“O” RING, SHIFT SHAFT BUSHING – 25439

Maintain peak Mercury Marine performance with this factory-engineered “O” RING, SHIFT SHAFT BUSHING. Designed for precision installation and built to handle demanding marine environments season after season.

Designed and manufactured to Mercury Marine OEM standards, this seal ensures reliable operation across all engine RPM ranges. Part number 25439 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 25439 delivers long-term value through superior materials and precision manufacturing.

Compatible Mercury Marine Engines

FITS: 0-115HP MARINER, MERCRUISER, MERCURY

• Fits MARINER, MERCRUISER, MERCURY 0-115HP engines
• Compatible HP: 0HP, 100HP, 105HP, 110HP, 115HP
• Covers 24 serial number ranges
• Configurations: Jet Drive, Outboard, Sterndrive
• OEM genuine Mercury Marine part

COMPLETE SERIAL NUMBER COMPATIBILITY:

0HP Models

• 0HP STERNDRIVE (Mercruiser): 1830753-2063740

100HP Models

• 100HP OUTBOARD (Mercury): 1464949-1768403, 1768404-2318585, 2318586-2836018

105HP Models

• 105HP JET (Mariner): 0D082000-0G303045, 0G303046-0G760299
• 105HP JET (Mercury): 0D082000-0G303045, 0G303046-0G760299

110HP Models

• 110HP JET (Mercury)
• 110HP OUTBOARD (Mercury): 1470349-1865778, 1865779-2798056, 2798057-3263262, 3263263-3795657, 1870204-2314955

115HP Models

• 115HP OUTBOARD (Mariner): 4865178-5430526, 5430527-5738890, 5738891-6436122, 7191308-7208847
• 115HP OUTBOARD (Mercury): 5314656-5600966, 5600967-6436122, 7131213-7147987, 7147988-7208847

Don’t know where your serial number is? Our quick reference guide shows exactly where to find it on Mercury Marine engines.

Verification & Support

Verify part 25439 works with your Mercury using our parts finder tool. Have questions? Reach out using the contact buttons at the bottom of this page — our team is here to help by text, call, or email

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