Engine Model Cat C7.1Power - Net 170 hpNet Power - Rated - ISO 9249/SAE J1349 170 hpNet Power (Rated) - ISO 9249 (DIN) 172 mhpEmissions U.S. EPA Tier 4 Final/EU Stage V/Japan 2,014 (Tier 4 Final)/Korea Stage VNote (1) Rated horsepower at 1,770 rpm. Net power advertised is the power available at the engine flywheel when the engine is equipped with a fan, air cleaner, clean emissions module and alternator. Advertised power is tested per the specified standard in effect atNote (2) Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels up to: 20% biodiesel FAME (fatty acid methyl ester) ** or 100% renewable diesel, HVO (Note (3) Basic machine specs provided below. For complete specifications and dimensions by configuration, blade and track shoe offerings and more, please visit the product download section to view the full Technical Specifications document.Note (4) Machine Build Number 17B