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Detroit RT40-4N Axles & Differentials For Sale

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Truck Parts (75)
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Axles & Differentials (75)
   Axle Assemblies, Rear (12)    Axle Housings, Rear (22)    Differentials, Front (20)    Differentials, Rear (21)
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RT40-4N (75)
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Showing 1 - 25 of 75 Listings

1 - 25 of 75 listings
1 - 25 of 75 listings
Detroit RT40-4N Rear Differential for a 2018 Freightliner M2 106

Detroit RT40-4N Rear Differential for a 2018 Freightliner M2 106

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(Used) 2018 Freightliner M2 106, REAR DIFFERENTIAL GEARS ONLY- Part Number: C11-00042-031, Serial Number: 771AAC-A233152T, Make: Detroit, Model: RT40-4N, Ratio: 4.78, Capacity: 20,000 Lbs,...
ConditionUsed
Rear End4.78 ratio
Fits To Make(s)Freightliner
Fits To Model(s)M2 106
Will Fit Year(s)2018
Part NumberC11-00042-031
Stock NumberP-509831
MLS Number14506943
CategoryDifferentials, Rear
Last Updated7/25/2026
Location
Elkton, MD, US
Sold By
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Detroit RT40-4N Rear Axle Housing for a 2018 Freightliner M2 106

Detroit RT40-4N Rear Axle Housing for a 2018 Freightliner M2 106

Contact for price
(Used) 2018 Freightliner M2 106, REAR DIFFERENTIAL HOUSING ONLY- Part Number: C11-00042-031, Serial Number: 771AAC-A233152T, Make: Detroit, Model: RT40-4N, Ratio: 4.78, Capacity: 20,000 Lbs,...
ConditionUsed
Fits To Make(s)Freightliner
Fits To Model(s)M2 106
Will Fit Year(s)2018
Part NumberC11-00042-031
Stock NumberP-509829
MLS Number14506941
CategoryAxle Housings, Rear
Last Updated7/25/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
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Detroit RT40-4N Rear Axle Assembly for a 2018 Freightliner M2 106

Detroit RT40-4N Rear Axle Assembly for a 2018 Freightliner M2 106

Contact for price
(Used) 2018 Freightliner M2 106, COMPLETE REAR REAR TANDEM- Part Number: C11-00042-031, Serial Number: 771AAC-A233152T, Make: Detroit, Model: RT40-4N, Ratio: 4.78, Capacity: 20,000 Lbs, Hub...
ConditionUsed
Rear End4.78 ratio
Fits To Make(s)Freightliner
Fits To Model(s)M2 106
Will Fit Year(s)2018
Part NumberC11-00042-031
Stock NumberP-509824
MLS Number14506935
CategoryAxle Assemblies, Rear
Last Updated7/25/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
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Detroit RT40-4N Front Differential for a 2018 Freightliner M2 106

Detroit RT40-4N Front Differential for a 2018 Freightliner M2 106

Contact for price
(Used) 2018 Freightliner M2 106, FRONT DIFFERENTIAL GEARS ONLY- Part Number: C11-00042-031, Serial Number: 771AAC-A233152H, Make: Detroit, Model: RT40-4N, Ratio: 4.78, Capacity: 20,000 Lbs,...
ConditionUsed
Rear End4.78 ratio
Fits To Make(s)Freightliner
Fits To Model(s)M2 106
Will Fit Year(s)2018
Part NumberC11-00042-031
Stock NumberP-509818
MLS Number14506928
CategoryDifferentials, Front
Last Updated7/25/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
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Detroit RT40-4N Rear Axle Housing for a 2018 Freightliner M2 106

Detroit RT40-4N Rear Axle Housing for a 2018 Freightliner M2 106

Contact for price
(Used) 2018 Freightliner M2 106, FRONT DIFFERENTIAL HOUSING ONLY- Part Number: C11-00042-031, Serial Number: 771AAC-A233152H, Make: Detroit, Model: RT40-4N, Ratio: 4.78, Capacity: 20,000 Lbs...
ConditionUsed
Fits To Make(s)Freightliner
Fits To Model(s)M2 106
Will Fit Year(s)2018
Part NumberC11-00042-031
Stock NumberP-509816
MLS Number14506926
CategoryAxle Housings, Rear
Last Updated7/25/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
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Detroit RT40-4N Front Differential for a 2018 Freightliner M2 106

