The Mercury Marine serial number 1B157126 is 4 Stroke 75 (4-STROKE) engine that’s part of the outboard model 7F75412TD. It was produced during the years 2004 and 2005. The engine displacement is 97.4, and the horsepower ranges from 75 to 90. The engine belongs to the serial range and catalog [0T801000 THRU 1B226999] – USA – Cat.# 90-804851004. Related components are listed below.