Extend your Mercury engine’s life with this premium OEM LINK, STARTER LOCKOUT (SERIAL 00000000-00019910). Factory-engineered for durability in harsh marine conditions that destroy inferior parts.

Engineered to Mercury’s rigorous OEM standards, this component ensures reliable operation across all engine RPM ranges. Part number 91648M is manufactured to exact Mercury Marine factory specifications for precision installation and optimal performance. Constructed from premium marine-grade materials designed to withstand harsh saltwater and freshwater environments.

Smart boat owners know: buying cheap parts twice costs more than buying genuine Mercury once. Part 91648M delivers long-term value through superior materials and precision manufacturing.

Compatible Mercury Marine Engines

FITS: 20-25HP MARINER

• Fits MARINER 20-25HP engines
• Compatible HP: 20HP, 25HP
• Covers 16 serial number ranges
• Configurations: Outboard
• OEM genuine Mercury Marine part

COMPLETE SERIAL NUMBER COMPATIBILITY:

20HP Models

• 20HP OUTBOARD (Mariner)

25HP Models

• 25HP OUTBOARD (Mariner)

Not sure where to find your engine’s serial number? View our quick reference guide to locate it on your Mercury Marine engine.

Verification & Support

Questions about part 91648M? Use our parts finder tool to verify fitment yourself. Prefer to talk to an expert? Use the contact buttons at the bottom of this page to reach our team by text, call, or email

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