Looking to purchase a reliable Mercury 20 HP 4-stroke outboard? Figuring out the existing price range can save you cash. New Mercury 20 HP 4-strokes typically price between $3,500 and $5,500, depending on options and vendor charges. Used Mercury 20 HP 4-strokes often fetch for $2,000 to $4,000, influenced by condition, time and general state. Ke… Read More