Detroit RT40-4N Front Differential for a 2018 Freightliner M2 106

Contact for price
(Used) 2018 Freightliner M2 106, COMPLETE FRONT REAR TANDEM- Part Number: C11-00042-031, Serial Number: 771AAC-A233152H, Make: Detroit, Model: RT40-4N, Ratio: 4.78, Capacity: 20,000 Lbs, Hub...
ConditionUsed
Rear End4.78 ratio
Fits To Make(s)Freightliner
Fits To Model(s)M2 106
Will Fit Year(s)2018
Part NumberC11-00042-031
Stock NumberP-509813
MLS Number14506923
CategoryDifferentials, Front
Last Updated7/26/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
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Detroit RT40-4N Rear Differential for a 2019 Freightliner Cascadia 126

Detroit RT40-4N Rear Differential for a 2019 Freightliner Cascadia 126

Contact for price
(Used) 2019 Freightliner Cascadia 126, REAR DIFFERENTIAL GEARS ONLY- Part Number: C11-00042-751, Serial Number: 771198B0036937, Make: Detroit, Model: RT40-4N, Ratio: 2.85, Capacity: 20,000...
ConditionUsed
Rear End2.85 ratio
Fits To Make(s)Freightliner
Fits To Model(s)Cascadia 126
Will Fit Year(s)2019
Part NumberC11-00042-751
Stock NumberP-508686
MLS Number14480339
CategoryDifferentials, Rear
Last Updated7/13/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
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Detroit RT40-4N Rear Axle Housing for a 2019 Freightliner Cascadia 126

Detroit RT40-4N Rear Axle Housing for a 2019 Freightliner Cascadia 126

Contact for price
(Used) 2019 Freightliner Cascadia 126, REAR DIFFERENTIAL HOUSING ONLY- Part Number: C11-00042-751, Serial Number: 771198B0036937, Make: Detroit, Model: RT40-4N, Ratio: 2.85, Capacity: 20,000...
ConditionUsed
Fits To Make(s)Freightliner
Fits To Model(s)Cascadia 126
Will Fit Year(s)2019
Part NumberC11-00042-751
Stock NumberP-508685
MLS Number14480338
CategoryAxle Housings, Rear
Last Updated7/13/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
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Detroit RT40-4N Rear Axle Assembly for a 2019 Freightliner Cascadia 126

Detroit RT40-4N Rear Axle Assembly for a 2019 Freightliner Cascadia 126

Contact for price
(Used) 2019 Freightliner Cascadia 126, COMPLETE REAR REAR TANDEM- Part Number: C11-00042-751, Serial Number: 771198B0036937, Make: Detroit, Model: RT40-4N, Ratio: 2.85, Capacity: 20,000 Lbs,...
ConditionUsed
Rear End2.85 ratio
Fits To Make(s)Freightliner
Fits To Model(s)Cascadia 126
Will Fit Year(s)2019
Part NumberC11-00042-751
Stock NumberP-508684
MLS Number14480337
CategoryAxle Assemblies, Rear
Last Updated7/13/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
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CRG Heavy Truck Parts
Detroit RT40-4N Front Differential for a 2019 Freightliner Cascadia 126

Detroit RT40-4N Front Differential for a 2019 Freightliner Cascadia 126

Contact for price
(Used) 2019 Freightliner Cascadia 126, FRONT DIFFERENTIAL GEARS ONLY- Part Number: C11-00042-751, Serial Number: 771199B0036936, Make: Detroit, Model: RT40-4N, Ratio: 2.85, Capacity: 20,000...
ConditionUsed
Rear End2.85 ratio
Fits To Make(s)Freightliner
Fits To Model(s)Cascadia 126
Will Fit Year(s)2019
Part NumberC11-00042-751
Stock NumberP-508678
MLS Number14480332
CategoryDifferentials, Front
Last Updated7/13/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
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CRG Heavy Truck Parts
Detroit RT40-4N Rear Axle Housing for a 2019 Freightliner Cascadia 126

