spray pattern and control
  • Fits Graco and Airlessco 400 Series spray guns

Retail Price: $86.75
You save: $7.19 (8.29%)
Our Price: $79.56
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Compatible Machines

  • Graco 400 Series Airless Spray Guns
  • ASM / Airlessco 400 Series Spray Guns
  • Contractor Airless Spray Guns using TC Seat & Plunger valve design

The Graco 4427-G Repair Kit with TC Seat and Plunger is a genuine replacement kit designed to restore proper sealing and performance in compatible airless spray guns. This kit replaces critical internal valve components that commonly wear over time due to high-pressure spraying and abrasive coatings.

If your spray gun is experiencing paint dripping, inconsistent spray patterns, or pressure loss when the trigger is released, replacing the seat and plunger with this kit can help bring the gun back to optimal working condition.

Key Features

Part Number 4427-G
Kit Type Repair Kit – TC Seat & Plunger
Application Airless Spray Gun Internal Valve Repair
Material TC (Teflon-Coated) Seat for improved sealing
Function Controls paint flow and prevents dripping

Why Replace the Seat & Plunger?

  • Eliminates paint dripping when trigger is released
  • Improves spray consistency and control
  • Restores proper internal sealing
  • Extends the service life of your spray gun

Frequently Asked Questions

The kit includes a TC seat and plunger assembly used inside compatible airless spray guns to regulate paint flow and sealing.

This repair kit is designed specifically for the spray gun assembly, not for the pump or entire sprayer unit.

Replacement is recommended when the spray gun begins to leak, drip, or produce inconsistent spray patterns due to worn internal valve components.

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