Genuine is usually preferable when

  • Flight safety is directly involved.
  • Firmware, battery management or electronics matter.
  • Compatibility is complex.
  • The genuine part remains readily available.

Aftermarket can make sense when

  • Genuine parts are discontinued.
  • The component is non-critical.
  • A reputable compatible alternative has strong evidence.
  • An older aircraft would otherwise be uneconomic to repair.

Other sourcing classes

Used genuine

May solve discontinued-part scarcity, but inspect condition and history.

New old stock

Unused does not always mean fresh; battery age and storage matter.

Donor aircraft

Useful for rare assemblies only when exact model and condition are clear.

Apply this to Mini 4 Pro

Buying guidance

Compatibility before supplier links.

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