- Stock #310406 - 2010 Mariah SX 18 bowrider with a Mercruiser inboard/outboard! Looking for an affordable bowrider to take your friends and family on a great day on the water? Take a look at this Mariah SX-18, as this might be the one! Powered by a Mercruiser 3.0L inboard/outboard with a stern drive, Alpha One producing 135 horsepower should get you there quickly! Plenty of seating for 8-9 people; you can cruise around comfortably thanks to the plush seating and the spacious bow and transom seating! Easy-to-read gauges and full instrumentation will make the day smooth for the captain; ... read more