View 5 Photos View 0 Videos Detroit DA-RT-40.0-4 Rear Differential for a 2021 Freightliner Cascadia 126 $999.99 USD (Used) 2021 Freightliner Cascadia 126, REAR DIFFERENTIAL GEARS ONLY- Part Number: C11-00051-656, Serial Number: 771195B0201298, Make: Detroit, Model: DA-RT-40.0-4, Ratio: 2.85, Capacity:... ConditionUsedRear End2.85 ratioFits To Make(s)FreightlinerFits To Model(s)Cascadia 126Will Fit Year(s)2021Part NumberC11-00051-620Stock NumberP-491479 MLS Number14049958CategoryDifferentials, Rear Last Updated7/1/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos Detroit RT40-NFD Rear Differential for a 2021 Freightliner Cascadia 126 Contact for price (Used) 2021 Freightliner Cascadia 126, COMPLETE REAR DIFFERENTIAL GEARS ONLY- Part Number: C11-00051-656, Serial Number: 771195B0162007, Make: Detroit, Model: RT40-NFD, Ratio: 2.16,... ConditionUsedRear End2.16 ratioFits To Make(s)FreightlinerFits To Model(s)Cascadia 126Will Fit Year(s)2021Part NumberC11-00051-656Stock NumberP-114211 MLS Number13995712CategoryDifferentials, Rear Last Updated7/2/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Detroit DA-RT-44.0-4 Rear Differential for a 2017 Western Star 4700 Contact for price (Used) 2017 Western Star 4700, REAR DIFFERENTIAL GEARS ONLY- Serial Number: 771AAC-A212468T, Part Number: C11-00011-320, Make: Detroit, Model: DA-RT-44.0-4, Ratio: 4.78, Capacity: 22,000 Lbs... ConditionUsedRear End4.78 ratioFits To Make(s)Western StarFits To Model(s)4700Will Fit Year(s)2017Part NumberC11-00011-320Stock NumberP-493428 MLS Number14077604CategoryDifferentials, Rear Last Updated5/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos Detroit Rear Differential for a 2018 Freightliner M2 106 Contact for price (Used) 2018 Freightliner M2 106, DIFFERENTIAL GEARS ONLY- Part Number: C11-00009-092, Serial Number: 742821-A178277, Make: Detroit, Model: R17.5-4N, Ratio: 5.88, Capacity: 17,500 Lbs, For... ConditionUsedRear End5.88 ratioFits To Make(s)FreightlinerFits To Model(s)M2 106Will Fit Year(s)2018Part NumberC11-00009-09Stock NumberP-491675 MLS Number14053353CategoryDifferentials, Rear Last Updated5/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Detroit Rear Differential for a 2020 Western Star 5700 Contact for price (Used) 2020 Western Star 5700, REAR DIFFERENTIAL GEARS ONLY- Part Number: C11-00051-253, Serial Number: 771195A0060107, Make: Detroit, Model: RT40-NFD-N, Ratio: 2.41, Capacity: 20,000 Lbs,... ConditionUsedRear End2.41 ratioFits To Make(s)Western StarFits To Model(s)5700Will Fit Year(s)2020Part NumberC11-00051-253Stock NumberP-494377 MLS Number14094417CategoryDifferentials, Rear Last Updated5/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos Detroit RT40-4N Rear Differential for a 2017 Freightliner Cascadia 125 Contact for price (Used) 2017 Freightliner Cascadia 125, REAR DIFFERENTIAL GEARS ONLY- Part Number: C11-00042-143, Serial Number: 771AAC-A207402T, Make: Detroit, Model: RT40-4N, Ratio: 3.08, Capacity: 20,000... ConditionUsedRear End3.08 ratioFits To Make(s)FreightlinerFits To Model(s)Cascadia 125Will Fit Year(s)2017Part NumberC11-00042-143Stock NumberP-494589 MLS Number14097831CategoryDifferentials, Rear Last Updated5/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Detroit RS21-4 Rear Differential for a 2020 Freightliner M2 106 Contact for price (Used) 2020 Freightliner M2 106, DIFFERENTIAL GEARS