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Detroit RS21-4 Axles & Differentials For Sale

Browse Detroit RS21-4 Axles & Differentials for sale on MyLittleSalesman.com. Compare prices, photos, and seller details across 22 listings. Detroit RS21-4 pricing ranges from $1,475 to $3,000 based on recent marketplace data. Filter by condition, price, or year to find the right Detroit RS21-4.
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Axles & Differentials (22)
   Axle Assemblies, Rear (8)    Axle Housings, Rear (7)    Differentials, Rear (7)
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Showing 1 - 22 of 22 Listings

1 - 22 of 22 listings
1 - 22 of 22 listings
Detroit RS21-4 Rear Differential for a 2024 Freightliner M2 106

Detroit RS21-4 Rear Differential for a 2024 Freightliner M2 106

Contact for price
(Used) 2024 Freightliner M2 106, DIFFERENTIAL GEARS ONLY- Part Number: C11-00007-034, Serial Number: 742821A0246287, Make: Detroit, Model: RS21-4, Ratio: 6.14, Capacity: 19,000 Lbs,...
ConditionUsed
Rear End6.14 ratio
Fits To Make(s)Freightliner
Fits To Model(s)M2 106
Will Fit Year(s)2024
Part NumberC11-00007-034
Stock NumberP-509112
MLS Number14490283
CategoryDifferentials, Rear
Last Updated7/17/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
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Detroit RS21-4 Rear Axle Housing for a 2024 Freightliner M2 106

Detroit RS21-4 Rear Axle Housing for a 2024 Freightliner M2 106

Contact for price
(Used) 2024 Freightliner M2 106, DIFFERENTIAL HOUSING ONLY- Part Number: C11-00007-034, Serial Number: 742821A0246287, Make: Detroit, Model: RS21-4, Ratio: 6.14, Capacity: 19,000 Lbs,...
ConditionUsed
Fits To Make(s)Freightliner
Fits To Model(s)M2 106
Will Fit Year(s)2024
Part NumberC11-00007-034
Stock NumberP-509110
MLS Number14490280
CategoryAxle Housings, Rear
Last Updated7/17/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
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CRG Heavy Truck Parts
Detroit RS21-4 Rear Axle Assembly for a 2024 Freightliner M2 106

Detroit RS21-4 Rear Axle Assembly for a 2024 Freightliner M2 106

Contact for price
(Used) 2024 Freightliner M2 106, COMPLETE REAR DIFFERENTIAL- Part Number: C11-00007-034, Serial Number: 742821A0246287, Make: Detroit, Model: RS21-4, Ratio: 6.14, Capacity: 19,000 Lbs, Hub...
ConditionUsed
Rear End6.14 ratio
Fits To Make(s)Freightliner
Fits To Model(s)M2 106
Will Fit Year(s)2024
Part NumberC11-00007-034
Stock NumberP-509104
MLS Number14490273
CategoryAxle Assemblies, Rear
Last Updated7/17/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
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CRG Heavy Truck Parts
Detroit RS21-4 Rear Axle Assembly for a 2024 Freightliner M2 106

Detroit RS21-4 Rear Axle Assembly for a 2024 Freightliner M2 106

$2,999.99 USD
(Used) 2024 Freightliner M2 106, COMPLETE REAR DIFFERENTIAL- Part Number: C11-00007-217, Serial Number: 742821A0267291, Make: Detroit, Model: RS21-4, Ratio: 5.56, Capacity: 19,000 Lbs, Hub...
ConditionUsed
Rear End5.56 ratio
Fits To Make(s)Freightliner
Fits To Model(s)M2 106
Will Fit Year(s)2024
Part NumberC11-00007-217
Stock NumberP-497939
MLS Number14157189
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 RS21-4 Rear Differential for a 2019 Freightliner M2 106

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,...
ConditionUsed
Rear End5.56 ratio
Fits To Make(s)Freightliner
Fits To Model(s)M2 106
Will Fit Year(s)2019
Part NumberC11-00007-217
Stock NumberP-501447
MLS Number14284100
CategoryDifferentials, 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 RS21-4 Rear Axle Assembly for a 2020 Freightliner M2 106

Detroit RS21-4 Rear Axle Assembly for a 2020 Freightliner M2 106

Contact for price
(Used) 2020 Freightliner M2 106, COMPLETE REAR DIFFERENTIAL- Part Number: C11-00007-109, Serial Number: 742821B0084685, Make: Detroit, Model: RS21-4, Ratio: 5.88, Capacity: 19,000 Lbs, Hub...
ConditionUsed
Rear End5.88 ratio
Fits To Make(s)Freightliner
Fits To Model(s)M2 106
Will Fit Year(s)2020
Part NumberC11-00007-109
Stock NumberP-502206
MLS Number14318216
CategoryAxle Assemblies, Rear
Last Updated7/3/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
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CRG Heavy Truck Parts
Detroit RS21-4 Rear Axle Housing for a 2020 Freightliner M2 106

