Don’t miss another weekend. This genuine Mercury Marine **PROP NUT KIT** ships fast and installs easily – get back on the water where you belong.

Precision-engineered for Mercury outboards, this repair kit ensures reliable operation across all engine RPM ranges. Part number 69578Q1 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.

Factory parts exist for a reason – they work. Part 69578Q1 undergoes rigorous Mercury Marine quality testing that aftermarket manufacturers skip. The result? Reliable performance season after season.

FITS: 25-30HP MARINER, MERCURY (EFI)

• Fits MARINER, MERCURY 25-30HP engines
• Compatible HP: 25HP, 30HP
• Model types: EFI
• Covers 24 serial number ranges
• Configurations: Outboard
• OEM genuine Mercury Marine part

COMPLETE SERIAL NUMBER COMPATIBILITY:

25HP Models

• 25HP OUTBOARD (Mariner): 0G760300-0T408999, 0P017000-0P153499
• 25HP OUTBOARD (Mercury): 0G760300-0T408999, 0P017000-0P153499

30HP Models

• 30HP EFI (Mariner): 0P153500-0P400999, 0T409000-1B226999
• 30HP EFI (Mercury): 0P153500-0P400999, 0T409000-1B226999
• 30HP OUTBOARD (Mariner): 0G760300-0T979999, 0P017000-0P325499, 0T980000-0T999999, 0P153500-0P400999, 0T409000-1B226999
• 30HP OUTBOARD (Mercury): 0G760300-0T979999, 0P017000-0P325499, 0T980000-0T999999, 0P153500-0P400999, 0T409000-1B226999

Need help finding your serial number? Check our serial number location guide for step-by-step instructions on locating it on your engine.

Not sure if part 69578Q1 fits your engine? Try our parts finder tool – it’s quick and easy. Need expert help? Contact us using the buttons at the bottom of this page – text, call, or email, whatever works best for you.

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