Graco 243190 Intake Seat Repair Kit

The Graco 243190 Intake Seat Repair Kit helps restore prime and suction on worn Graco airless sprayer pumps by replacing critical intake valve components.

Includes carbide seat, inlet ball, spacer, and O-ring
OEM-grade parts for durability and proper sealing
Fits fluid sections 243-183, 243-189, and 244-195
Fixes loss of prime, suction issues, and backflow leaks

Retail Price: $67.5

You save: $5.13 (7.60%)

Our Price: $62.37

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Description

Compatible Machines & Quick Overview

The Graco 243190 Intake Seat Repair Kit restores suction and prime on pumps that use the matching intake valve assembly. Check your sprayer’s fluid section (e.g., 243-183, 243-189, 244-195) for a safe match before ordering.

Compatible Machines

Fits Graco® pumps using intake valve assemblies found in the fluid sections listed above, including the following popular models and variants:

Ultra Max 695 (select configurations using 243-183 / 243-189 / 244-195 fluid sections)
ST Pro 395 — Hi-Boy / Lo-Boy
ST Pro 455 — Hi-Boy / Lo-Boy / Complete variants
ST Pro 495 — Hi-Boy / Lo-Boy
495 Duron Pro / Performance Plus / Pro (e.g., 232990)
Other compatible legacy units using the above fluid sections

What’s in the Kit

Component	Purpose
Carbide Seat	Provides the hardened sealing surface for the inlet ball to ensure reliable check-valve action.
Lower Inlet Ball	Seals against the seat during pressure stroke; lifts during suction to draw material in.
Ball Guide Spacer	Centers/alignment piece that helps the ball track correctly for consistent sealing.
Lower Packing O-Ring	Seals the intake assembly to prevent air leaks that cause loss of prime.

Key Benefits

Restores suction & prime on tired pumps exhibiting intake leakage.
OEM-grade parts for fit and durability in demanding spraying.
Quick service—no full fluid-section swap required in many cases.

Install & Use Tips

Confirm your fluid section number (e.g., 243-183, 243-189, 244-195) matches this kit.
Clean the intake cavity thoroughly; remove all old debris and inspect the ball guide cage.
Seat orientation matters—follow torque and assembly steps in the Graco manual.
Prime and test at low pressure first; verify no air ingestion or leakage at the intake.

Quick Tech Summary

Part Number	243190
Assembly Location	Intake (suction) side of the pump’s fluid section
Typical Symptoms Solved	Loss of prime, poor suction, inlet check leaking/back-flow
Compatibility Check	Match to fluid section (e.g., 243-183 / 243-189 / 244-195) and model variant

Frequently Asked Questions

Locate your sprayer’s fluid section number on the pump tag or in the parts manual. If it’s one of the known matches (e.g., 243-183, 243-189, 244-195), this kit is designed for that intake valve assembly. When in doubt, cross-reference the exploded view for the intake check components.

Common signs include loss of prime, visible back-flow at the intake, and difficulty drawing material even after proper priming. Wear on the seat or ball prevents a complete seal, reducing suction and output pressure stability.

Thoroughly clean the intake cavity, install the seat in the correct orientation, use the new O-ring, and follow the manual’s torque guidance. After assembly, prime at low pressure and verify sealing before spraying at production pressure.

Typically no additional sealant is required on the seat interface. If the manual calls for a specific thread treatment on related fasteners, use only what’s specified.

Strain materials, flush promptly after use, avoid running the pump dry, and keep inlet filters clean. Abrasive or heavily filled coatings accelerate wear; inspect the intake check periodically.