Detroit RT40-NFD Axles & Differentials For Sale

1 - 25 of 183 listings

2025 Detroit RT40-NFD Rear Axle Housing

Detroit RT40-NFD Front Differential for a 2021 Freightliner Cascadia 126

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(Used) 2021 Freightliner Cascadia 126, FRONT DIFFERENTIAL GEARS ONLY- Part Number: C11-00051-620, Serial Number: 771194A0150921, 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)	2021
Part Number	C11-00051-620
Stock Number	P-501019
MLS Number	14270536
Category	Differentials, Front
Last Updated	8/18/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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Detroit RT40-NFD Differential Core

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(Core) 2020 Freightliner Cascadia 125, FRONT DIFFERENTIAL GEARS ONLY- Part Number: C11-00051-355, Make: Detroit, Model: RT40-NFD, Ratio: 3.23, Capacity: 20,000 Lbs, Reference images...

Condition	Used
Rear End	3.23 ratio
Stock Number	P-511175
MLS Number	14543233
Category	Differential Cores
Last Updated	8/19/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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Detroit RT40-NFD Rear Axle Housing for a 2026 Freightliner Cascadia 126

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(Used) 2026 Freightliner Cascadia 126, REAR DIFFERENTIAL HOUSING ONLY- Part Number: C11-00090-114, Serial Number: 771195A0318671, Make: Detroit, Model: RT40-NFD, Ratio: 2.28, Capacity:...

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	Cascadia 126
Will Fit Year(s)	2026
Part Number	C11-00090-114
Stock Number	P-507356
MLS Number	14455930
Category	Axle Housings, Rear
Last Updated	8/8/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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Detroit RT40-NFD Rear Axle Assembly for a 2021 Freightliner Cascadia 126

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(Used) 2021 Freightliner Cascadia 126, COMPLETE REAR REAR TANDEM- Part Number: C11-00051-621, Serial Number: 771195A0138253, Make: Detroit, Model: RT40-NFD, Ratio: 2.16, Capacity: 20,000 Lbs...

Condition	Used
Rear End	2.16 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	Cascadia 126
Will Fit Year(s)	2021
Part Number	C11-00051-621
Stock Number	P-108010
MLS Number	13726629
Category	Axle Assemblies, Rear
Last Updated	8/17/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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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: C11-00051-620, Serial Number: 771195B0105916, 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)	2020
Part Number	C11-00051-620
Stock Number	P-508710
MLS Number	14481186
Category	Differentials, Rear
Last Updated	8/3/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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Detroit RT40-NFD Rear Differential for a 2023 Freightliner Cascadia 126

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(Used) 2023 Freightliner Cascadia 126, REAR DIFFERENTIAL GEARS ONLY- Part Number: C11-00051-620, Serial Number: 771195B0355463, 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)	2023
Part Number	C11-00051-620
Stock Number	P-510356
MLS Number	14518690
Category	Differentials, Rear
Last Updated	8/15/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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

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(Used) 2023 Freightliner Cascadia 126, REAR DIFFERENTIAL HOUSING ONLY- Part Number: C11-00051-620, Serial Number: 771195B0355463, Make: Detroit, Model: RT40-NFD, Ratio: 2.85, Capacity:...

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	Cascadia 126
Will Fit Year(s)	2023
Part Number	C11-00051-620
Stock Number	P-510353
MLS Number	14518687
Category	Axle Housings, Rear
Last Updated	8/1/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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Detroit RT40-NFD Front Differential for a 2023 Freightliner Cascadia 126

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(Used) 2023 Freightliner Cascadia 126, FRONT DIFFERENTIAL GEARS ONLY- Part Number: C11-00051-620, Serial Number: 771194B0355462, 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)	2023
Part Number	C11-00051-620
Stock Number	P-510348
MLS Number	14518682
Category	Differentials, Front
Last Updated	8/1/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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Detroit RT40-NFD Rear Axle Housing for a 2020 Freightliner Cascadia 126

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(Used) 2020 Freightliner Cascadia 126, FRONT DIFFERENTIAL HOUSING ONLY- Part Number: C11-00051-261, Serial Number: 771194A0067318, Make: Detroit, Model: RT40-NFD, Ratio: 2.85, Capacity:...

