Engine Model Cat® C9.3Gross Power (SAE J1995) 342 hpNet Power (SAE J1349) 334 hpEngine Power (ISO 14396) 338 hpBore 4.5 inStroke 45.2 inDisplacement 567.5 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, muffler, and fan at minimum speed.Note (4) Net power when the fan is at maximum speed is 249 kW (334 hp) per the SAE reference conditions.Note (5) Meets U.S. EPA Tier 4 Final/EU Stage V, Japan 2,014, and Korea Stage V emission standards.Note (6) Diesel exhaust fluid (DEF) used in Cat SCR systems must meet the requirements outlined in ISO 22,241-1. 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 3,000 ftPeak Engine Torque Gross (SAE J1995) 1,275 lbf·ftPeak Engine Torque Net (SAE J1349) 1,263 lbf·ftPeak Engine Torque Speed 1,200 r/min