ONLY- Part Number: C11-00007-208, Serial Number: 742821B0095274, Make: Detroit, Model: RS21-4, Ratio: 5.56, Capacity: 19,000 Lbs, For more... ConditionUsedRear End5.56 ratioFits To Make(s)FreightlinerFits To Model(s)M2 106Will Fit Year(s)2020Part NumberC11-00007-208Stock NumberP-495136 MLS Number14108422CategoryDifferentials, Rear Last Updated5/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos Detroit D742821 Rear Differential for a 2020 Freightliner M2 106 Contact for price Detroit RS40-4 rear differential, for sale, ratio: 6.14 in good condition. Call for more information. We ship everywhere., Core Charge: 0, Ratio: 6.14 ConditionUsedRear End6.14 ratioFits To Make(s)FreightlinerFits To Model(s)M2 106Will Fit Year(s)2020Part NumberD742821Stock NumberFR-0899-4 MLS Number13879313CategoryDifferentials, Rear Last Updated5/14/2026 LocationYork, ON, Canada Sold ByLomoca Inc. (833) 835-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos Detroit DA-RS-19.0-4 Rear Differential for a 2018 Freightliner M2 106 Contact for price (Used) 2018 Freightliner M2 106, DIFFERENTIAL GEARS ONLY- Part Number: C11-00007-206, Serial Number: 742821-A182224, Make: Detroit, Model: DA-RS-19.0-4, Ratio: 5.56, Capacity: 19,000 Lbs,... ConditionUsedRear End5.56 ratioFits To Make(s)FreightlinerFits To Model(s)M2 106Will Fit Year(s)2018Part NumberC11-00007-206Stock NumberP-495591 MLS Number14119852CategoryDifferentials, Rear Last Updated7/27/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Detroit Rear Differential for a 2005 Sterling L7500 Contact for price (Used) 2005 Sterling L7500, DIFFERENTIAL GEARS ONLY- Part Number: C11-00010-029, Serial Number: 742821-A001845, Make: Detroit, Model: R23-4N, Ratio: 6.14, Capacity: 23,000 Lbs, For more... ConditionUsedRear End6.14 ratioFits To Make(s)SterlingFits To Model(s)L7500Will Fit Year(s)2005Part NumberC11-00010-029Stock NumberP-496002 MLS Number14127811CategoryDifferentials, Rear Last Updated5/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Detroit RS21-4 Rear Differential for a 2020 Freightliner M2 106 Contact for price (Used) 2020 Freightliner M2 106, DIFFERENTIAL GEARS ONLY- Part Number: C11-00009-160, Serial Number: 742821B0120691, Make: Detroit, Model: RS21-4, Ratio: 5.88, Capacity: 17,500 Lbs, For more... ConditionUsedRear End5.88 ratioFits To Make(s)FreightlinerFits To Model(s)M2 106Will Fit Year(s)2020Part NumberC11-00009-160Stock NumberP-496981 MLS Number14142545CategoryDifferentials, Rear Last Updated5/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos Detroit RT40-NFD-N Rear Differential for a 2020 Freightliner Cascadia 126 Contact for price (Used) 2020 Freightliner Cascadia 126, REAR DIFFERENTIAL GEARS ONLY- Part Number: C11-00051-317, Serial Number: 771195A0060415, Make: Detroit, Model: RT40-NFD-N, Ratio: 3.08, Capacity:... ConditionUsedRear End3.08 ratioFits To Make(s)FreightlinerFits To Model(s)Cascadia 126Will Fit Year(s)2020Part NumberC11-00051-317Stock NumberP-498319 MLS Number14161519CategoryDifferentials, Rear Last Updated6/30/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos Detroit RT40-4N Rear Differential for a 2014 Freightliner Cascadia 125 Contact for price (Used) 2014 Freightliner Cascadia 125, REAR DIFFERENTIAL GEARS ONLY- Part Number: C11-00042-045, Serial Number: 771AAC-A112546T, Make: Detroit, Model: RT40-4N, Ratio: 2.53, Capacity: 