The 4.0L 1GRFE engine, associated with the 5th digit VIN U and manufactured from October 2010, is a solid used engine option for recent model years. Known for its reliable V6 configuration and multi-point electronic fuel injection, this naturally aspirated engine delivers consistent power and fuel efficiency. Its DOHC setup with updated timing technology supports optimal performance, making it a great option for drivers seeking a durable, newer used engine for various vehicle needs.