VIBRATECH TVD DESIGNS AND MANUFACTURES VISCOUS TYPE HARMONIC DAMPERS FOR MAJOR OEM ENGINE MANUFACTURES AROUND THE WORLD. 100% MADE IN THE USA. FACT: DAMPERS DO WEAR OUT AND SHOULD BE CHANGED AT EVERY MAJOR OVERHAUL AND IN FRAME OVERHAUL TO HELP INCREASE EFFICIENCY AND REDUCE DOWNTIME. FIVE ZERO FOUR 362 2371. The item "CUMMINS ISX CRANKSHAFT DAMPER 4101884 ISX VIBRATION DAMPER 4026799 3680504" is in sale since Wednesday, August 6, 2014. This item is in the category "eBay Motors\Parts & Accessories\Commercial Truck Parts\Engines & Components\Crankshafts". The seller is "trader9278" and is located in Harvey, Louisiana.