This is a Nissan X-Trail QR25DE 2.5-liter, 4-cylinder engine, typically found in the first-generation (T30, 2000-2007) and second-generation (T31, 2007-2013) “old shape” X-Trail models.
It’s a naturally aspirated, DOHC (Dual Overhead Cam) petrol engine, known for its robust design and reliable performance, offering a good balance of power (around 165-171 horsepower in these applications) and torque for the compact SUV. The top-mount designation refers to the positioning of one of the primary engine mounts.
