• Sep 4, 2025 isuzu npr 4he1 ype: 4-cylinder, 4HE1 Diesel Displacement: 3.9 liters (3,916 cc) Power Output: Approximately 125-130 horsepower (varies by model year) Torque: Around 285-300 Nm (210-221 lb-ft) Fuel System: Direct injection Turbocharged: Yes, in many configurations for By Carrie Lockman