How to Change the Serpentine Belt on a 6.7 Cummins. The serpentine belt is one of the more important 6.7 Cummins parts. The belt name comes from its serpentine appearance as it snakes around several components in the engine. It connects to several pulleys and provides power to crucial systems like power steering, the water pump, air. See more

Web  Learn how serpentine belt routing typically works (diagram included), plus get instructions on how to replace a serpentine belt. Get expert answers to your auto repair questions In The Garage with.