View 0 Photos View 0 Videos 2006 Axle Alliance RS21.0-4 Rear Differential for a Sterling Acterra Recently Updated $945 USD (USED) Alliance Axle RS21.0-4 Ratio: 5.22 Side Gear Splines: 41 W/ Locker: NO Cast#: R6813511005 ConditionUsedFits To Make(s)SterlingFits To Model(s)ACTERRAStock Number25930134 MLS Number14128440CategoryDifferentials, Rear Last Updated5/20/2026 LocationWinimac, IN, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2006 Axle Alliance RS21.0-4 Rear Differential for a Sterling Acterra Recently Updated $945 USD (USED) Alliance Axle RS21.0-4 Ratio: 5.22 Side Gear Splines: 41 W/ Locker: NO Cast#: R6813511005 ConditionUsedFits To Make(s)SterlingFits To Model(s)ACTERRAStock Number25934477 MLS Number14228256CategoryDifferentials, Rear Last Updated5/20/2026 LocationCouncil Bluffs, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2007 Axle Alliance RS21.0-4 Rear Differential for a Sterling Acterra Recently Updated $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 Updated5/17/2026 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 RS21.0-4 Rear Differential for a Freightliner M2 106 Recently Updated $945 USD (USED) Alliance Axle RS21.0-4 Ratio: 5.22 Side Gear Splines: 41 W/ Locker: NO Cast#: R6813511005 ConditionUsedFits To Make(s)FreightlinerFits To Model(s)M2 106Stock Number25952140 MLS Number14160932CategoryDifferentials, Rear Last Updated5/20/2026 LocationWinimac, IN, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2011 Axle Alliance RS21.0-4 Rear Differential for a Freightliner M2 106 $908 USD (USED) Alliance Axle RS21.0-4 Ratio: 4.78 Side Gear Splines: 41 W/ Locker: NO Cast#: R6613511005 Ref# 6093500603 ConditionUsedFits To Make(s)FreightlinerFits To Model(s)M2 106Part Number6093500603Stock Number25882966 MLS Number13984478CategoryDifferentials, Rear Last Updated1/8/2026 LocationKansas City, MO, 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