What type of engine does the Cessna 172 have?

The Cessna 172 is equipped with a Lycoming IO-360 engine, which is a four-cylinder, horizontally opposed, fuel-injected engine. This engine configuration is well-suited for general aviation aircraft like the Cessna 172 due to its balance, lightweight design, and reliability. The IO-360 produces sufficient power for a variety of flight conditions while maintaining efficient fuel consumption, which is crucial for training and recreational flying.

The four-cylinder design of the IO-360 contributes to its ability to generate power in a compact space while ensuring smooth operation and reducing vibration. In contrast, the other options describe engines that do not match the specifications or configurations used in the Cessna 172, which helps to clarify why the choice of the Lycoming IO-360 is significant for this aircraft. This engine choice aligns with the performance characteristics and operational needs of the Cessna 172.