Detroit Rear Differentials For Sale

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Detroit DA-RT-40.0-4 Rear Differential for a 2016 Western Star 5700XE

Contact for price

MILES 822659, Ratio: 308

Condition	Used
Rear End	3.08 ratio
Fits To Make(s)	Western Star
Fits To Model(s)	5700XE
Will Fit Year(s)	2016
Stock Number	HP6555-4
MLS Number	14423727
Category	Differentials, Rear
Last Updated	6/13/2026
Location	Farr West, UT, US
Sold By	Rocky Mountain Truck Parts

(855) 794-___ SHOW
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2021 Detroit DA-RT40.0-4T Rear Differential for a Freightliner Cascadia 126

$1,500 USD

DA-RT-40.0-4T (RT40-NFD) Rear - 2.16 Ratio - Pullout - Grade A - Baffle has hole, needs to be replaced. Unit Is In Good Condition. DIFF ONLY, HOUSING SOLD SEPARATELY.

Condition	Used
Rear End	2.16 ratio
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	Cascadia 126
Stock Number	4265-6
MLS Number	13965800
Category	Differentials, Rear
Last Updated	6/9/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

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2022 Detroit DA-RS-20.0-4 Rear Differential for a Freightliner M2 106

$1,500 USD

DA-RS-20.0-4 (RS20-4) - 5.56 Ratio - Pullout - DIFF ONLY, HOUSING SOLD SEPARATELY.

Condition	Used
Rear End	5.56 ratio
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	M2 106
Stock Number	1775-3
MLS Number	13895495
Category	Differentials, Rear
Last Updated	6/9/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

2020 Detroit RT40-NFDRR308 Rear Differential

$1,995.16 USD

RT40-NFD, 3.08 RATIO, R7753511205

Condition	Used
Rear End	3.08 ratio
Fits To Make(s)	DETROIT
Fits To Model(s)	RT40-NFDRR308
Stock Number	2600344
MLS Number	14108131
Category	Differentials, Rear
Last Updated	5/27/2026
Location	Easton, MD, US
Sold By	LKQ Heavy Truck

2020 Detroit RT40-NFDRR323 Rear Differential

$1,500.16 USD

RT40-4R3.23 REAR DIFFERENTIAL

Condition	Used
Rear End	3.23 ratio
Fits To Make(s)	DETROIT
Fits To Model(s)	RT40-NFDRR323
Stock Number	2602065
MLS Number	14277479
Category	Differentials, Rear
Last Updated	5/19/2026
Location	Henderson, CO, US
Sold By	LKQ Heavy Truck

2015 Detroit DARS-21.0-4R556 Rear Differential

$650 USD

DARS21.04-5.56

Condition	Used
Rear End	5.56 ratio
Fits To Make(s)	DETROIT
Fits To Model(s)	DARS-21.0-4R556
Stock Number	2566745
MLS Number	14191243
Category	Differentials, Rear
Last Updated	5/19/2026
Location	Henderson, CO, US
Sold By	LKQ Heavy Truck

(844) 402-___ SHOW
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Detroit RT40-NFD Rear Differential for a 2019 Freightliner Cascadia 126

Contact for price

(Used) 2019 Freightliner Cascadia 126, REAR DIFFERENTIAL GEARS ONLY- Part Number: C11-00051-255, Serial Number: 771195B0064526, Make: Detroit, Model: RT40-NFD, Ratio: 2.28, Capacity: 20,000...

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-503352
MLS Number	14373198
Category	Differentials, Rear
Last Updated	5/15/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

2020 Detroit RTL40-NFDRR285 Rear Differential

$1,750.16 USD

Condition	Used
Rear End	2.85 ratio
Fits To Make(s)	DETROIT
Fits To Model(s)	RTL40-NFDRR285
Stock Number	2613961
MLS Number	14222317
Category	Differentials, Rear
Last Updated	5/15/2026
Location	Wykoff, MN, US
Sold By	LKQ Heavy Truck

2020 Detroit RT40-NFDRR285 Rear Differential

$2,395.16 USD

Condition	Remanufactured
Rear End	2.85 ratio
Fits To Make(s)	DETROIT
Fits To Model(s)	RT40-NFDRR285
Stock Number	2566221
MLS Number	14119704
Category	Differentials, Rear
Last Updated	5/15/2026
Location	Toledo, OH, US
Sold By	LKQ Heavy Truck

Detroit DA-RT40.0-4S Rear Differential for a 2020 Freightliner Cascadia 126

$2,295 USD

DART 400-4S 2.85 RATIO RR, Ratio: 2.85

Condition	Used
Rear End	2.85 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	Cascadia 126
Will Fit Year(s)	2020
Stock Number	111225-5
MLS Number	13980298
Category	Differentials, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Detroit Rear Differential for a 2022 Western Star 5700

$2,295 USD

DART40 RR LATE 2.85 INSPECTED IN OUR GEAR SHOP 90 DAY WARRANTY, Ratio: 2.85

Condition	Used
Rear End	2.85 ratio
Fits To Make(s)	Western Star
Fits To Model(s)	5700
Will Fit Year(s)	2022
Stock Number	92325-2
MLS Number	13867447
Category	Differentials, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Detroit DA-RT-40.0-4 Rear Differential for a 2014 Freightliner Cascadia 125

