🔍The John Deere 9620 has a 15L Cummins engine, while the 9560 has a 135L Deere engine.
👉The 9620's engine is an industrial version of the X15 engine.
🚜The 9620 and 9560 tractors have different engine sizes and components.
💪The 15L Cumin engine in the 9620 is larger than the 135L Deere engine in the 9560.
🔄The 9620 has a Q15 engine, not an X15 engine as initially thought.