The 4.0L engine with 5th digit VIN U offers a versatile used engine solution, known for delivering steady performance across various applications. With its naturally aspirated design, it provides consistent power without the need for turbocharging, making it a low-maintenance option. Its multi-port electronic fuel injection system ensures efficient fuel management, promoting both performance and economy. The single overhead cam (SOHC) design supports reliability, making this engine a dependable choice for drivers looking for a durable and easy-to-maintain used engine.