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Graco 164186 Painted Air Motor Cylinder

The Graco 164186 Cylinder, Air Motor, Painted is the OEM sleeve for select Monark air motors—ideal when restoring stroke efficiency and sealing. Confirm your air motor model before ordering.

  • Direct OEM fit: Monark motors (e.g., 20G205997, 206-955, 205-997, 222-791)
  • Painted finish for durability and OEM appearance
  • Supports piston reciprocation and smooth operation
  • Match by exact part no.: 164186

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Compatibility & Key Fitment (Monark® Air Motors)

This Graco 164186 Cylinder, Air Motor, Painted fits machines that use specific Graco Monark® air motor assemblies. Check your air motor model against the list below.

  • Monark Air Motor Assembly 20G205997
  • Monark Air Motor 206-955 (Series K / G)
  • Monark Air Motor 205-997 (Series G)
  • Monark Air Motor 222-791 (Series A)

Part Details

Part Number 164186
OEM Description Cylinder, Air Motor, Painted
System Type Compressed-air driven Monark air motor assemblies
Function Houses the reciprocating piston; critical to stroke efficiency & sealing
Finish Factory painted OEM finish
Typical Applications Industrial paint/fluids transfer pumps that use Graco Monark air motors

Highlights

  • Genuine-style Graco 164186 cylinder for Monark air motors
  • Precision bore supports piston motion and sealing performance
  • Painted exterior matches OEM look and corrosion protection
  • Direct replacement—use with the correct air motor model/series

Installation Notes

  • Disassemble the air motor per service manual; keep components clean and lint-free.
  • Lift the old cylinder straight off the piston to avoid scoring the cylinder wall.
  • Inspect seals, guides, and piston wear parts while the motor is open; replace if worn.
  • Reassemble to spec; verify smooth stroke before returning to service.

Frequently Asked Questions

It fits machines that use specific Monark air motors. Confirm your air motor model/series:
  • 20G205997 Monark Air Motor Assembly
  • 206-955 Monark (Series K / G)
  • 205-997 Monark (Series G)
  • 222-791 Monark (Series A)
Always verify with your serial/parts list before ordering.

The “painted” label refers to the exterior finish. Compatibility depends on the exact part number. If your parts list calls for 164186, the painted OEM replacement is the correct selection. Match the part number rather than finish alone.

Best practice is to inspect and replace associated wear items (seals, guides, O-rings, fasteners) if worn or due for service. Follow the service manual for torque specs, lubrication, and reassembly checks to ensure smooth stroke and sealing.

 

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