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	Cascadia 126
Will Fit Year(s)	2020
Part Number	C11-00051-261
Stock Number	P-107491
MLS Number	13702933
Category	Axle Housings, Rear
Last Updated	7/31/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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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-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 RT40-NFD Rear Axle Housing 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
Fits To Make(s)	Freightliner
Fits To Model(s)	Cascadia 126
Will Fit Year(s)	2019
Part Number	C11-00051-261
Stock Number	P-509707
MLS Number	14504429
Category	Axle Housings, Rear
Last Updated	8/16/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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Detroit RT40-NFD Rear Axle Assembly for a 2019 Freightliner Cascadia 126

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(Used) 2019 Freightliner Cascadia 126, COMPLETE REAR REAR TANDEM- Part Number: C11-00051-261, Serial Number: 771195B0012080, 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)	2019
Part Number	C11-00051-261
Stock Number	P-509705
MLS Number	14504427
Category	Axle Assemblies, Rear
Last Updated	7/24/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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

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(Used) 2019 Freightliner Cascadia 126, FRONT DIFFERENTIAL GEARS ONLY- Part Number: C11-00051-261, Serial Number: 771194B0013435, 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-509698
MLS Number	14504421
Category	Differentials, Front
Last Updated	7/24/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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Detroit RT40-NFD Front Differential for a 2021 Freightliner Cascadia 126

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(Used) 2021 Freightliner Cascadia 126, COMPLETE FRONT REAR TANDEM- Part Number: C11-00051-620, Serial Number: 771194B0179373, 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)	2021
Part Number	C11-00051-620
Stock Number	P-500904
MLS Number	14264478
Category	Differentials, Front
Last Updated	7/24/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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2007 Detroit RT40-NFD Rear Axle Assembly

$1,850.24 USD

RT40-4N, FRTLNR AIRLINER, 15+1 FLANGE, AIR/ABS

Condition	Used
Rear End	3.42 ratio
Fits To Make(s)	DETROIT
Fits To Model(s)	RT40-NFD
Capacity	20,000
Stock Number	2649077
MLS Number	14377695
Category	Axle Assemblies, Rear
Last Updated	7/21/2026
Location	Toledo, OH, US
Sold By	LKQ Heavy Truck

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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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2018 Detroit RT40-NFD Rear Axle Housing

$1,000 USD

REAR REAR AXLE HOUSING

Condition	Used
Fits To Make(s)	DETROIT
Fits To Model(s)	RT40-NFD
Stock Number	2670587
MLS Number	14470579
Category	Axle Housings, Rear
Last Updated	7/16/2026
Location	Henderson, CO, US
Sold By	LKQ Heavy Truck

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Detroit RT40-NFD Rear Axle Housing for a 2020 Freightliner Cascadia 126

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(Used) 2020 Freightliner Cascadia 126, REAR DIFFERENTIAL HOUSING ONLY- Part Number: C11-00051-620, Serial Number: 771195B0105916, Make: Detroit, Model: RT40-NFD, Ratio: 2.85, Capacity:...

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	Cascadia 126
Will Fit Year(s)	2020
Part Number	C11-00051-620
Stock Number	P-508708
MLS Number	14481184
Category	Axle Housings, Rear
Last Updated	8/21/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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Detroit RT40-NFD Rear Axle Assembly for a 2020 Freightliner Cascadia 126

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(Used) 2020 Freightliner Cascadia 126, COMPLETE REAR REAR TANDEM- Part Number: C11-00051-620, Serial Number: 771195B0105916, 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)	2020
Part Number	C11-00051-620
Stock Number	P-508705
MLS Number	14481181
Category	Axle Assemblies, Rear
Last Updated	7/14/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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

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(Used) 2020 Freightliner Cascadia 126, FRONT DIFFERENTIAL GEARS ONLY, Part Number: C11-00051-620, Serial Number: 771194B0105915, 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)	2020
Part Number	C11-00051-620
Stock Number	P-508702
MLS Number	14481178
Category	Differentials, Front
Last Updated	7/14/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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Detroit RT40-NFD Front Axle Housing for a 2020 Freightliner Cascadia 126

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(Used) 2020 Freightliner Cascadia 126, FRONT DIFFERENTIAL HOUSING ONLY- Part Number: C11-00051-620, Serial Number: 771194B0105915, Make: Detroit, Model: RT40-NFD, Ratio: 2.85, Capacity:...

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	Cascadia 126
Will Fit Year(s)	2020
Part Number	C11-00051-620
Stock Number	P-508701
MLS Number	14481177
Category	Axle Housings, Front
Last Updated	7/14/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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

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(Used) 2020 Freightliner Cascadia 126, COMPLETE FRONT REAR TANDEM- Part Number: C11-00051-620, Serial Number: 771194B0105915, 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)	2020
Part Number	C11-00051-620
Stock Number	P-508700
MLS Number	14481176
Category	Differentials, Front
Last Updated	7/27/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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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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Condition	Used
Suspension	AirLiner
Fits To Make(s)	DETROIT
Fits To Model(s)	RT40-NFD
Stock Number	2502646
MLS Number	13482180
Category	Axle Housings, Rear
Last Updated	8/23/2026
Location	Easton, MD, US
Sold By	LKQ Heavy Truck

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