Detroit Rear Axle Assemblies For Sale

Detroit R21-4N Rear Axle Assembly for a 2017 Freightliner M2 106

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(Used) 2017 Freightliner M2 106, COMPLETE REAR DIFFERENTIAL- Part Number: C11-00008-319, Serial Number: 742821-A146375, Make: Detroit, Model: R21-4N, Ratio: 5.56, Capacity: 21,000 Lbs, ...

Condition	Used
Rear End	5.56 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	M2 106
Will Fit Year(s)	2017
Part Number	C11-00008-319
Stock Number	P-104032
MLS Number	13634141
Category	Axle Assemblies, Rear
Last Updated	2/9/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

2021 Detroit DART400-4SF Rear Axle Assembly

$3,475.24 USD

USED DETROIT DART 400-SF FRONT AXLE HOUSING ASSY

Condition	Used
Rear End	3.74 ratio
Fits To Make(s)	DETROIT
Fits To Model(s)	DART400-4SF
Capacity	40000
Stock Number	2399745
MLS Number	12978360
Category	Axle Assemblies, Rear
Last Updated	6/3/2025
Location	Henderson, CO, US
Sold By	LKQ Heavy Truck

2021 Detroit DART400-4R Rear Axle Assembly

$2,500.34 USD

Condition	Used
Rear End	3.74 ratio
Fits To Make(s)	DETROIT
Fits To Model(s)	DART400-4R
Capacity	40000
Stock Number	2399746
MLS Number	12809927
Category	Axle Assemblies, Rear
Last Updated	6/3/2025
Location	Henderson, CO, US
Sold By	LKQ Heavy Truck

2023 Detroit DART400-4R Rear Axle Assembly

$2,500.34 USD

DART40-RNFD, 2 BOLT ANGLE LEFT, AIR ABS, FRTLNR ALINER

Condition	Used
Rear End	2.85 ratio
Fits To Make(s)	DETROIT
Fits To Model(s)	DART400-4R
Capacity	20K
Stock Number	2384665
MLS Number	12749223
Category	Axle Assemblies, Rear
Last Updated	6/2/2025
Location	Toledo, OH, US
Sold By	LKQ Heavy Truck

2018 Detroit DART400-4R Rear Axle Assembly

$2,500.34 USD

DETROIT DART-400-4R 2.85 RATIO

Condition	Used
Rear End	2.85 ratio
Fits To Make(s)	DETROIT
Fits To Model(s)	DART400-4R
Capacity	40,000 LBS
Stock Number	2511313
MLS Number	13538096
Category	Axle Assemblies, Rear
Last Updated	6/2/2025
Location	Easton, MD, US
Sold By	LKQ Heavy Truck

2018 Detroit RS23-6N Rear Axle Assembly

$2,450 USD

DETROIT RS23-6N, 2.73 RATIO

Condition	Used
Rear End	2.73 ratio
Fits To Make(s)	DETROIT
Fits To Model(s)	RS23-6N
Capacity	23,000 LBS
Stock Number	R180803
MLS Number	12004234
Category	Axle Assemblies, Rear
Last Updated	6/2/2025
Location	Easton, MD, US
Sold By	LKQ Heavy Truck

Detroit RS23-6N Rear Axle Assembly

$2,450 USD

LOCKER DIFF, 2 BOLT ANGLE LEFT TOP BRACKET, STD TRACK, AL HUBS

Condition	Used
Rear End	2.53 ratio
Fits To Make(s)	DETROIT
Fits To Model(s)	RS23-6N
Capacity	23,000
Stock Number	2491037
MLS Number	13438870
Category	Axle Assemblies, Rear
Last Updated	6/2/2025
Location	Toledo, OH, US
Sold By	LKQ Heavy Truck

2022 Detroit DART400-4F Rear Axle Assembly

$1,995.24 USD

DET: DART40-4S HHNFD, 10 HUB PILOT, AIR ABS, FRTLNR AIRLINER, 2 BOLT RIGHT, 15+1 FLANGE,

Condition	Used
Rear End	2.85 ratio
Fits To Make(s)	DETROIT
Fits To Model(s)	DART400-4F
Capacity	20000
Stock Number	2270425
MLS Number	12147512
Category	Axle Assemblies, Rear
Last Updated	6/2/2025
Location	Toledo, OH, US
Sold By	LKQ Heavy Truck

2019 Detroit DART400-4N Rear Axle Assembly

$1,800.24 USD

Condition	Used
Rear End	2.64 ratio
Fits To Make(s)	DETROIT
Fits To Model(s)	DART400-4N
Capacity	40,000
Stock Number	2398649
MLS Number	12801408
Category	Axle Assemblies, Rear
Last Updated	6/6/2025
Location	Wykoff, MN, US
Sold By	LKQ Heavy Truck

2022 Detroit RT40-NFD Rear Axle Assembly

$1,800.24 USD

FRT AIRLINER 10 HUB PILOT HYD DISC BRAKE ABS RT40FNFD 2 BOLTRIGHT ANGLE, 15+1 FLANGE

Condition	Used
Rear End	2.85 ratio
Fits To Make(s)	DETROIT
Fits To Model(s)	RT40-NFD
Capacity	20000
Stock Number	2309894
MLS Number	12385959
Category	Axle Assemblies, Rear
Last Updated	6/2/2025
Location	Toledo, OH, US
Sold By	LKQ Heavy Truck

2019 Detroit RS21-4 Rear Axle Assembly

$1,475 USD

WITH DIFF

Condition	Used
Rear End	5.88 ratio
Fits To Make(s)	DETROIT
Fits To Model(s)	RS21-4
Capacity	21000
Stock Number	2228267
MLS Number	11901204
Category	Axle Assemblies, Rear
Last Updated	6/3/2025
Location	Athens, GA, US
Sold By	LKQ Heavy Truck

2019 Detroit DART400-4N Rear Axle Assembly

$1,080 USD

Condition	Used
Rear End	2.64 ratio
Fits To Make(s)	DETROIT
Fits To Model(s)	DART400-4N
Capacity	40,000
Stock Number	2398650
MLS Number	12801409
Category	Axle Assemblies, Rear
Last Updated	6/6/2025
Location	Wykoff, MN, US
Sold By	LKQ Heavy Truck

Detroit RT40-NFD Rear Axle Assembly for a 2023 Freightliner Cascadia 126

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(Used) 2023 Freightliner Cascadia 126, COMPLETE REAR REAR TANDEM- Part Number: C11-00051-620, Serial Number: 771195B0359122, Make: Detroit, Model: RT40-NFD, Ratio: 2.85, Capacity: 20,000 Lbs...

Condition	Used
Rear End	2.85 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	Cascadia 126
Will Fit Year(s)	2023
Part Number	C11-00051-620
Stock Number	P-102712
MLS Number	13601315
Category	Axle Assemblies, Rear
Last Updated	5/23/2025
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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

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(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...

Condition	Used
Rear End	5.56 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	M2 106
Will Fit Year(s)	2022
Part Number	C11-00007-208
Stock Number	P-102285
MLS Number	13583949
Category	Axle Assemblies, Rear
Last Updated	2/9/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

Detroit Rear Axle Assembly for a 2021 Freightliner M2 106

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(Used) 2021 Freightliner M2 106, COMPLETE REAR DIFFERENTIAL- Part Number: C11-000010-183, Serial Number: 742821-A0135454, Make: Detroit, Model: RS19-4N, Ratio: 4.78, Capacity: 23,000 Lbs, ...

Condition	Used
Rear End	4.78 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	M2 106
Will Fit Year(s)	2021
Part Number	C11-000010-183
Stock Number	P-99975
MLS Number	13506000
Category	Axle Assemblies, Rear
Last Updated	2/9/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

Detroit Rear Axle Assembly for a 2016 Freightliner M2 106

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(Used) 2016 Freightliner M2 106, COMPLETE REAR DIFFERENTIAL- Part Number: C11-00007-206, Serial Number: 742821-A130440, Make: Detroit, Model: R19-4N, Ratio: 5.56, Capacity: 19,000 Lbs, Hub...

Condition	Used
Rear End	5.56 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	M2 106
Will Fit Year(s)	2016
Part Number	C11-00007-206
Stock Number	P-99643
MLS Number	13498199
Category	Axle Assemblies, Rear
Last Updated	2/9/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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

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(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...

