ATI Performance Products, Inc. is proud to introduce its renowned Super Damper for Dodge Cummins Diesel Engines. Unlike unbalanced underdrive pulleys, which offer no protection to high performance engines, the ATI Super Damper provides balanced dampening of torsional crankshaft vibrations at all RPM. The ATI Super Damper comes with laser-etched timing marks and is a direct replacement for the stock OEM unit. The Super Damper is especially needed in high performance and modified trucks to help protect against harmful engine harmonics and features a six groove serpentine belt drive on the outershell to utilize the factory serpentine belt set-up. All ATI Super Dampers exceed SFI 18.1 Safety Certification and are approved for competition use.