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Detroit RT40-4N Rear Axle Assemblies For Sale

Shop used Detroit RT40-4N Rear Axle Assemblies on MyLittleSalesman.com . Compare active listings with prices from $3,475 to $3,475. Sellers include CRG Heavy Truck Parts, Lomoca, and LKQ Heavy Truck. Filter by condition, price, or year to find the Detroit RT40-4N Rear Axle Assembly that fits your job.
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Axle Assemblies, Rear (11)
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RT40-4N (11)
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Showing 1 - 11 of 11 Rear Axle Assembly Listings

1 - 11 of 11 listings
1 - 11 of 11 listings
Detroit RT40-4N Rear Axle Assembly for a 2014 Freightliner Cascadia 125

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

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(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 Updated2/27/2026
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 Assembly for a 2017 Freightliner Cascadia 125

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

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(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 Updated1/18/2026
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 Assembly for a 2016 Western Star 5700

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

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Detroit DA-RT-40.0-4 HT Tandem Cutoff - Used - Ratio: 3.31 - Drum Brakes - Air Bag Suspension - 40,000 LBS Capacity, Part Number: 771AAC - RT40-4N Rear Rear Differential and ART40-4N Front...
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 Updated10/23/2025
Location
York, ON, Canada
Sold By
Lomoca Inc.
(833) 835-___  SHOW
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Lomoca Inc.
Detroit RT40-4N Rear Axle Assembly for a 2016 Western Star 5700

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

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(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 Updated9/30/2025
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 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-A241942T, 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-106456
MLS Number13685052
CategoryAxle Assemblies, Rear
Last Updated7/4/2025
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 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 Updated2/22/2025
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 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 Updated4/21/2024
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 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 Updated12/19/2023
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 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 Updated12/19/2023
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 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 Updated12/18/2023
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
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