MerCruiser Shift Shaft Bushing Assembly 65529-1 (OEM)

The 65529-1 Shift Shaft Bushing Assembly is a genuine Mercury MerCruiser OEM component designed specifically for Alpha One Gen II sterndrives. This assembly supports and seals the shift shaft where it enters the drive housing, ensuring precise shifting and proper sealing.

Fitment Overview

This OEM part replaces and supersedes earlier Mercury / MerCruiser part numbers including 815921A2, 815921A6, 815921A8, 815921A10, 815921A17, and 815921A21.

All of these part numbers correspond to the same shift shaft bushing assembly used in Alpha One Gen II sterndrive applications.

Compatibility

This component is used in Alpha One Gen II drives across a wide range of marine applications.

Fits These Serial Ranges

Common applications include Alpha One Gen II sterndrives beginning approximately at serial range:

• 0D469859 and newer Alpha One Gen II production

Important: Always confirm compatibility using your sterndrive serial number or OEM part number.

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View Pro Marine Shift Shaft Bushing Assembly 65529

Part Numbers and Cross References

What This Part Is Used For

This shift shaft bushing assembly supports the shift shaft and seals the entry point into the sterndrive housing. It ensures proper alignment and prevents water from entering the drive.

• Maintains shift shaft alignment
• Provides sealing at the drive housing
• Ensures smooth gear engagement
• Helps protect internal drive components

Using a genuine OEM part ensures proper fit, sealing, and long-term durability.

System Function and Connections

• System Type: Sterndrive shifting system
• Component Type: Shift shaft bushing assembly
• Location: Alpha One Gen II drive housing

FAQ

Is this a genuine Mercury part?
Yes, this is an OEM Mercury MerCruiser component.

What does this part fit?
It fits MerCruiser Alpha One Gen II sterndrives.

Does this replace older part numbers?
Yes, it replaces 815921A2, A6, A8, A10, A17, and A21.

Why choose OEM?
OEM parts are manufactured to exact specifications for proper fit and long-term reliability.

Searchable Part Numbers

65529-1, 815921A21, 815921A10, 815921A8, 815921A6, 815921A2, MerCruiser Alpha One Gen II shift shaft bushing