View 4 Photos View 0 Videos Detroit RT40-4N Front Differential for a 2018 Freightliner Cascadia 126 Contact for price (Used) 2018 Freightliner Cascadia 126, COMPLETE FRONT DIFFERENTIAL GEARS ONLY- Part Number: C11-00042-390, Serial Number: 771AAC-A239971H, Make: Detroit, Model: RT40-4N, Ratio: 3.08,... ConditionUsedRear End3.08 ratioFits To Make(s)FreightlinerFits To Model(s)Cascadia 126Will Fit Year(s)2018Part NumberC11-00042-390Stock NumberP-97036 MLS Number13413523CategoryDifferentials, Front Last Updated5/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 6 Photos View 0 Videos Detroit DA-RT-40.0-4 Front Differential for a 2016 Freightliner Cascadia 125 Contact for price (Used) 2016 Freightliner Cascadia 125, COMPLETE FRONT REAR TANDEM- Part Number: Other, Serial Number: 771AAC-A176500H, Make: Detroit, Model: DA-RT-40.04, Ratio: 3.42, Capacity,: 20,000 Lbs... ConditionUsedRear End3.42 ratioFits To Make(s)FreightlinerFits To Model(s)Cascadia 125Will Fit Year(s)2016Stock NumberP-87292 MLS Number13089838CategoryDifferentials, Front Last Updated5/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 10 Photos View 0 Videos Detroit DA-RT-40.0-4 Front Differential for a 2016 Freightliner Cascadia 125 Contact for price (Used) 2016 Freightliner Cascadia 125, COMPLETE FRONT DIFFERENTIAL GEARS ONLY- Part Number: Other, Serial Number: 771AAC-A176500H, Make: Detroit, Model: DA-RT-40.0-4, Ratio: 3.42, Capacity:... ConditionUsedRear End3.42 ratioFits To Make(s)FreightlinerFits To Model(s)Cascadia 125Will Fit Year(s)2016Stock NumberP-87294 MLS Number13089841CategoryDifferentials, Front 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 Front Differential for a 2016 Western Star 5700 Contact for price (Used) 2016 Western Star 5700, COMPLETE FRONT DIFFERENTIAL GEARS ONLY- Part Number: C11-00042-503, Serial Number: 771AAC-A178020H, Make: Detroit, Model: RT40-4N, Ratio: 3.08, Capacity:... ConditionUsedRear End3.08 ratioFits To Make(s)Western StarFits To Model(s)5700Will Fit Year(s)2016Part NumberC11-00042-503Stock NumberP-78048 MLS Number12790317CategoryDifferentials, Front 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 Front Differential for a 2017 Freightliner Cascadia 125 Contact for price (Used) 2017 Freightliner Cascadia 125, COMPLETE FRONT REAR TANDEM- Part Number: C11-00042-734, Serial Number: 771AAC-A210439H, Make: Detroit, Model: RT40-4N, Ratio: 2.41, Capacity: 20,000... ConditionUsedRear End2.41 ratioFits To Make(s)FreightlinerFits To Model(s)Cascadia 125Will Fit Year(s)2017Part NumberC11-00042-734Stock NumberP-55826 MLS Number12233511CategoryDifferentials, Front 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 Front Differential for a 2018 Freightliner Cascadia 125 Contact for price (Used) 2018 Freightliner Cascadia 125, COMPLETE FRONT REAR TANDEM- Part Number: C11-00042-501, Serial Number: 771AAC-A223772H, Make: Detroit, Model: RT40-4N, Ratio: 3.23, Capacity: 20,000... ConditionUsedRear End3.23 ratioFits To Make(s)FreightlinerFits To Model(s)Cascadia 125Will Fit Year(s)2018Part NumberC11-00042-501Stock NumberP-60018 MLS Number12332358CategoryDifferentials, Front 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 Front Differential for a 2018 Freightliner Cascadia 125 Contact for price (Used) 2018 Freightliner Cascadia 125, FRONT DIFFERENTIAL GEARS ONLY- Part Number: C11-00042-501, Serial Number:771AAC-A223772H, Make: Detroit, Model: RT40-4N, Ratio: 3.23, Capacity: 20,000... ConditionUsedRear End3.23 ratioFits To Make(s)FreightlinerFits To Model(s)Cascadia 125Will Fit Year(s)2018Part NumberC11-00042-501Stock NumberP-60023 MLS Number12332363CategoryDifferentials, Front Last Updated5/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 6 Photos View 0 Videos Detroit DA-RT-44.0-4 Front Differential for a 2017 Western Star 4700 Contact for price (Used) 2017 Western Star 4700, COMPLETE FRONT REAR