Detroit Rear Differentials For Sale

26 - 50 of 300 listings

2019 Detroit RT40-NFDRR331 Rear Differential

$1,995.16 USD

ID WHEN OUT OF TRUCK

Condition	Used
Rear End	3.31 ratio
Fits To Make(s)	DETROIT
Fits To Model(s)	RT40-NFDRR331
Stock Number	2611937
MLS Number	14161232
Category	Differentials, Rear
Last Updated	7/29/2026
Location	Spokane Valley, WA, US
Sold By	LKQ Heavy Truck

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2023 Detroit RT40-NFD Rear Differential for a Western Star 49X

$1,926 USD

(USED) Detroit RT40-NFD Ratio: 3.23 Side Gear Splines: 40 W/ Locker: YES Cast#: R7753511205

Condition	Used
Fits To Make(s)	Western Star Trucks
Fits To Model(s)	49X
Stock Number	25755008
MLS Number	13491368
Category	Differentials, Rear
Last Updated	7/31/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

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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,...

Condition	Used
Rear End	4.78 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	M2 106
Will Fit Year(s)	2018
Part Number	C11-00042-031
Stock Number	P-509831
MLS Number	14506943
Category	Differentials, Rear
Last Updated	7/25/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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Detroit RT40-NFD Rear Differential for a 2019 Freightliner Cascadia 126

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(Used) 2019 Freightliner Cascadia 126, REAR DIFFERENTIAL HOUSING ONLY- Part Number: C11-00051-261, Serial Number: 771195B0012080, Make: Detroit, Model: RT40-NFD, Ratio: 2.85, Capacity:...

Condition	Used
Rear End	2.85 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	Cascadia 126
Will Fit Year(s)	2019
Part Number	C11-00051-261
Stock Number	P-509708
MLS Number	14504430
Category	Differentials, Rear
Last Updated	7/24/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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Detroit RS20-4N Rear Differential for a 2025 Freightliner M2 106

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(Used) 2025 Freightliner M2 106, DIFFERENTIAL GEARS ONLY- Part Number: C11-00008-319, Serial Number: 742821A0299881, Make: Detroit, Model: RS20-4N, 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)	2025
Part Number	C11-00008-319
Stock Number	P-509431
MLS Number	14495981
Category	Differentials, Rear
Last Updated	7/21/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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

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(Used) 2017 Freightliner M2 106, COMPLETE DIFFERENTIAL GEARS ONLY- 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-104034
MLS Number	13634143
Category	Differentials, Rear
Last Updated	7/22/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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2022 Detroit RT40-NFD Rear Differential for a Freightliner Cascadia

$1,575 USD

(USED) Detroit RT40-NFD Ratio: 2.85 Side Gear Splines: 40 W/ Locker: NO Cast#: R7753511205 Ref# 771195B0284200

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	CASCADIA
Part Number	771195B0284200
Stock Number	25466902
MLS Number	12209877
Category	Differentials, Rear
Last Updated	7/18/2026
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

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

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(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,...

Condition	Used
Rear End	6.14 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	M2 106
Will Fit Year(s)	2024
Part Number	C11-00007-034
Stock Number	P-509112
MLS Number	14490283
Category	Differentials, Rear
Last Updated	7/17/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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Detroit DA-RT-40.0-4S Rear Differential

$1,850 USD

DA-RT-40.0-4S Reat Rear-2.85 Ratio - Refurbished - 6 Month Warranty

Condition	Used
Rear End	2.85 ratio
Stock Number	DA-RT-40.0-4S-285-R
MLS Number	14420732
Category	Differentials, Rear
Last Updated	7/15/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

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

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(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...

Condition	Used
Rear End	2.85 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	Cascadia 126
Will Fit Year(s)	2019
Part Number	C11-00042-751
Stock Number	P-508686
MLS Number	14480339
Category	Differentials, Rear
Last Updated	7/13/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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Detroit RT40-4N Rear Differential

$950 USD

2.41,

Condition	Used
Stock Number	REAR-2327
MLS Number	14471116
Category	Differentials, Rear
Last Updated	7/8/2026
Location	LAKEVILLE, MN, US
Sold By	Manders Diesel

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2014 Detroit DARS-17.5-4R522 Rear Differential

$1,995.16 USD

Condition	Used
Rear End	5.22 ratio
Fits To Make(s)	DETROIT
Fits To Model(s)	DARS-17.5-4R522
Stock Number	2656650
MLS Number	14410184
Category	Differentials, Rear
Last Updated	7/3/2026
Location	Athens, GA, US
Sold By	LKQ Heavy Truck

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2020 Detroit RT40-NFDRR285 Rear Differential

$1,995.16 USD

Condition	Used
Rear End	2.85 ratio
Fits To Make(s)	DETROIT
Fits To Model(s)	RT40-NFDRR285
Stock Number	2643568
MLS Number	14413048
Category	Differentials, Rear
Last Updated	7/3/2026
Location	Toledo, OH, US
Sold By	LKQ Heavy Truck

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2022 Detroit RT40-NFDRR285 Rear Differential

$1,995.16 USD

Condition	Used
Rear End	2.85 ratio
Fits To Make(s)	DETROIT
Fits To Model(s)	RT40-NFDRR285
Stock Number	2660262
MLS Number	14419825
Category	Differentials, Rear
Last Updated	7/2/2026
Location	Spokane Valley, WA, US
Sold By	LKQ Heavy Truck

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2019 Detroit RT40-NFD Rear Differential for a Freightliner Cascadia

$1,540 USD

(USED) Detroit RT40-NFD Ratio: 2.16 Side Gear Splines: 40 W/ Locker: NO Cast#: R7753511205

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	CASCADIA
Stock Number	25800891
MLS Number	13604232
Category	Differentials, Rear
Last Updated	7/2/2026
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

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Detroit RT40-NFD Rear Differential for a 2022 Freightliner Cascadia 126

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(Used) 2022 Freightliner Cascadia 126, REAR DIFFERENTIAL GEARS ONLY- Part Number: C11-00051-620, Serial Number: 771195B0285682, Make: Detroit, Model: RT40-NFD, Ratio: 2.85, Capacity: 20,000...

