Mercury Marine FourStroke 300 FourStroke Excellence without compromise Elevate your experience on the water with Mercury FourStroke outboards. Designed to deliver unsurpassed power and performance in an efficient, reliable package thats built to please, the new FourStroke V8 and V6 outboards are the smallest and lightest in their class. Theyre engineered to go the distance on a wide variety of boats, and to make every adventure all it should be. ENGINE DETAILS These robust motors deliver Mercurys best-ever FourStroke hole shot, top speed and fuel efficiency. Great for aluminum fishing, deck, inflatable rigid hull, inshore fishing, offshore fishing and runabouts and tritoons.