TANDEM- Serial Number: 771AAC-A212468H, 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-493398 MLS Number14077573CategoryDifferentials, Front 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-44.0-4 Front Differential for a 2017 Western Star 4700 Contact for price (Used) 2017 Western Star 4700, FRONT DIFFERENTIAL GEARS ONLY- Serial Number: 771AAC-A212468H 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-493407 MLS Number14077582CategoryDifferentials, Front Last Updated5/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 6 Photos View 0 Videos Detroit RT40-NFD-N Front Differential for a 2021 Freightliner Cascadia 126 Contact for price (Used) 2021 Freightliner Cascadia 126, COMPLETE FRONT REAR TANDEM- Part Number: C11-00051-620, Serial Number: 771194A0115696, Make: Detroit, Model: RT40-NFD-N, 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-502270 MLS Number14319438CategoryDifferentials, Front 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 Front Differential for a 2021 Freightliner Cascadia 126 Contact for price (Used) 2021 Freightliner Cascadia 126, FRONT DIFFERENTIAL HOUSING ONLY- Part Number: C11-00051-620, Serial Number: 771194A0115696, Make: Detroit, Model: RT40-NFD-N, Ratio: 2.85, Capacity: 20... ConditionUsedRear End2.85 ratioFits To Make(s)FreightlinerFits To Model(s)Cascadia 126Will Fit Year(s)2021Part NumberC11-00051-620Stock NumberP-502272 MLS Number14319440CategoryDifferentials, Front Last Updated5/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 6 Photos View 0 Videos Detroit Front Differential for a 2020 Western Star 5700 Contact for price (Used) 2020 Western Star 5700, COMPLETE FRONT REAR TANDEM- Part Number: C11-00051-253, Serial Number: 771194A0060215, Make: Detroit, Model: RT40-NFD-N, Ratio: 2.41, Capacity: 20,000 Lbs, Hub... ConditionUsedRear End2.41 ratioFits To Make(s)Western StarFits To Model(s)5700Will Fit Year(s)2020Part NumberC11-00051-253Stock NumberP-494366 MLS Number14094403CategoryDifferentials, Front 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 Front Differential for a 2020 Western Star 5700 Contact for price (Used) 2020 Western Star 5700, FRONT DIFFERENTIAL GEARS ONLY- Part Number: C11-00051-253, Serial Number: 771194A0060215, 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-494369 MLS Number14094407CategoryDifferentials, Front Last Updated5/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 6 Photos View 0 Videos Detroit RT40-4N Front Differential for a 2017 Freightliner Cascadia 125 Contact for price (Used) 2017 Freightliner Cascadia 125, COMPLETE FRONT REAR TANDEM- Part Number: C11-00042-143, Serial Number: 771AAC-A207402H, 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-494572 MLS Number14097814CategoryDifferentials, Front 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 Front Differential for a 2017 Freightliner Cascadia 125 Contact for price (Used) 2017 Freightliner Cascadia 125, FRONT DIFFERENTIAL GEARS ONLY- Part Number: C11-00042-143, Serial Number: 771AAC-A207402H, 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-494579 MLS Number14097821CategoryDifferentials, Front Last Updated5/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 6 Photos View 0 Videos Detroit RT40-NFD Front Differential for a 2024 Freightliner Cascadia 116 Day Cab Contact for price (Used) 2024 Freightliner Cascadia 116 Day Cab, COMPLETE FRONT REAR TANDEM- Part Number: C11-00090-085, Serial Number: 771194B0413327, Make: Detroit, Model: RT40-NFD, Ratio: 3.58, Capacity:... ConditionUsedRear End3.58 ratioFits To Make(s)FreightlinerFits To Model(s)Cascadia 116 Day CabWill Fit Year(s)2024Part NumberC11-00090-085Stock NumberP-496178 MLS Number14130893CategoryDifferentials, Front 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 Front Differential for a 2024 Freightliner Cascadia 116 Day Cab Contact for price (Used) 2024 Freightliner Cascadia 116 Day