WSM Propeller Shaft Oil Seal – Fits Mercury/Mariner/Mercruiser 150-300 HP 447-421

About This Product

If you've got a Mercury, Mariner, or Mercruiser outboard or sterndrive between 150-300 HP, this WSM oil seal is what you need for the propeller shaft. Part numbers 447-421, 815565, and 26-815565 all cross-reference to this seal. Brand new, comes in original packaging, and includes a warranty. Keeps water out and gear oil in, preventing damage to bearings and gears. Easy to install during routine maintenance or when you notice leaks. A small part that can save you from big repair bills down the line. Made from high-quality materials that resist saltwater and corrosion. Fits many popular outboard models from the 1990s to early 2000s. Order the correct seal by matching your engine's part number. Helps maintain proper lubrication and keeps your lower unit running smoothly. A must-have for boat owners, mechanics, or anyone doing their own marine repairs. Don't let a worn seal ruin your day on the water. Affordable and reliable – WSM is a trusted brand for marine parts. Keep a spare in your boat toolbox for peace of mind. Simple to replace with basic tools and a manual. Get yours today and keep your outboard in top shape.