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Graco 166985 PTFE O-Ring Packing

Graco 166985 PTFE O-Ring Packing is a durable seal used in pump or valve areas of select Graco sprayers. Ideal for maintenance and leak prevention.

  • PTFE material for high chemical and temperature resistance
  • Designed for sealing in high-pressure spray applications
  • Verify part number 166985 in your sprayer’s parts manual before ordering

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Graco 166985 PTFE Packing O-Ring

Compatible Machines

This Graco 166985 PTFE O-Ring Packing is a high-durability sealing component used in multiple Graco spray systems. Below is a general compatibility overview. Always verify with your machine’s parts manual before ordering.

  • Compatible with select Graco airless sprayers requiring a PTFE O-ring in pump or valve assemblies
  • Used in various industrial and contractor-grade Graco systems (model-specific verification required)

Product Overview

The Graco 166985 PTFE Packing O-Ring is engineered for sealing performance in high-pressure and chemically demanding spray environments. Made from PTFE (Teflon), it resists solvents, heat, and wear—making it ideal for sprayer maintenance and pump rebuilds.

Part Number 166985
Material PTFE (Teflon)
Function Provides a durable seal within pump or valve assemblies
Usage Ideal for rebuilds, maintenance, and leak prevention

Key Features

  • High chemical resistance for solvent-based coatings
  • Withstands high temperatures and pressure cycles
  • OEM-grade PTFE for long-lasting sealing performance
  • Suitable for pump and valve service applications

Frequently Asked Questions

It is made from PTFE, providing chemical, temperature, and wear resistance suitable for demanding spray systems.

Check your sprayer’s parts manual or exploded pump diagram. Match the part number 166985 to the seal location in your specific model.

It is commonly used in pump or valve sealing applications within certain Graco contractor-grade and industrial sprayers.

PTFE offers superior resistance to solvents, heat, and abrasion. It is preferred when spraying harsh coatings or operating at high pressure.

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