Im selling a good used take off Caterpillar ECM. The part number is 240-5302-01 an it came from a School bus I recently parted out. It was parked in May 2019 due to age. I drove the bus in over 130 miles and it had no issues whatsoever. It came from a 2006 Caterpillar C7 Acert. The ECM was in good working order when removed, shipping is free to the lower 48 United states. What you see in the pictures is what you get.