The Caterpillar C15 is a 15.2-liter, inline 6-cylinder diesel engine known for its durability and power. However, like any engine, it relies on a single, critical component for auxiliary power: the serpentine belt . If that belt snaps or comes off, your truck is going nowhere.
Disclaimer: Always refer to the OEM literature for your specific engine serial number. This article provides general guidance for standard C15 mechanical fan applications. cat c15 belt diagram
Keep a spare belt in your side box, a copy of the diagram taped to the inside of the hood, and always replace the tensioner every 2nd belt change. The Caterpillar C15 is a 15