Mercury 4 HP 4MLH is perfect choice for small fishing boats, small to medium sized inflatables and sailboats. The 58 lb. Mercury 4 HP outboard engine model # 4MLH is compact, lightweight, and comes equipped with the 20 inch long shaft, manual start, tiller steering, and full forward-neutral-reverse gears and the twist grip throttle. Mercury 4hp models feature an integrated fuel tank for true portability.