This is a replacement hard drive temperature sensor for the 21.5-inch iMac. These are specific to the brand hard drive you are using. If you are replacing your hard drive, you may need to replace this as well if you are changing brands.

Apple Part Number:
Manufacturer Part Number:
593-0998 A

Starting at: $15.75

Conditions Available:

  • $29.95 New
  • $15.75 Used
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