Mercury 8M0137263 MerCruiser Alpha One Gen II Upper Shift Shaft

Mercury-MerCruiser 8M0137263 Upper Shift Shaft for Alpha One Gen II

The Mercury-MerCruiser 8M0137263 Upper Shift Shaft is a genuine OEM Mercury-MerCruiser replacement part for compatible Alpha One Gen II units. This upper shift shaft is engineered to help restore proper shifting performance where the original component is worn, damaged, or due for replacement.

Designed to Mercury-MerCruiser specifications, this replacement shift shaft helps support proper fit, function, and performance in compatible Alpha One Gen II applications. Always verify fitment by drive model, serial number, parts diagram, or existing part number before ordering.

Product Features:

• Genuine OEM Mercury-MerCruiser upper shift shaft
• Designed for compatible Alpha One Gen II units
• Helps restore proper shift system function
• Built to Mercury-MerCruiser fit and performance standards
• Direct replacement where part number 8M0137263 is specified
• Supersedes Mercury part number 816685
• Interchangeable with Sierra 18-3749

Product Details:

• Brand: Mercury-MerCruiser
• Manufacturer Part Number: 8M0137263
• Part Type: Upper Shift Shaft
• Application: Alpha One Gen II units
• Serial Number Range: 2A629407 and up
• Supersedes: 816685
• Interchange: Sierra 18-3749

Fits:

• MerCruiser Alpha One Gen II units, serial number 2A629407 and up

Fitment Note: Upper shift shaft fitment should be verified by drive model, serial number, parts diagram, or existing part number before ordering. Please confirm this part is correct for your MerCruiser Alpha One Gen II application before purchasing.

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