Condition	Used
Rear End	3.08 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	Cascadia 126
Will Fit Year(s)	2018
Part Number	C11-00042-390
Stock Number	P-97047
MLS Number	13413534
Category	Axle Assemblies, Rear
Last Updated	2/22/2025
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

Detroit Rear Axle Assembly for a 2020 Freightliner M2 106

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(Used) 2020 Freightliner M2 106, COMPLETE REAR DIFFERENTIAL- Part Number: C11-00009-160, Serial Number: 742821B0138932, Make: Detroit/Dana, Model: RS214, Ratio: 5.88, Capacity: 17,500 Lbs,...

Condition	Used
Rear End	5.88 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	M2 106
Will Fit Year(s)	2020
Part Number	C11-00009-160
Stock Number	P-96320
MLS Number	13375872
Category	Axle Assemblies, Rear
Last Updated	2/9/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

Detroit Rear Axle Assembly for a 2019 Freightliner Cascadia 126

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(Used) 2019 Freightliner Cascadia 126, COMPLETE REAR REAR TANDEM- Part Number: C11-00051-255, Serial Number: 771194A0016559, Make: Detroit, Model: RT40NFDN, Ratio: 2.28, Capacity: 20,000 Lbs...

Condition	Used
Rear End	2.28 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	Cascadia 126
Will Fit Year(s)	2019
Part Number	C11-00051-255
Stock Number	P-95538
MLS Number	13351887
Category	Axle Assemblies, Rear
Last Updated	1/21/2025
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

Detroit Rear Axle Assembly for a 2022 Freightliner M2 106

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(Used) 2022 Freightliner M2 106, COMPLETE REAR DIFFERENTIAL- Part Number: C11-00001-010, Serial Number: 742820B0269377, Make: Detroit, Model: RS17.5-2, Ratio: 5.71, Capacity: 21,000 Lbs, ...

Condition	Used
Rear End	5.71 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	M2 106
Will Fit Year(s)	2022
Part Number	C11-00001-010
Stock Number	P-92685
MLS Number	13248074
Category	Axle Assemblies, Rear
Last Updated	2/9/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

Detroit Rear Axle Assembly for a 2020 Freightliner M2 106

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(Used) 2020 Freightliner M2 106, COMPLETE REAR DIFFERENTIAL- Part Number: MBA6093508720R, Serial Number: 742821-0710688, Make: Detroit, Model: RSXX-4N, Ratio: 5.55, Capacity: 21,000 Lbs, ...

Condition	Used
Rear End	5.55 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	M2 106
Will Fit Year(s)	2020
Part Number	MBA6093508720R
Stock Number	P-90869
MLS Number	13198717
Category	Axle Assemblies, Rear
Last Updated	2/9/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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Detroit Rear Axle Assembly for a 2019 Freightliner M2 106

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Detroit DA-RS-21.0 Single Rear Differential Assembly For Sale 6.14 Ratio - Used - May have some cosmetic blemishes (see photos). Give us a shout by phone, email, or text. We ship everywhere....

Condition	Used
Rear End	6.14 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	M2 106
Will Fit Year(s)	2019
Stock Number	FR-0681-21
MLS Number	11156803
Category	Axle Assemblies, Rear
Last Updated	10/3/2024
Location	York, ON, Canada
Sold By	Lomoca Inc.

Detroit Rear Axle Assembly for a 2020 Freightliner M2 106

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(Used) 2010 Freightliner M2 106, COMPLETE REAR DIFFERENTIAL- Part Number: C11-00037-054, Serial Number: DRA19652326, Make: Detroit, Model: MS19-14X, Ratio: 5.86, Capacity: 19,000 Lbs, ...

Condition	Used
Rear End	5.86 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	M2 106
Will Fit Year(s)	2020
Part Number	C11-00037-054
Stock Number	P-88865
MLS Number	13143188
Category	Axle Assemblies, Rear
Last Updated	2/9/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

Detroit DA-RT-40.0-4 Rear Axle Assembly for a 2016 Freightliner Cascadia 125

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(Used) 2016 Freightliner Cascadia 125, COMPLETE REAR REAR TANDEM- Part Number: R6813510805, Serial Number: 771AAC-A176500T, Make: Detroit, Model: DA-RT-40.0-4, Ratio: 3.42, Capacity: 20,000...

Condition	Used
Rear End	3.42 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	Cascadia 125
Will Fit Year(s)	2016
Part Number	R6813510805
Stock Number	P-87299
MLS Number	13089851
Category	Axle Assemblies, Rear
Last Updated	9/4/2024
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts