If you're dealing with a leaking countershaft seal on your motorcycle, this Hot Rods kit has everything you need to fix it in one package! The OSK0039 includes the countershaft seal, bushing, O-rings, and lock washer (when applicable) - all the components you need to stop that annoying oil leak. Hot Rods is known for making quality motorcycle parts that fit right and work properly. The kit is vehicle-specific, so make sure you get the right one for your bike model. Installation is pretty straightforward if you're comfortable with basic mechanical work - much cheaper than taking it to a shop. The seals are high-quality and designed to withstand the heat and pressure of motorcycle operation. No more oil spots on your garage floor or worrying about your bike losing oil while riding. The components are packaged neatly and clearly labeled, which makes the job easier. Whether you're a DIY mechanic or a professional, this kit saves you the hassle of sourcing individual parts and ensures everything works together properly. A reliable solution for a common motorcycle maintenance issue that'll have your bike running clean and leak-free!