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Graco 166696 Stem Valve Ball

The Graco 166696 Stem Valve Ball is a genuine internal stem component used in specific Graco ball-valve assemblies to restore proper sealing and smooth fluid control.

  • Ensures correct valve movement
  • Maintains fluid sealing inside valve body
  • Fits ball-valve assemblies listed in Graco Manual 306861

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Graco 166696 Stem Valve Ball – Detailed Replacement Part Information

Compatible Machines

This part is used inside specific Graco ball-valve assemblies. Only machines that use those valve bodies will accept the Graco 166696 Stem Valve Ball. Always confirm by checking your sprayer’s valve assembly part number in its service manual.

  • Graco units equipped with ball-valve assemblies listed in Graco Parts Manual 306861
  • Sprayers using the valve series where internal stem reference number (Ref. 10) corresponds to 166696
  • Any Graco fluid-handling system utilizing the same ball-valve configuration shown in that parts manual

Product Overview

The Graco 166696 Stem Valve Ball is a genuine internal stem component used within select Graco ball-valve assemblies. It helps maintain smooth valve operation, proper sealing, and consistent fluid control in high-pressure applications. Since it is an internal part, confirming the correct valve body is essential before ordering.

Part Number 166696
Part Type Stem Valve Ball (Internal Component)
Used In Specific Graco Ball Valve Assemblies (per Manual 306861)
Function Controls internal fluid passage and sealing inside ball-valve assemblies

Why This Component Matters

This stem is essential for restoring proper valve movement and sealing inside compatible ball-valve systems. A worn stem can lead to restricted flow, internal leakage, or inconsistent pressure. Replacing it with the correct genuine part ensures optimal system reliability.

Frequently Asked Questions

It acts as the internal stem inside certain Graco ball-valve assemblies, helping regulate fluid movement and maintain sealing within the valve body.

Check your sprayer’s parts manual and verify the ball-valve assembly breakdown. If the internal stem is listed as part number 166696 (Ref. 10), then this component is compatible.

No, this is only the internal stem component. Complete ball-valve assemblies include multiple parts such as the valve body, ball, seat, seals, and stem.

Installation is straightforward for users familiar with Graco fluid-path components. However, professionals or service technicians are recommended when working on high-pressure systems.

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