* 1.8L 4-cylinder engine: This was the base engine option, producing 126 horsepower and 128 lb-ft of torque.
* 2.0L 4-cylinder engine: This was the more powerful option, producing 140 horsepower and 138 lb-ft of torque. It was available in the Sentra SE and SL trims.
Keep in mind that the specific engine in your 2009 Sentra will depend on the trim level and any modifications that may have been made to the vehicle.
