OE Number: 2891940, 3104149, 3682255 3682683, 3690067, D11862633 38610, 49582, 89448, 180896 26984 Will Fit Following Models: Fit for Cummins ISX Series Belt Tensioner Note: Please compare your item carefully with photo and OE Number to avoid mistake!!! Package Includes: 1x Belt Tensioner” Length 6.1 in Width 4.1 in Height 3.5 in Weight 3.2 lbs .