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Metal retainer ring compatible with Speedaire 21AC17

SPEEDAIRE

SPEEDAIRE PN21AA636G Retainer compatible with 21AC17

SKU CH-5AWT-GFFSP

Retainer compatible with Grainger part 21AC17 for Speedaire air compressors

  • Genuine SPEEDAIRE retainer built for reliable compressor performance
  • Designed to fit Grainger part 21AC17 exactly
  • New condition ensures full service life from installation
  • Simple component keeps air system sealed and efficient
  • Prop 65 notice included for California compliance awareness

SPEEDAIRE PN21AA636G Retainer

This SPEEDAIRE PN21AA636G retainer is a replacement component designed for air compressors and vacuum pumps. It is intended for technicians and maintenance teams who need a direct-fit part to keep their equipment running. The item is supplied new and carries California Proposition 65 notices for cancer and reproductive harm.

Replaces worn retainer on 21AC17 units

This retainer is compatible with Grainger part number 21AC17 and the Speedaire brand. It upgrades or restores the original hardware when the existing retainer shows wear, damage or loss during service. The jump is worth it when the compressor or pump exhibits looseness or misalignment that a new retainer can correct.

Simple drop-in installation

Installation consists of removing the old retainer and fitting this compatible part in its place. No special tools are required beyond standard workshop equipment. What usually goes wrong is ordering the wrong part number, so verify the 21AC17 compatibility before fitting. The product ships directly from Zoro.

Highlights

  • Genuine SPEEDAIRE retainer built for reliable compressor performance
  • Designed to fit Grainger part 21AC17 exactly
  • New condition ensures full service life from installation
  • Simple component keeps air system sealed and efficient
  • Prop 65 notice included for California compliance awareness

Specifications

BrandSPEEDAIRE

Questions about this item

Which compressor part does the PN21AA636G retainer fit?

The retainer is compatible with Grainger part number 21AC17 and Speedaire brand compressors.

How do I install the PN21AA636G retainer, and what step is often missed?

Remove the old retainer, align the new PN21AA636G with the housing slots, and secure it fully; the step often missed is confirming the retainer seats completely before reassembly.

What maintenance or replacement will the PN21AA636G retainer need later?

Inspect the retainer during routine compressor service for wear or deformation; replace it if it no longer holds components securely or shows cracking.

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