Detroit RT40-4N Rear Axle Housing for a 2019 Freightliner Cascadia 126

Contact for price
(Used) 2019 Freightliner Cascadia 126, FRONT DIFFERENTIAL HOUSING ONLY- Part Number: C11-00042-751, Serial Number: 771199B0036936, Make: Detroit, Model: RT40-4N, Ratio: 2.85, Capacity:...
ConditionUsed
Fits To Make(s)Freightliner
Fits To Model(s)Cascadia 126
Will Fit Year(s)2019
Part NumberC11-00042-751
Stock NumberP-508677
MLS Number14480331
CategoryAxle Housings, Rear
Last Updated7/13/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
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CRG Heavy Truck Parts
Detroit RT40-4N Front Differential for a 2019 Freightliner Cascadia 126

Detroit RT40-4N Front Differential for a 2019 Freightliner Cascadia 126

Contact for price
(Used) 2019 Freightliner Cascadia 126, COMPLETE FRONT REAR TANDEM- Part Number: C11-00042-751, Serial Number: 771199B0036936, Make: Detroit, Model: RT40-4N, Ratio: 2.85, Capacity: 20,000 Lbs...
ConditionUsed
Rear End2.85 ratio
Fits To Make(s)Freightliner
Fits To Model(s)Cascadia 126
Will Fit Year(s)2019
Part NumberC11-00042-751
Stock NumberP-508676
MLS Number14480330
CategoryDifferentials, Front
Last Updated7/14/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
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Detroit RT40-4N Rear Axle Housing for a 2014 Freightliner Cascadia 125

Detroit RT40-4N Rear Axle Housing for a 2014 Freightliner Cascadia 125

Contact for price
(Used) 2014 Freightliner Cascadia 125, FRONT DIFFERENTIAL HOUSING ONLY- Part Number: C11-00042-045, Serial Number: 771AAC-A112546H, Make: Detroit, Model: RT40-4N, Ratio: 2.53, Capacity:...
ConditionUsed
Fits To Make(s)Freightliner
Fits To Model(s)Cascadia 125
Will Fit Year(s)2014
Part NumberC11-00042-045
Stock NumberP-498545
MLS Number14166969
CategoryAxle Housings, Rear
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
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Detroit RT40-4N Front Differential for a 2014 Freightliner Cascadia 125

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...
ConditionUsed
Rear End2.53 ratio
Fits To Make(s)Freightliner
Fits To Model(s)Cascadia 125
Will Fit Year(s)2014
Part NumberC11-00042-045
Stock NumberP-498546
MLS Number14166970
CategoryDifferentials, Front
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
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Detroit RT40-4N Rear Axle Assembly for a 2014 Freightliner Cascadia 125

Detroit RT40-4N Rear Axle Assembly for a 2014 Freightliner Cascadia 125

Contact for price
(Used) 2014 Freightliner Cascadia 125, COMPLETE REAR REAR TANDEM- Part Number: C11-00042-045, Serial Number: 771AAC-A112546T, Make: Detroit, Model: RT40-4N, Ratio: 2.53, Capacity: 20,000 Lbs...
ConditionUsed
Rear End2.53 ratio
Fits To Make(s)Freightliner
Fits To Model(s)Cascadia 125
Will Fit Year(s)2014
Part NumberC11-00042-045
Stock NumberP-498550
MLS Number14166975
CategoryAxle Assemblies, Rear
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
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CRG Heavy Truck Parts
Detroit RT40-4N Rear Axle Housing for a 2014 Freightliner Cascadia 125

Detroit RT40-4N Rear Axle Housing for a 2014 Freightliner Cascadia 125

Contact for price
(Used) 2014 Freightliner Cascadia 125, REAR DIFFERENTIAL HOUSING ONLY- Part Number: C11-00042-045, Serial Number: 771AAC-A112546T, Make: Detroit, Model: RT40-4N, Ratio: 2.53, Capacity:...
ConditionUsed
Fits To Make(s)Freightliner
Fits To Model(s)Cascadia 125
Will Fit Year(s)2014
Part NumberC11-00042-045
Stock NumberP-498551
MLS Number14166976
CategoryAxle Housings, Rear
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
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CRG Heavy Truck Parts
Detroit RT40-4N Rear Differential for a 2014 Freightliner Cascadia 125