Detroit RS21-4 Rear Axle Housing for a 2020 Freightliner M2 106

Contact for price
(Used) 2020 Freightliner M2 106, DIFFERENTIAL HOUSING ONLY- Part Number: C11-00007-109, Serial Number: 742821B0084685, Make: Detroit, Model: RS21-4, Ratio: 5.88, Capacity: 19,000 Lbs,...
ConditionUsed
Fits To Make(s)Freightliner
Fits To Model(s)M2 106
Will Fit Year(s)2020
Part NumberC11-00007-109
Stock NumberP-502208
MLS Number14318218
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 RS21-4 Rear Differential for a 2020 Freightliner M2 106

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,...
ConditionUsed
Rear End5.88 ratio
Fits To Make(s)Freightliner
Fits To Model(s)M2 106
Will Fit Year(s)2020
Part NumberC11-00007-109
Stock NumberP-502209
MLS Number14318219
CategoryDifferentials, Rear
Last Updated7/23/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
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CRG Heavy Truck Parts
Detroit RS21-4 Rear Axle Assembly for a 2022 Freightliner M2 106

Detroit RS21-4 Rear Axle Assembly for a 2022 Freightliner M2 106

Contact for price
(Used) 2022 Freightliner M2 106, COMPLETE REAR DIFFERENTIAL- Part Number: C11-00007-208, Serial Number: 742821B0235160, Make: Detroit, Model: RS21-4, Ratio: 5.56, Capacity: 19,000 Lbs, Hub...
ConditionUsed
Rear End5.56 ratio
Fits To Make(s)Freightliner
Fits To Model(s)M2 106
Will Fit Year(s)2022
Part NumberC11-00007-208
Stock NumberP-102285
MLS Number13583949
CategoryAxle Assemblies, 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 RS21-4 Rear Axle Housing for a 2022 Freightliner M2 106

Detroit RS21-4 Rear Axle Housing for a 2022 Freightliner M2 106

Contact for price
(Used) 2022 Freightliner M2 106, COMPLETE DIFFERENTIAL HOUSING ONLY- Part Number: C11-00007-208, Serial Number: 742821B0235160, Make: Detroit, Model: RS21-4, Ratio: 5.56, Capacity: 19,000...
ConditionUsed
Fits To Make(s)Freightliner
Fits To Model(s)M2 106
Will Fit Year(s)2022
Part NumberC11-00007-208
Stock NumberP-102286
MLS Number13583951
CategoryAxle Housings, 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 RS21-4 Rear Differential for a 2022 Freightliner M2 106

Detroit RS21-4 Rear Differential for a 2022 Freightliner M2 106

Contact for price
(Used) 2022 Freightliner M2 106, COMPLETE DIFFERENTIAL GEARS ONLY- Part Number: C11-00007-208, Serial Number: 742821B0235160, Make: Detroit, Model: RS21-4, Ratio: 5.56, Capacity: 19,000 Lbs,...
ConditionUsed
Rear End5.56 ratio
Fits To Make(s)Freightliner
Fits To Model(s)M2 106
Will Fit Year(s)2022
Part NumberC11-00007-208
Stock NumberP-102287
MLS Number13583952
CategoryDifferentials, 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 RS21-4 Rear Axle Assembly for a 2020 Freightliner M2 106

Detroit RS21-4 Rear Axle Assembly for a 2020 Freightliner M2 106

Contact for price
(Used) 2020 Freightliner M2 106, COMPLETE REAR DIFFERENTIAL- Part Number: C11-00007-208, Serial Number: 742821B0095274, Make: Detroit, Model: RS21-4, Ratio: 5.56, Capacity: 19,000 Lbs, Hub...
ConditionUsed
Rear End5.56 ratio
Fits To Make(s)Freightliner
Fits To Model(s)M2 106
Will Fit Year(s)2020
Part NumberC11-00007-208
Stock NumberP-495132
MLS Number14108417
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 RS21-4 Rear Axle Housing for a 2020 Freightliner M2 106

Detroit RS21-4 Rear Axle Housing for a 2020 Freightliner M2 106

Contact for price
(Used) 2020 Freightliner M2 106, DIFFERENTIAL HOUSING ONLY- Part Number: C11-00007-208, Serial Number: 742821B0095274, Make: Detroit, Model: RS21-4, Ratio: 5.56, Capacity: 19,000 Lbs,...
ConditionUsed
Fits To Make(s)Freightliner
Fits To Model(s)M2 106
Will Fit Year(s)2020
Part NumberC11-00007-208
Stock NumberP-495134
MLS Number14108419
CategoryAxle Housings, 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
Detroit RS21-4 Rear Differential for a 2020 Freightliner M2 106