Condition	Used
Rear End	2.85 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	Cascadia 126
Will Fit Year(s)	2022
Part Number	C11-00051-620
Stock Number	P-507515
MLS Number	14459352
Category	Differentials, Rear
Last Updated	7/1/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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2021 Detroit RT40-NFDRR241 Rear Differential

$2,395.16 USD

WITH OILER SYSTEM / ALM

Condition	Remanufactured
Rear End	2.41 ratio
Fits To Make(s)	DETROIT
Fits To Model(s)	RT40-NFDRR241
Stock Number	2387280
MLS Number	12960535
Category	Differentials, Rear
Last Updated	7/1/2026
Location	Toledo, OH, US
Sold By	LKQ Heavy Truck

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2020 Detroit RT40-NFD Rear Differential for a Freightliner Cascadia

$1,540 USD

(USED) Detroit RT40-NFD Ratio: 2.28 Side Gear Splines: 40 W/ Locker: NO Cast#: R7753511205 Ref# N/A

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	CASCADIA
Part Number	N/A
Stock Number	25775848
MLS Number	13495169
Category	Differentials, Rear
Last Updated	7/1/2026
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

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Detroit RT40-NFD Rear Differential for a 2020 Freightliner Cascadia 126

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(Used) 2020 Freightliner Cascadia 126, REAR DIFFERENTIAL GEARS ONLY- Part Number: C11-00051-628, Serial Number: 771195B0097386, Make: Detroit, Model: RT40-NFD, Ratio: 2.41, Capacity: 20,000...

Condition	Used
Rear End	2.41 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	Cascadia 126
Will Fit Year(s)	2020
Part Number	C11-00051-628
Stock Number	P-505107
MLS Number	14428074
Category	Differentials, Rear
Last Updated	6/30/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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Detroit DA-RT-40.0-4 Rear Differential for a 2018 Freightliner Cascadia 125

$2,295 USD

DA-RT-40 USED T.O, 3.31 RATIO, LOCKER. WILL INSPECT IN OUR GEAR SHOP. 90 DAY WARRANTY., Ratio: 3.31

Condition	Used
Rear End	3.31 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	Cascadia 125
Will Fit Year(s)	2018
Stock Number	61926-4
MLS Number	14454478
Category	Differentials, Rear
Last Updated	6/27/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

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Detroit RT40-NFDRR241 Rear Differential

$1,500.16 USD

NO OILER, NO LOCK

Condition	Used
Rear End	2.41 ratio
Fits To Make(s)	DETROIT
Fits To Model(s)	RT40-NFDRR241
Stock Number	2664826
MLS Number	14452535
Category	Differentials, Rear
Last Updated	6/26/2026
Location	Toledo, OH, US
Sold By	LKQ Heavy Truck

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Detroit RS19-4 Rear Differential for a 2020 Freightliner M2 106

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(Used) 2020 Freightliner M2 106, DIFFERENTIAL GEARS ONLY- Part Number: C11-00010-055, Serial Number: 742821B0086756, Make: Detroit, Model: RS19-4, Ratio: 5.88, Capacity: 23,000 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	C11-00010-055
Stock Number	P-507029
MLS Number	14450411
Category	Differentials, Rear
Last Updated	6/25/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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Detroit R21-4N Rear Differential for a 2016 Freightliner M2 106

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(Used) 2016 Freightliner M2 106, DIFFERENTIAL GEARS ONLY- Part Number: C11-00008-330, Serial Number: 742821-A137102, Make: Detroit, Model: R21-4N, Ratio: 5.56, Capacity: 20,000 Lbs,...

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	C11-00008-330
Stock Number	P-505197
MLS Number	14428162
Category	Differentials, Rear
Last Updated	6/14/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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Detroit RS20-4 Rear Differential for a 2021 Freightliner M2 106

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(Used) 2021 Freightliner M2 106, DIFFERENTIAL GEARS ONLY- Part Number: C11-00008-324, Serial Number: 742821B0183544, Make: Detroit, Model: RS20-4, 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)	2021
Part Number	C11-00008-324
Stock Number	P-504703
MLS Number	14427651
Category	Differentials, Rear
Last Updated	6/13/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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Detroit RS20-4 Rear Differential for a 2020 Freightliner M2 106

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(Used) 2020 Freightliner M2 106, DIFFERENTIAL GEARS ONLY- Part Number: C11-00008-326, Serial Number: 742821B0087651, Make: Detroit, Model: RS20-4, 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)	2020
Part Number	C11-00008-326
Stock Number	P-504070
MLS Number	14427048
Category	Differentials, Rear
Last Updated	6/13/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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Detroit Rear Differentials For Sale

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