Please wait while we process your order...

Product successfully added to your cart.
Cart Image

Quantity in Cart: 1

Continue Shopping Shopping Cart
Item removed from Cart
X
 
×

sprayersandparts Logo

Product Image

Graco 166779 Seat Valve

Genuine Graco 166779 seat valve designed for selected Graco metered-dispense and precision fluid valve assemblies. Ideal for restoring leak-free shut-off and stable system pressure.

  • OEM internal valve seat component
  • Helps prevent internal fluid bypass and leakage
  • Replace when sealing surface is worn or damaged

$358.61
0
Based on 0 reviews
5 ★
0%
4 ★
0%
3 ★
0%
2 ★
0%
1 ★
0%

Graco 166779 Seat Valve – OEM Replacement Part

Compatible Machines

This Graco 166779 Seat Valve is used in specific Graco metered-dispense and precision fluid valve assemblies. Confirm your sprayer or system’s parts manual to ensure correct compatibility.

  • Certain Graco Metered-Dispense Pumps
  • Selected Graco Precision Fluid Valve Assemblies

Product Details

The 166779 Seat Valve is a precision-machined internal sealing component designed for Graco valve assemblies. It provides a durable sealing surface for accurate fluid shut-off, helping prevent internal leakage and ensuring stable pressure regulation.

Part Number Description Function Usage Notes
166779 Seat Valve Provides internal sealing surface for the valve assembly Replace when worn, scratched, or leaking

Key Features

  • Precision-engineered for accurate sealing performance
  • Maintains proper valve shut-off and prevents internal fluid bypass
  • Durable OEM-grade construction
  • Direct replacement for compatible Graco valve systems

When to Replace

  • Valve leakage or inconsistent shut-off
  • Visible wear on the sealing surface
  • Erratic pressure output from the fluid system

Frequently Asked Questions

It serves as the internal sealing point in a Graco valve assembly, allowing the system to maintain proper shut-off and prevent internal leaks.

Check your pump or sprayer parts manual. If the valve assembly lists part number 166779 as its seat component, then it is the correct match.

Replace it when you notice leakage, loss of pressure consistency, or when the sealing surface is worn or damaged.

Subscribe to our newsletter to get exclusive discounts and new theme launches right in your inbox.

You may unsubscribe at any moment. For that purpose, please find our contact info in the legal notice.

Payment Method   Payment Method   Payment Method   Payment Method 

ADDRESS