Contact for price

DART400 RR 2.53 INSPECTED IN OUR GEAR SHOP 90 DAY WARRANTY, Ratio: 2.53

Condition	Used
Rear End	2.53 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	Cascadia 125
Will Fit Year(s)	2014
Stock Number	82625-2
MLS Number	13784451
Category	Differentials, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Detroit DA-RT-40.0-4S Rear Differential for a 2013 Freightliner Cascadia 125

$895 USD

GOOD INSPECTED TAKEOUT,90 DAY WARRANTY EXCHANGE, Core Charge: 250, Ratio: 342

Condition	Used
Rear End	3.42 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	Cascadia 125
Will Fit Year(s)	2013
Part Number	ART40
Stock Number	60225-3
MLS Number	13667997
Category	Differentials, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Detroit DA-RT-40.0-4 Rear Differential for a 2022 Freightliner Cascadia 126

$1,895 USD

DART400 2.85 REAR, LOW MILE, WILL INSPECT IN OUR GEAR SHOP, 90 DAY WARRANTY, Ratio: 2.85

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	DART400
Stock Number	61023-18
MLS Number	13491626
Category	Differentials, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Detroit Rear Differential for a 2019 Freightliner Cascadia 126

$2,295 USD

DART400 RR 228 LOCKER,GOOD INSPECTED TAKEOUT. 90 DAY WARRANTY EXCHANGE, Core Charge: 400.00, Ratio: 2.28

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	D-ART400 REAR REAR LOCKER
Stock Number	21125-4
MLS Number	13422933
Category	Differentials, Rear
Last Updated	6/13/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Detroit Rear Differential for a 2022 Freightliner Cascadia 126

$1,795 USD

DART400 3.08 GOOD INSPECTED TAKEOUT, 90 DAY WARRANTY EXCHANGE, Core Charge: 300, Ratio: 3.08

Condition	Used
Rear End	3.08 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	Cascadia 126
Will Fit Year(s)	2022
Part Number	D-ART400
Stock Number	21725-4
MLS Number	13417079
Category	Differentials, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Detroit DA-RT-40.0-4 Rear Differential for a 2022 Freightliner Cascadia 126

$1,895 USD

DART400 REAR 3.08, 132K MILES, INSPECTED IN OUR GEAR SHOP, 90 DAY WARRANTY, Ratio: 3.08

Condition	Used
Rear End	3.08 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	Cascadia 126
Will Fit Year(s)	2022
Stock Number	80324-4
MLS Number	13043662
Category	Differentials, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Detroit DA-RT-40.0-4 Rear Differential for a 2024 Freightliner Cascadia 126

$2,395 USD

DART400-4S LATE MODEL 3.23 LOCKER, 17K MILES, INSPECTED IN OUR GEAR SHOP, 90 DAY WARRANTY, Ratio: 3.23

Condition	Used
Rear End	3.23 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	Cascadia 126
Will Fit Year(s)	2024
Stock Number	61924-4
MLS Number	12948896
Category	Differentials, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Detroit Rear Differential for a 2014 Freightliner M2 106

$1,250 USD

RS17.5-4N 5.22 INSPECTED IN OUR GEAR SHOP, 90 DAY WARRANTY, Ratio: 5.22

Condition	Used
Rear End	5.22 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	M2 106
Will Fit Year(s)	2014
Stock Number	40524-3
MLS Number	12762617
Category	Differentials, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Detroit DA-RT-40.0-4 Rear Differential for a 2024 Freightliner Cascadia 126

$2,085 USD

DART400 REAR 2.85 LOW MILE, INSPECTED IN OUR GEAR SHOP, 90 DAY WARRANTY, Ratio: 2.85

Condition	Used
Rear End	2.85 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	Cascadia 126
Will Fit Year(s)	2024
Stock Number	22124-12
MLS Number	12685298
Category	Differentials, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Detroit DA-RT-40.0-4 Rear Differential for a 2021 Freightliner Cascadia 126

$1,895 USD

DART400 REAR 2.85 INSPECTED IN OUR GEAR SHOP, 90 DAY WARRANTY, Ratio: 2.85

Condition	Used
Rear End	2.85 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	Cascadia 126
Will Fit Year(s)	2021
Stock Number	20824-4
MLS Number	12649988
Category	Differentials, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Detroit DA-RT-40.0-4 Rear Differential for a 2017 Freightliner Cascadia 125

$1,895 USD

DART40 RR 2.85 INSPECTED IN OUR GEAR SHOP 90 DAY WARRANTY, Ratio: 2.85

Condition	Used
Rear End	2.85 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	Cascadia 125
Will Fit Year(s)	2017
Stock Number	70722-13
MLS Number	12137354
Category	Differentials, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Detroit DA-RT-40.0-4 Rear Differential for a 2020 Freightliner Cascadia 126

$2,085 USD

DART400 RR 2.85 INSPECTED IN OUR GEAR SHOP 90 DAY WARRANTY 380K MILES, Ratio: 2.85

Condition	Used
Rear End	2.85 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	Cascadia 126
Will Fit Year(s)	2020
Stock Number	30923-9
MLS Number	11946354
Category	Differentials, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Detroit DA-RT-40.0-4 Rear Differential for a 2019 Freightliner Cascadia 126

$1,895 USD

DART 400 2.85 RR INSPECTED IN OUR GEAR SHOP 90 DAY WARRANTY, Ratio: 2.85

Condition	Used
Rear End	2.85 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	Cascadia 126
Will Fit Year(s)	2019
Stock Number	11923-10
MLS Number	11841073
Category	Differentials, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts