View 0 Photos View 0 Videos 2017 Detroit RT40.0-4 Front Differential for a Freightliner Cascadia $1,625 USD (USED) Detroit RT40.0-4 Ratio: 2.41 Side Gear Splines: 41 W/ Locker: NO Cast#: R6813510605 ConditionUsedFits To Make(s)FreightlinerFits To Model(s)CASCADIAStock Number25799597 MLS Number13750838CategoryDifferentials, Front Last Updated11/26/2025 LocationDes Moines, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info