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...
ConditionUsed
Rear End2.53 ratio
Fits To Make(s)Freightliner
Fits To Model(s)Cascadia 125
Will Fit Year(s)2014
Part NumberC11-00042-045
Stock NumberP-498552
MLS Number14166977
CategoryDifferentials, Rear
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
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Detroit RT40-4N Front Differential for a 2016 Western Star 5700

Detroit RT40-4N Front Differential for a 2016 Western Star 5700

Contact for price
(Used) 2016 Western Star 5700, COMPLETE FRONT REAR TANDEM- Part Number: C11-00042-503, Serial Number: 771AAC-A178020H, Make: Detroit, Model: RT40-4N, Ratio: 3.08, Capacity: 20,000 Lbs, Hub...
ConditionUsed
Rear End3.08 ratio
Fits To Make(s)Western Star
Fits To Model(s)5700
Will Fit Year(s)2016
Part NumberC11-00042-503
Stock NumberP-500745
MLS Number14260685
CategoryDifferentials, Front
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
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Detroit RT40-4N Front Differential for a 2018 Western Star 5700

Detroit RT40-4N Front Differential for a 2018 Western Star 5700

Contact for price
(Used) 2018 Western Star 5700, COMPLETE FRONT REAR TANDEM- Part Number: C11-00042-143, Serial Number: 771AAC-A242503H, Make: Detroit, Model: RT40-4N, Ratio: 3.08, Capacity: 20,000 Lbs, Hub...
ConditionUsed
Rear End3.08 ratio
Fits To Make(s)Western Star
Fits To Model(s)5700
Will Fit Year(s)2018
Part NumberC11-00042-143
Stock NumberP-501131
MLS Number14273819
CategoryDifferentials, Front
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
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Detroit RT40-4N Rear Axle Housing for a 2018 Western Star 5700

Detroit RT40-4N Rear Axle Housing for a 2018 Western Star 5700

Contact for price
(Used) 2018 Western Star 5700, FRONT DIFFERENTIAL HOUSING ONLY- Part Number: C11-00042-143, Serial Number: 771AAC-A242503H, Make: Detroit, Model: RT40-4N, Ratio: 3.08, Capacity: 20,000 Lbs,...
ConditionUsed
Fits To Make(s)Western Star
Fits To Model(s)5700
Will Fit Year(s)2018
Part NumberC11-00042-143
Stock NumberP-501132
MLS Number14273820
CategoryAxle Housings, Rear
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
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CRG Heavy Truck Parts
Detroit RT40-4N Front Differential for a 2018 Western Star 5700

Detroit RT40-4N Front Differential for a 2018 Western Star 5700

Contact for price
(Used) 2018 Western Star 5700, FRONT DIFFERENTIAL GEARS ONLY- Part Number: C11-00042-143, Serial Number: 771AAC-A242503H, Make: Detroit, Model: RT40-4N, Ratio: 3.08, Capacity: 20,000 Lbs,...
ConditionUsed
Rear End3.08 ratio
Fits To Make(s)Western Star
Fits To Model(s)5700
Will Fit Year(s)2018
Part NumberC11-00042-143
Stock NumberP-501133
MLS Number14273821
CategoryDifferentials, Front
Last Updated7/11/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
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CRG Heavy Truck Parts
Detroit RT40-4N Rear Axle Assembly for a 2018 Western Star 5700

Detroit RT40-4N Rear Axle Assembly for a 2018 Western Star 5700

Contact for price
(Used) 2018 Western Star 5700, COMPLETE REAR REAR TANDEM- Part Number: C11-00042-143, Serial Number: 771AAC-A242503T, Make: Detroit, Model: RT40-4N, Ratio: 3.08, Capacity: 20,000 Lbs, Hub...
ConditionUsed
Rear End3.08 ratio
Fits To Make(s)Western Star
Fits To Model(s)5700
Will Fit Year(s)2018
Part NumberC11-00042-143
Stock NumberP-501136
MLS Number14273824
CategoryAxle Assemblies, Rear
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
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CRG Heavy Truck Parts
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