CRANK DAMPERS

Our viscous torsional damper is a design that consists of a free rotation inertia ring surrounded by a viscous silicone fluid enclosed in a laser welded, sealed housing. When crankshaft torsional vibrations occur, the outer housing of the damper reacts with the crankshaft, twisting as it rotates, while the inertia ring attempts to rotate at a constant speed. This relative motion  between  the  inertia ring and housing causes the inertia ring to shear the silicone fluid, which reduces the destructive torsional vibrations of the crankshaft. When left unchecked, these vibrations may lead to a cracked or broken crankshaft, valve train problems and premature bearing wear.
 
For more information about our Viscous Crank Dampers, or for help with any of your performance needs, contact your nearest PDI dealer or call PDI at 800-511-1231.
 
Available for All Caterpillar, Cummins & Detroit Engines

CALL 800-511-1231

*NOT Approved for Sale or Installation in the State of California

YOU DESERVE THE HIGHEST QUALITY DIESEL PERFORMANCE PRODUCTS

Established in 2001, PDI is a manufacturer of high-quality, diesel performance products. From the sale to installation, you can count on PDI to provide the very best in customer service and advice. We are dedicated to discovering the best possible combinations of high performance parts and accessories to help you achieve your diesel efficiency and power goals.