The Mercury Marine serial number 0B105220 is 2 Stroke Carb V-135 engine that’s part of the outboard model 1135746. It was produced during the years 1986, 1987, 1988, and 1988M. The engine displacement is 121.9, and the horsepower ranges from 135, 150, 150MG, to 150XR2. The engine belongs to the serial range and catalog [0A904646 THRU 0C100860] – USA – Cat.# 90-13752. Related components are listed below.