Engine Model Cat® C15Gross Power (SAE J1995) 452 hpNet Power (SAE J1349) 439 hpEngine Power (ISO 14396) 447 hpBore 5.4 inStroke 6.75 inDisplacement 926 in³Note (1) Advertised power is tested at 1,700 rpm.Note (2) Advertised power is tested per the specified standard in effect at the time of manufacture.Note (3) The net power advertised is the power available at the flywheel when the engine is equipped with alternator, air cleaner, aftertreatment, and fan at minimum speed.Note (4) Net power when the fan is at maximum speed is 327 kW (439 hp) per the SAE reference conditions.Note (5) Meets U.S. EPA Tier 4 Final, EU Stage V, Korea Stage V, and Japan 2,014 emission standards.Note (6) Diesel exhaust fluid (DEF) used in Cat selective catalytic reduction (SCR) systems must meet the requirements outlined in ISO 22,241-1. Requirements are met by many brands of DEF, including those that carry the AdBlue or API certifications.No Engine De-rating Below 10,000 ftPeak Engine Torque Gross (SAE J1995) 1,711 lbf·ftPeak Engine Torque Net (SAE J1349) 1,670 lbf·ftPeak Engine Torque Speed 1,200 r/min