The Mercury V6 200 HP FourStroke is a powerful, lightweight engine with a 3.4L displacement, designed for smooth performance and fuel efficiency. Key features include its V6, DOHC engine with 24 valves, Electronic Fuel Injection (EFI), and the Advanced Range Optimization (ARO) system for better cruise fuel economy. It offers options for hydraulic or power steering, various shaft lengths, and is compatible with SmartCraft digital technology.