The Mercury Marine serial number 0A261381 is THRUSTER II part of themodel 1001927. It was produced during the years 1984, 1985, 1986, 1987, and 1988. The engine displacement s are either 21 or 28, and the horsepower is . The engine belongs to the serial range and catalog [6300953 & Up] – Cat.# 90-13284. Related components are listed below.