1999 Caterpillar C15, Engine Assys, (GOOD USED & TEST RUN & INTERNALLY INSPECTED) 1999 Caterpillar 3406E Diesel Engine with Jake Brakes, CONVERTED ENGINE, SINGLE TURBO, Serial# 2WS38455, AR# 172-8898, MXS Block Converted to 3406E Single Turbo, 120-PIN Wiring Harness, Stock# 7331