View 5 Photos View 0 Videos Arvin/Meritor B3121M1729 Front Differential for a 2012 Freightliner Cascadia 125 Contact for price (Used) 2012 Freightliner Cascadia 125, COMPLETE FRONT DIFFERENTIAL GEARS ONLY- Make: Arvin/Meritor, Model: B3121M1729, Serial Number: DRK12707328, Ratio: 3.55, Hub Bolts: 10, Brake Type:... ConditionUsedRear End3.55 ratioFits To Make(s)FreightlinerFits To Model(s)Cascadia 125Will Fit Year(s)2012Stock NumberP-41692 MLS Number11927659CategoryDifferentials, Front Last Updated3/12/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Arvin/Meritor B3121M1729 Rear Axle Housing for a 2012 Freightliner Cascadia 125 Contact for price (Used) 2012 Freightliner Cascadia 125, COMPLETE FRONT DIFFERENTIAL HOUSING ONLY- Make: Arvin/Meritor, Model: B3121M1729, Serial Number: DRK12707328, Ratio: 3.55, Hub Bolts: 10, Brake Type:... ConditionUsedFits To Make(s)FreightlinerFits To Model(s)Cascadia 125Will Fit Year(s)2012Stock NumberP-41687 MLS Number11927654CategoryAxle Housings, Rear Last Updated3/12/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos Arvin/Meritor B3121M1729 Front Differential for a 2012 Freightliner Cascadia 125 Contact for price (Used) 2012 Freightliner Cascadia 125, COMPLETE FRONT REAR TANDEM- Make: Arvin/Meritor, Model: B3121M1729, Serial Number: DRK12707328, Ratio: 3.55, Hub Bolts: 10, Brake Type: Disk, Capacity:... ConditionUsedRear End3.55 ratioFits To Make(s)FreightlinerFits To Model(s)Cascadia 125Will Fit Year(s)2012Stock NumberP-41682 MLS Number11927650CategoryDifferentials, Front Last Updated3/12/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info