Don’t miss another weekend. This genuine Mercury Marine SEAL, GEAR HOUSING ships fast and installs easily – get back on the water where you belong.

Factory-built to exact Mercury Marine specifications, this seal ensures reliable operation across all engine RPM ranges. Part number 455771 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.

Aftermarket parts might save a few dollars upfront, but genuine Mercury Marine part 455771 saves you money long-term by lasting years instead of months. Factory precision means perfect fit — no modifications, no surprises.

Compatible Mercury Marine Engines

FITS:

• Compatible with Mercury Marine engines
• OEM genuine Mercury part

COMPLETE SERIAL NUMBER COMPATIBILITY:

HP Models

• HP OUTBOARD (Mercruiser): 0F680000-0K999999, 0F730000-0M100000, 0M100001-0W249999, 0F730000-0M100000, 0M100001-0W249999, 0F730000-0M100000, 0M100001-0W249999, 0M100001-0W249999, 0M100001-0W249999, 0M100001-0W249999, 0L914990-0W239999, 0M052945-0M906877, 0L914990-0M999999

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 455771 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

40+ years of marine expertise. Competitive pricing, same-day shipping on most orders.