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Graco 166618 Spring Cap

The Graco 166618 Spring Cap is an OEM replacement cap designed to hold the internal spring securely in place for proper regulator performance.

  • Ensures correct spring alignment
  • Supports stable pressure regulation
  • Fits Graco Regulator Model 204500

$138.18
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Graco 166618 Spring Cap – Genuine Replacement Part

Compatible Machines

This Graco 166618 Spring Cap is confirmed for use in the following equipment. Listed below are the verified compatible assemblies:

  • Graco Regulator Model 204500 (Confirmed fit)
  • Other Graco fluid-handling and pump assemblies (verify with parts schematic)

Product Overview

The Graco 166618 Spring Cap is a precision-machined replacement cap designed to securely hold and protect the internal spring in select Graco regulator and pump assemblies. It maintains proper spring alignment, supports consistent pressure control, and helps ensure smooth, reliable equipment operation.

Key Features

  • Durable OEM component for long-term reliability
  • Maintains spring seating inside regulator/pump assemblies
  • Ensures consistent pressure and smooth performance
  • Suitable for select Graco fluid-handling systems

Technical Notes

  • Always depressurize equipment before replacing parts
  • Inspect the internal spring for wear when replacing the cap
  • Use only genuine OEM components for maximum equipment life

Frequently Asked Questions

Frequently Asked Questions

The cap secures and protects the internal spring, keeping it properly seated and aligned. This helps maintain stable pressure control and smooth operation of the regulator or pump.

No. This part is specifically confirmed for Graco Regulator Model 204500. Other units may use different spring caps, so always check your machine’s schematic before purchasing.

Check your equipment’s parts manual for the exact part number. If the manual lists 166618 under the regulator or spring assembly, the part is compatible.

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