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...
ConditionUsed
Rear End5.56 ratio
Fits To Make(s)Freightliner
Fits To Model(s)M2 106
Will Fit Year(s)2020
Part NumberC11-00007-208
Stock NumberP-495136
MLS Number14108422
CategoryDifferentials, 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 RS21-4 Rear Axle Assembly for a 2020 Freightliner M2 106

Detroit RS21-4 Rear Axle Assembly for a 2020 Freightliner M2 106

Contact for price
(Used) 2020 Freightliner M2 106, COMPLETE REAR DIFFERENTIAL- Part Number: C11-00009-160, Serial Number: 742821B0120691, Make: Detroit, Model: RS21-4, Ratio: 5.88, Capacity: 17,500 Lbs, Hub...
ConditionUsed
Rear End5.88 ratio
Fits To Make(s)Freightliner
Fits To Model(s)M2 106
Will Fit Year(s)2020
Part NumberC11-00009-160
Stock NumberP-496977
MLS Number14142541
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 RS21-4 Rear Axle Housing for a 2020 Freightliner M2 106

Detroit RS21-4 Rear Axle Housing for a 2020 Freightliner M2 106

Contact for price
(Used) 2020 Freightliner M2 106, DIFFERENTIAL HOUSING ONLY- Part Number: C11-00009-160, Serial Number: 742821B0120691, Make: Detroit, Model: RS21-4, Ratio: 5.88, Capacity: 17,500 Lbs,...
ConditionUsed
Fits To Make(s)Freightliner
Fits To Model(s)M2 106
Will Fit Year(s)2020
Part NumberC11-00009-160
Stock NumberP-496980
MLS Number14142544
CategoryAxle Housings, Rear
Last Updated7/7/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Detroit RS21-4 Rear Differential for a 2020 Freightliner M2 106

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...
ConditionUsed
Rear End5.88 ratio
Fits To Make(s)Freightliner
Fits To Model(s)M2 106
Will Fit Year(s)2020
Part NumberC11-00009-160
Stock NumberP-496981
MLS Number14142545
CategoryDifferentials, 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 RS21-4 Rear Axle Housing for a 2024 Freightliner M2 106

Detroit RS21-4 Rear Axle Housing for a 2024 Freightliner M2 106

Contact for price
(Used) 2024 Freightliner M2 106, DIFFERENTIAL HOUSING ONLY- Part Number: C11-00007-217, Serial Number: 742821A0267291, Make: Detroit, Model: RS21-4, Ratio: 5.56, Capacity: 19,000 Lbs,...
ConditionUsed
Fits To Make(s)Freightliner
Fits To Model(s)M2 106
Will Fit Year(s)2024
Part NumberC11-00007-217
Stock NumberP-497942
MLS Number14157192
CategoryAxle Housings, 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 RS21-4 Rear Differential for a 2024 Freightliner M2 106

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,...
ConditionUsed
Rear End5.56 ratio
Fits To Make(s)Freightliner
Fits To Model(s)M2 106
Will Fit Year(s)2024
Part NumberC11-00007-217
Stock NumberP-497944
MLS Number14157193
CategoryDifferentials, 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 RS21-4 Rear Axle Assembly for a 2019 Freightliner M2 106

Detroit RS21-4 Rear Axle Assembly for a 2019 Freightliner M2 106

Contact for price
(Used) 2019 Freightliner M2 106, COMPLETE REAR DIFFERENTIAL- Part Number: C11-00007-217, Serial Number: 742821B0055761, Make: Detroit, Model: RS21-4, Ratio: 5.56, Capacity: 21,000 Lbs, Hub...
ConditionUsed
Rear End5.56 ratio
Fits To Make(s)Freightliner
Fits To Model(s)M2 106
Will Fit Year(s)2019
Part NumberC11-00007-217
Stock NumberP-501444
MLS Number14284098
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 RS21-4 Rear Axle Housing for a 2019 Freightliner M2 106

Detroit RS21-4 Rear Axle Housing for a 2019 Freightliner M2 106

Contact for price
(Used) 2019 Freightliner M2 106, DIFFERENTIAL HOUSING ONLY- Part Number: C11-00007-217, Serial Number: 742821B0055761, Make: Detroit, Model: RS21-4, Ratio: 5.56, Capacity: 21,000 Lbs,...
ConditionUsed
Fits To Make(s)Freightliner
Fits To Model(s)M2 106
Will Fit Year(s)2019
Part NumberC11-00007-217
Stock NumberP-501445
MLS Number14284099
CategoryAxle Housings, 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
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