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Graco 331051 LP Suction Seat Assembly Kit

The Graco 331051 LP Suction Seat Assembly Kit is a genuine replacement part used in low-pressure fluid pump systems of Graco airless sprayers. It helps maintain proper suction and consistent material flow during operation.

  • Designed for LP suction valve assemblies
  • Supports smooth priming and steady spray performance
  • Helps prevent suction loss and pressure fluctuations
  • OEM Graco component for reliable fit and durability

Retail Price: $272
You save: $34 (12.50%)
Our Price: $238
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Compatible Machines

  • Graco professional airless sprayers equipped with Low-Pressure (LP) suction pump assemblies
  • Graco contractor-grade sprayers using LP fluid pump suction valves

Product Overview

The Graco 331051 LP Suction Seat Assembly Kit is a genuine replacement service kit designed for use in Graco airless paint sprayers that utilize a low-pressure suction pump system. This component plays a critical role inside the pump by forming a reliable seal at the suction valve, helping the sprayer draw material smoothly and maintain consistent pressure during operation.

Key Functions & Benefits

  • Restores proper sealing within the LP suction valve assembly
  • Helps prevent loss of prime and inconsistent paint flow
  • Supports efficient material intake from the suction tube
  • OEM Graco part for dependable fit and performance

Where This Kit Is Used

This suction seat assembly kit is installed inside the fluid pump of compatible Graco airless sprayers. It is commonly replaced during pump maintenance or when addressing suction-related issues such as poor priming, pulsation, or reduced spray consistency.

Technical Summary

Part Number 331051
Component Type LP Suction Seat Assembly
Application Airless paint sprayer fluid pumps
OEM Graco genuine replacement part

Frequently Asked Questions

It forms a seal inside the low-pressure suction valve, allowing the pump to draw paint or coating material efficiently without air leaks or pressure loss.
Replacement is recommended if the sprayer struggles to prime, loses suction, pulses during spraying, or during scheduled pump maintenance.
No. It is designed specifically for Graco airless sprayers that use an LP suction-style fluid pump. Always verify compatibility using your sprayer’s parts manual.

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