The Caterpillar 3512 pump drive engine is an V-12, 4-Stroke-Cycle-Diesel engine with a 170.0 mm (6.7 in) bore, 190.0 mm (7.5 in) stroke and 34.5 L (2105.0 in³) displacement. The Caterpillar 3512 pump drive engine is rated at 1750 RPM and rated at 1600 BHP (1193 bkW)....