20,000... ConditionUsedRear End2.53 ratioFits To Make(s)FreightlinerFits To Model(s)Cascadia 125Will Fit Year(s)2014Part NumberC11-00042-045Stock NumberP-498552 MLS Number14166977CategoryDifferentials, Rear Last Updated5/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos Detroit RT40-NFD Rear Differential for a 2021 Freightliner Cascadia 126 Contact for price (Used) 2021 Freightliner Cascadia 126, REAR DIFFERENTIAL GEARS ONLY- Part Number: C11-00051-618, Serial Number: 771195B0160106, Make: Detroit, Model: RT40-NFD, Ratio: 2.41, Capacity: 20,000... ConditionUsedRear End2.41 ratioFits To Make(s)FreightlinerFits To Model(s)Cascadia 126Will Fit Year(s)2021Part NumberC11-00051-618Stock NumberP-499331 MLS Number14231950CategoryDifferentials, Rear Last Updated5/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos Detroit DA-RT-40.0-4S Rear Differential for a 2022 Freightliner Cascadia 126 Contact for price (Used) 2022 Freightliner Cascadia 126, REAR DIFFERENTIAL GEARS ONLY- Part Number: C11-00051-620, Serial Number: 771195B0245935, Make: Detroit, Model: DA-RT-40.0-4S, Ratio: 2.85, Capacity: 20... ConditionUsedRear End2.85 ratioFits To Make(s)FreightlinerFits To Model(s)Cascadia 126Will Fit Year(s)2022Part NumberC11-00051-620Stock NumberP-499430 MLS Number14232068CategoryDifferentials, Rear Last Updated5/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos Detroit RS21-4 Rear Differential for a 2024 Freightliner M2 106 Contact for price (Used) 2024 Freightliner M2 106, DIFFERENTIAL GEARS ONLY- Part Number: C11-00007-217, Serial Number: 742821A0267291, Make: Detroit, Model: RS21-4, Ratio: 5.56, Capacity: 19,000 Lbs,... ConditionUsedRear End5.56 ratioFits To Make(s)FreightlinerFits To Model(s)M2 106Will Fit Year(s)2024Part NumberC11-00007-217Stock NumberP-497944 MLS Number14157193CategoryDifferentials, Rear Last Updated5/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Detroit RT40-4N Rear Differential for a 2018 Western Star 5700 Contact for price (Used) 2018 Western Star 5700, REAR DIFFERENTIAL GEARS ONLY- Part Number: C11-00042-143, Serial Number: 771AAC-A242503T, Make: Detroit, Model: RT40-4N, Ratio: 3.08, Capacity: 20,000 Lbs,... ConditionUsedRear End3.08 ratioFits To Make(s)Western StarFits To Model(s)5700Will Fit Year(s)2018Part NumberC11-00042-143Stock NumberP-501138 MLS Number14273826CategoryDifferentials, Rear Last Updated6/22/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Detroit RT40-NFD Rear Differential for a 2020 Freightliner Cascadia 125 Contact for price (Used) 2020 Freightliner Cascadia 125, REAR DIFFERENTIAL GEARS ONLY- Part Number: C11-00051-355, Serial Number: 771195B0070203, Make: Detroit, Model: RT40-NFD, Ratio: 3.23, Capacity: 20,000... ConditionUsedRear End3.23 ratioFits To Make(s)FreightlinerFits To Model(s)Cascadia 125Will Fit Year(s)2020Part NumberC11-00051-355Stock NumberP-501252 MLS Number14277526CategoryDifferentials, Rear Last Updated5/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Detroit RS21-4 Rear Differential for a 2019 Freightliner M2 106 Contact for price (Used) 2019 Freightliner M2 106, DIFFERENTIAL GEARS ONLY- Part Number: C11-00007-217, Serial Number: 742821B0055761, Make: Detroit, Model: RS21-4, Ratio: 5.56, Capacity: 21,000 Lbs,... ConditionUsedRear End5.56 ratioFits To Make(s)FreightlinerFits To Model(s)M2 106Will Fit Year(s)2019Part NumberC11-00007-217Stock NumberP-501447 