The 4.0L 1GRFE engine, distinguished by the 5th digit VIN U, is a high-performance used engine ideal for applications where power and durability are essential. Its naturally aspirated configuration delivers a robust output without the complexities of forced induction, while the advanced multi-point fuel injection system ensures precise fuel management. This engine’s DOHC setup with variable valve timing enhances performance and fuel efficiency, making it a dependable choice for a variety of driving needs and a reliable used engine option for those prioritizing power and longevity.