Cab, FRONT DIFFERENTIAL GEARS ONLY- Part Number: C11-00090-085, Serial Number: 771194B0413327, Make: Detroit, Model: RT40-NFD, Ratio: 3.58, Capacity... ConditionUsedRear End3.58 ratioFits To Make(s)FreightlinerFits To Model(s)Cascadia 116 Day CabWill Fit Year(s)2024Part NumberC11-00090-085Stock NumberP-496180 MLS Number14130897CategoryDifferentials, Front Last Updated5/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 6 Photos View 0 Videos Detroit RT40-4N Front Differential for a 2014 Freightliner Cascadia 125 Contact for price (Used) 2014 Freightliner Cascadia 125, COMPLETE FRONT REAR TANDEM- Part Number: C11-00042-045, Serial Number: 771AAC-A112546H, 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-498544 MLS Number14166968CategoryDifferentials, Front Last Updated5/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 6 Photos View 0 Videos Detroit RT40-4N Front Differential for a 2014 Freightliner Cascadia 125 Contact for price (Used) 2014 Freightliner Cascadia 125, FRONT DIFFERENTIAL GEARS ONLY- Part Number: C11-00042-045, Serial Number: 771AAC-A112546H, 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-498546 MLS Number14166970CategoryDifferentials, Front Last Updated5/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 6 Photos View 0 Videos Detroit DA-RT-40.0-4S Front Differential $800 USD DA-RT40.0-4S Front (RT40-NFD) - 2.85 Ratio - Core - Grade D - Main Case Cracked, Gearset Broken Teeth, Noisy Power Divider, Side Gear Case Broken, Pinion Bearing Damaged. P/NC11-00051-620, S... ConditionUsedRear End2.85 ratioStock Number4540456 MLS Number13895715CategoryDifferentials, Front Last Updated4/14/2026 LocationFresno, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos Detroit DA-RT-40.0-4 Front Differential $800 USD DA-RT40.0-4 Front - 2.85 Ratio - Core - Grade D - Hole Crack In Case, Gearset Broken Teeth, Bearings Worn. CORE UNIT SOLD AS-IS ConditionUsedRear End2.85 ratioStock Number4540438 MLS Number13895691CategoryDifferentials, Front Last Updated4/14/2026 LocationFresno, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 8 Photos View 0 Videos Detroit DA-RT-40.0-4 Front Differential for a Unmarked N/A $800 USD DA-RT40.0-4 NFD (RT40-NFD Front) - 2.85 Ratio - Core - Grade D - Ring Pinion Have Broken Teeth. CORE UNIT SOLD AS-IS. ConditionUsedRear End2.85 ratioFits To Make(s)UnmarkedFits To Model(s)N/AStock Number4540027 MLS Number13894888CategoryDifferentials, Front Last Updated4/14/2026 LocationFresno, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 8 Photos View 0 Videos Detroit DA-RT-40.0-4S Front Differential for a Unmarked N/A $800 USD DA-RT40.0-4S (RT40-NFD Front) - 2.85 Ratio - Core - Grade D - Ring Pinion Have Broken Teeth, Hole In Main Case. CORE UNIT SOLD AS IS ConditionUsedRear End2.85 ratioFits To Make(s)UnmarkedFits To Model(s)N/AStock Number4540026 MLS Number13894887CategoryDifferentials, Front Last Updated4/14/2026 LocationFresno, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 6 Photos View 0 Videos 2019 Detroit DA-RT-40.0-4S Front Differential for a Freightliner Cascadia 126 $800 USD Core - DA-RT40.0-4S (RT40-NFD) Front - 3.08 Ratio - Core - Grade C - Rebuildable - Bad gear set, Case Looks good, missing retainer. Core Unit Sold As-Is. ConditionUsedRear End3.08 ratioFits To Make(s)FREIGHTLINERFits To Model(s)Cascadia 126Stock Number29242 MLS Number14303854CategoryDifferentials, Front Last Updated4/14/2026 LocationFresno, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos 2017 Detroit RT40.0-4 Front Differential for a Freightliner Cascadia $1,690 USD (USED) Detroit RT40.0-4 Ratio: 2.53 Side Gear Splines: 41 W/ Locker: NO Cast#: R6813510605 ConditionUsedFits To Make(s)FreightlinerFits To Model(s)CASCADIAStock Number25823041 MLS Number13699133CategoryDifferentials, Front Last Updated7/16/2025 LocationSpencer, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info