With features like a large blade area and unique geometric blade design, the Solas Concord Impeller delivers remarkable thrust and extraordinary efficiency. As four stroke technology becomes mainstream in the PWC world, the Concord design truly enhances the engine characteristics, not only delivering incredible acceleration but excellent top end performance. From water skiing to high speed cruising, this technologically advanced power torque design with its radial edge will offer everything you could ask for in an impeller. Compatible with the following stock Mercury Sport Jet models: Speedster (2000-2002), Speedster SK (2000), Speedster 160 (2004), Challenger 1800 (200-2005), Challenger 2000 (2000-2005), Challenger X (2004-2005), Sportster 1800 (2000), Utopia 205 (2002-2005), Utopia 185 (2001-2005), Islandia (2001-2005).