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Harkers Island, NC 28531
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Shaft Upper Shift for Mercruiser 1973-1990 Transom 45589A3

  • GLM21420 is currently unavailable and is replaced by..
  • Part #: BPI21420


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This is the upper shift shaft used in a Mercruiser stern drive. It fits models MC-1/R/MR/Alpha One, 1991 and prior. This item replaces OEM: # 45589A3.

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