The Mercury Marine serial number KR-USA30551D708 is Mercury PVC Soft Bottom part of themodel AA310051M. It was produced in 2008. The engine displacement is , and the horsepower ranges from 200, 240, 240AIR, 240SPT, 270AIR, 270SPT, 285AIR, 310AIR, 310SPT, to 340AIR. The engine belongs to the serial range and catalog 2008 [CN-USA30626D708 & Up] – USA – Cat.# 90-899752001. Related components are listed below.