MLS Number14284100CategoryDifferentials, Rear Last Updated5/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Detroit RT40-NFD Rear Differential for a 2021 Freightliner Cascadia 126 Contact for price (Used) 2021 Freightliner Cascadia 126, REAR DIFFERENTIAL GEARS ONLY- Part Number: C11-00051-620, Serial Number: 771195B0179374, Make: Detroit, Model: RT40-NFD, Ratio: 2.85, Capacity: 20,000... ConditionUsedRear End2.85 ratioFits To Make(s)FreightlinerFits To Model(s)Cascadia 126Will Fit Year(s)2021Part NumberC11-00051-620Stock NumberP-500912 MLS Number14264486CategoryDifferentials, Rear Last Updated5/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Detroit RS21-4 Rear Differential for a 2020 Freightliner M2 106 Contact for price (Used) 2020 Freightliner M2 106, DIFFERENTIAL GEARS ONLY- Part Number: C11-00007-109, Serial Number: 742821B0084685, Make: Detroit, Model: RS21-4, Ratio: 5.88, Capacity: 19,000 Lbs,... ConditionUsedRear End5.88 ratioFits To Make(s)FreightlinerFits To Model(s)M2 106Will Fit Year(s)2020Part NumberC11-00007-109Stock NumberP-502209 MLS Number14318219CategoryDifferentials, Rear Last Updated9/3/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos Detroit RT40-NFD Rear Differential for a 2021 Freightliner Cascadia 126 Contact for price (Used) 2021 Freightliner Cascadia 126, REAR DIFFERENTIAL GEARS ONLY- Part Number: C11-00051-620, Serial Number: 771195A0150933, Make: Detroit, Model: RT40-NFD, Ratio: 2.85, Capacity: 20,000... ConditionUsedRear End2.85 ratioFits To Make(s)FreightlinerFits To Model(s)Cascadia 126Will Fit Year(s)2021Part NumberC11-00051-620Stock NumberP-501025 MLS Number14270542CategoryDifferentials, Rear Last Updated5/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Detroit RT40-NFD-N Rear Differential for a 2021 Freightliner Cascadia 126 Contact for price (Used) 2021 Freightliner Cascadia 126, REAR DIFFERENTIAL GEARS ONLY- Part Number: C11-00051-620, Serial Number: 771195A0115505, Make: Detroit, Model: RT40-NFD-N, Ratio: 2.85, Capacity:... ConditionUsedRear End2.85 ratioFits To Make(s)FreightlinerFits To Model(s)Cascadia 126Will Fit Year(s)2021Part NumberC11-00051-620Stock NumberP-502277 MLS Number14319446CategoryDifferentials, Rear Last Updated8/22/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Detroit RT40-4N Rear Differential for a 2018 Freightliner Cascadia 125 Contact for price (Used) 2018 Freightliner Cascadia 125, REAR DIFFERENTIAL GEARS ONLY- Part Number: C11-00042-501, Serial Number: 771AAC-A223772T, Make: Detroit, Model: RT40-4N, Ratio: 3.23, Capacity:... ConditionUsedRear End3.23 ratioFits To Make(s)FreightlinerFits To Model(s)Cascadia 125Will Fit Year(s)2018Part NumberC11-00042-501Stock NumberP-60035 MLS Number12332375CategoryDifferentials, Rear Last Updated5/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos Detroit Rear Differential for a 2017 Freightliner M2 106 Contact for price Detroit DA-RS-17.5-4 Single Rear Differential Assembly For Sale 6.14 Ratio - Serial Number: 742821-A177199 - Used - May have some cosmetic blemishes (see photos). Got questions or need more... ConditionUsedFits To Make(s)FreightlinerFits To Model(s)M2 106Will Fit Year(s)2017Stock NumberFR-0801-16 MLS Number12368155CategoryDifferentials, Rear Last Updated5/14/2026 LocationYork, ON, Canada Sold ByLomoca Inc. (833) 835-___ SHOWNUMBERCall Seller Email Seller Save More Info