1623-2511A1 Fits Mercruiser IA/IB/IC Stern Drive Lower Unit Gearcase

Mercury part number 1623-2511A1.

Lower unit gear case

This part is for use on some Mercruiser IA/IB/IC EX Shift stern drives from 1965 and 1966.

It is a new OEM factory part. It may show some signs of shelf wear (dust/dirt/scuffs).

Please check the part numbers for your fitment needs.

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