Dayco heavy-duty serpentine belt kits are OE engineered to perform in the most demanding driving environments where safety and performance are crucial. Including all the necessary components for a thorough and proper repair, Dayco’s cost-effective kits are designed to ensure the belt drive system can handle the higher torque and power pulses of today’s commercial vehicles.
While the limited powertrain warranty was originally going to end on Jan. 2, 2026, the company decided to extend it with the knowledge that nearly 80% of new truck loans exceed the traditional 5-year/60,000-mile powertrain warranty period.