Cummins ISM, Alternators, (GOOD USED) Cummins ISB Alternator Support, Idler Pulley, & Belt Tensioner For Sale, Alternator Support Part # 4920106, 30E7, Idler Pulley Part # 3400883, Belt Tensioner Part # 2871294, 2740272, 1108, Stock # 5874 | Tested & Inspected!
