The Mercury Marine serial number 0E235121 is 175XR2 JET DRIVE (POWERHEAD) part of themodel H74SP10TD. It was produced during the years 1997, 1998, and 1999. The engine displacement is 153, and the horsepower ranges from 175 to 175XR2. The engine belongs to the serial range and catalog [0E151580 THRU 0E369299] – USA – Cat.# 90-835085R2. Related components are listed below.