Restore factory performance to your Mercury engine with this OEM SPRING, ADAPTOR STEM. Engineered to exact specifications for reliable operation in fresh and saltwater conditions.

Engineered to Mercury’s rigorous OEM standards, this seal ensures reliable operation across all engine RPM ranges. Part number 30189 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.

Cut-rate alternatives might look similar, but they’re not engineered to Mercury’s exacting standards. Part 30189 delivers consistent performance because it’s built right — the same way Mercury does it at the factory.

Compatible Mercury Marine Engines

FITS: 100-125HP MARINER, MERCURY

• Fits MARINER, MERCURY 100-125HP engines
• Compatible HP: 100HP, 110HP, 115HP, 125HP
• Covers 24 serial number ranges
• Configurations: Outboard
• OEM genuine Mercury Marine part

COMPLETE SERIAL NUMBER COMPATIBILITY:

100HP Models

• 100HP OUTBOARD (Mercury): 1464949-1768403, 1768404-2318585, 2641855-3253111, 2318586-2836018

110HP Models

• 110HP OUTBOARD (Mercury): 1870204-2314955

115HP Models

• 115HP OUTBOARD (Mariner): 4865178-5430526, 5430527-5738890, 5738891-6436122, 7191308-7208847, 8057045-8062459, 8062460-8062634
• 115HP OUTBOARD (Mercury): 5600967-6436122, 7147988-7208847, 2836019-3525440, 3525441-4855152, 7010763-7112248, 8008665-8051949

125HP Models

• 125HP OUTBOARD (Mercury): 2314956-2839368, 2641855-3253111

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

Verification & Support

Verify part 30189 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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