Also known as vibration dampeners, your factory dampers are responsible for reducing the vibration that is often felt when your engine goes through torsional twisting caused by the crankshift, leading to vibration. If you're experiencing engine vibrations from your 2003-2009 Dodge 5.9L/6.7L Cummins, it may be time to replace your damper with the Fluidampr Harmonic Dampers! Featuring a laser-welded and sealed housing along with an internal inertia ring designed for vibration dampening, this Harmonic Damper is designed to eliminate engine vibration and restore smooth handling/driving. The Fluidampr Harmonic Damper is precision designed to also provide reduced wear and tear on your vehicle's bearings and timing gears for longer lasting performance. Restore your handling with the Fluidampr Harmonic Dampers!