Engine Model
Cat C9.3
Bore
4.5in
Stroke
45.2in
Displacement
567.5in³
Gross Power – SAE J1995
342hp
Net Power – ISO 14396
338hp
Net Power – SAE J1349
334hp
Peak Engine Torque Gross (SAE J1995)
1275ft·lbf
Engine Model – U.S. EPA Tier 4 Final/EU Stage IV
Cat® C9.3
No Engine De-rating Below
3000ft
Peak Engine Torque Net (SAE J1349)
1263ft·lbf
Peak Engine Torque Speed
1200r/min
Note (1)
The power ratings apply at rated speed of 1,700 rpm when tested under the conditions for the specified standard.
Emissions
The reference to Tier 4 Final/Stage IV includes U.S. EPA Tier 4 Final, EU Stage V, Japan 2014 (Tier 4 Final), as well as Korea Tier 4 Final emission standards.
Note (3)
Net power when the fan is at maximum speed is 249 kW (334 hp) per the SAE reference conditions.
Note (2)
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)
DEF used in Cat SCR systems must meet the requirements outlined in the International Organization for Standardization (ISO) standard 22241-1. ISO 22241-1 requirements are met by many brands of DEF, including those that carry the AdBlue or API certificatio