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Mercury MerCruiser 45-42634 ALPHA ONE Propeller Shaft Aqua Power 1846 Sierra 18-2180
- Mercury MerCruiser 45-42634 ALPHA ONE Drive Shaft
- For Mercury Marine Outboard Motors and MerCruiser Sterndrive Outdrive Units
- MerCruiser Sterndrive Outdrive Units:
- R/MR/ALPHA ONE
- For all MR/ALPHA Units and older units which have been retro-fitted with MR/ALPHA lower units
- Manufacturer: Sierra by Aqua Power
- Model Number: Drive Shaft
- Part Number: 18-2180, 1846
- Also Known As: Mercury MerCruiser 45-42634