1. Home
  2. For Sale
  3. Truck Parts
  4. Axles & Differentials
  5. Axle Assemblies, Rear
  6. Detroit
  7. RT40-4N

Detroit RT40-4N Rear Axle Assemblies For Sale

Browse Detroit RT40-4N Rear Axle Assemblies for sale on MyLittleSalesman.com. Compare prices, photos, and seller details across 13 listings. Detroit RT40-4N Rear Axle Assembly pricing ranges from $3,475 to $3,475 based on recent marketplace data. Filter by condition, price, or year to find the right Detroit RT40-4N Rear Axle Assembly.
Close
Your Current Search
Industry
Truck Parts
Top-Category
Axles & Differentials
Category
Axle Assemblies, Rear
Manufacturer
Detroit
Model
RT40-4N
Click the to remove the filter.
Save Search
Email Alert
What's Save Search and Email Alert?
Narrow Your Search
Keyword Search
Search within the selected criteria
Equipment Type
Truck Parts (13)
Category
   Axle Assemblies, Rear (13)
Make
Detroit (13)
Model
RT40-4N (13)
Condition
Used (13)
Model Year
-
Horsepower
-
Inspection Report
Yes (0)
Warranty
Yes (0)
No (0)
Price
-
Country
State / Region
Select a country to view available states.
Seller Type
Dealerships (13)
Market Type
For Sale (13)

Quick Filters

Showing 1 - 13 of 13 Rear Axle Assembly Listings

1 - 13 of 13 listings
1 - 13 of 13 listings
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
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
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
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Detroit RT40-4N Rear Axle Assembly for a 2016 Western Star 5700

Detroit RT40-4N Rear Axle Assembly for a 2016 Western Star 5700

Contact for price
Detroit DA-RT-40.0-4 HT Tandem Cutoff - Used - Ratio: 3.31 - Drum Brakes - Air Bag Suspension - 40,000 LBS Capacity, Power Divider is Locker, Part Number: 771AAC - RT40-4N Rear Rear...
ConditionUsed
Fits To Make(s)Western Star
Fits To Model(s)5700
Will Fit Year(s)2016
Part NumberDA-RT-40.4 HT
Stock NumberWS-0796-26
MLS Number12227072
CategoryAxle Assemblies, Rear
Last Updated6/13/2026
Location
York, ON, Canada
Sold By
Lomoca Inc.
(833) 835-___  SHOW
NUMBERCall Seller
Email Seller
Save
Lomoca Inc.
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- Make: Detroit, Model: RT40-4N, Ratio: 3.31, Capacity: 20,000 Lbs, Hub Bolts: 10, Brake Type: Drum Serial Number:...
ConditionUsed
Rear End3.31 ratio
Fits To Make(s)Freightliner
Fits To Model(s)Cascadia 125
Will Fit Year(s)2014
Stock NumberP-42167
MLS Number11942380
CategoryAxle Assemblies, Rear
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Detroit RT40-4N Rear Axle Assembly for a 2017 Freightliner Cascadia 125

Detroit RT40-4N Rear Axle Assembly for a 2017 Freightliner Cascadia 125

Contact for price
(Used) 2017 Freightliner Cascadia 125, COMPLETE REAR REAR TANDEM- Part Number: C11-00042-734, Serial Number: 771AAC-A210439T, Make: Detroit, Model: RT40-4N, Ratio: 2.41, Capacity: 20,000...
ConditionUsed
Rear End2.41 ratio
Fits To Make(s)Freightliner
Fits To Model(s)Cascadia 125
Will Fit Year(s)2017
Part NumberC11-00042-734
Stock NumberP-55832
MLS Number12233517
CategoryAxle Assemblies, Rear
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Detroit RT40-4N Rear Axle Assembly for a 2018 Freightliner Cascadia 125

Detroit RT40-4N Rear Axle Assembly for a 2018 Freightliner Cascadia 125

Contact for price
(Used) 2018 Freightliner Cascadia 125, COMPLETE REAR REAR TANDEM- Part Number: C11-00042-501, Serial Number: 771AAC-A223772T, Make: Detroit, Model: RT40-4N, Ratio: 3.23, Capacity: 20,000...
ConditionUsed
Rear End3.23 ratio
Fits To Make(s)Freightliner
Fits To Model(s)Cascadia 125
Will Fit Year(s)2018
Part NumberC11-00042-501
Stock NumberP-60028
MLS Number12332368
CategoryAxle Assemblies, Rear
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Detroit RT40-4N Rear Axle Assembly for a 2016 Western Star 5700

Detroit RT40-4N Rear Axle Assembly for a 2016 Western Star 5700

Contact for price
(Used) 2016 Western Star 5700, COMPLETE REAR REAR TANDEM- Part Number: C11-00042-503, Serial Number: 771AAC-A178020T, 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-78053
MLS Number12790322
CategoryAxle Assemblies, Rear
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Detroit RT40-4N Rear Axle Assembly for a 2018 Freightliner Cascadia 126

Detroit RT40-4N Rear Axle Assembly for a 2018 Freightliner Cascadia 126

Contact for price
(Used) 2018 Freightliner Cascadia 126, COMPLETE REAR REAR TANDEM- Part Number: C11-00042-390, Serial Number: 771AAC-A239971T, Make: Detroit, Model: RT40-4N, Ratio: 3.08, Capacity: 20,000...
ConditionUsed
Rear End3.08 ratio
Fits To Make(s)Freightliner
Fits To Model(s)Cascadia 126
Will Fit Year(s)2018
Part NumberC11-00042-390
Stock NumberP-97047
MLS Number13413534
CategoryAxle Assemblies, Rear
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Detroit RT40-4N Rear Axle Assembly for a 2016 Western Star 5700

Detroit RT40-4N Rear Axle Assembly for a 2016 Western Star 5700

Contact for price
(Used) 2016 Western Star 5700, COMPLETE REAR REAR TANDEM- Part Number: C11-00042-618, Serial Number: 771AAC-A187523T, 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 NumberC11-00042-618
Stock NumberP-112064
MLS Number13856139
CategoryAxle Assemblies, Rear
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Detroit RT40-4N Rear Axle Assembly for a 2017 Freightliner Cascadia 125

Detroit RT40-4N Rear Axle Assembly for a 2017 Freightliner Cascadia 125

Contact for price
(Used) 2017 Freightliner Cascadia 125, COMPLETE REAR REAR TANDEM- Part Number: C11-00042-143, Serial Number: 771AAC-A207402T, Make: Detroit, Model: RT40-4N, Ratio: 3.08, Capacity: 20,000 Lbs...
ConditionUsed
Rear End3.08 ratio
Fits To Make(s)Freightliner
Fits To Model(s)Cascadia 125
Will Fit Year(s)2017
Part NumberC11-00042-143
Stock NumberP-494583
MLS Number14097825
CategoryAxle Assemblies, Rear
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
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
NUMBERCall Seller
Email Seller
Save
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
Save
CRG Heavy Truck Parts
Save Search
Email Alert
What's Save Search and Email Alert?
Want to narrow or modify your search criteria?
Filter by Price
Filter by Year
Filter by Location
Filter by Model
Filter by Keyword
Modify your search
Did you find what you were looking for? Yes No
Got a rear axle assembly to sell? In minutes, you can create an online listing for your rear axle assembly and advertise it to thousands of buyers.
Start selling today