View 0 Photos View 0 Videos 2007 Axle Alliance RS21.0-4 Rear Differential for a Sterling Acterra $995 USD (USED) Alliance Axle RS21.0-4 Ratio: 5.22 Side Gear Splines: 46 W/ Locker: YES Cast#: R6813511105 ConditionUsedFits To Make(s)SterlingFits To Model(s)ActerraStock Number25912119 MLS Number14048652CategoryDifferentials, Rear Last Updated12/18/2025 LocationDes Moines, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2019 Axle Alliance RT40.0-4 Rear Differential for a Freightliner Cascadia $908 USD (USED) Alliance Axle RS21.0-4 Ratio: 2.85 Side Gear Splines: 41 W/ Locker: NO Cast#: R6813510805 ConditionUsedFits To Make(s)FreightlinerFits To Model(s)CASCADIAStock Number25901786 MLS Number13998504CategoryDifferentials, Rear Last Updated12/4/2025 LocationSpencer, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info