Cat C15 Fan Belt Diagram [extra Quality] Jun 2026

While visual layouts can vary slightly depending on whether you have a single or dual-belt setup (common in AC-equipped trucks), the standard C15 routing follows this general path:

On a Cat C15, the tensioner is just as important as the belt. If the tensioner arm is vibrating excessively while the engine is idling, the internal dampener is likely shot. A bad tensioner will cause even a brand-new belt to fail prematurely. cat c15 fan belt diagram