The Mercury 50hp Shift Shaft Assy, Upper (Long Shaft) #25162A1 is a genuine part made by Mercury in the United States. This shaft assembly is designed for outboard engines and is a new, old stock (NOS) item. It is not covered by a warranty, but it is a reliable and high-quality component for boat parts and accessories. Perfect for those looking to replace or upgrade their outboard engine, this Mercury shaft assembly ensures durability and performance.