American Truck Parts, Inc. Rear Differentials For Sale

American Truck Parts, Inc.
250 Robert Harper Rd.
Douglas, GA 31533
United States
(877) 254-5970

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176 - 200 of 904 listings

2012 Rockwell MR20-14X Rear Differential for a Freightliner Cascadia

$950 USD

14 X REAR REAR TAKE OUT 3.55 RATIO

Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	Cascadia
Stock Number	28335
MLS Number	14142130
Category	Differentials, Rear
Last Updated	3/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

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Eaton RS404 Rear Differential

$1,250 USD

REMAN 1 YEAR WARR.

Condition	Remanufactured
Rear End	3.55 ratio
Stock Number	28323
MLS Number	14117863
Category	Differentials, Rear
Last Updated	3/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

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2007 Rockwell RR20145 Rear Differential for a Freightliner COLUMBIA

$850 USD

20-145 ROCKWELL 3.58 RATIO

Condition	Used
Rear End	3.58 ratio
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	COLUMBIA
Stock Number	28317
MLS Number	14095947
Category	Differentials, Rear
Last Updated	3/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

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2022 Rockwell MR20-14X Rear Differential for a Freightliner Cascadia

$1,100 USD

MT 40-14X REAR REAR 2.28 RATIO

Condition	Used
Rear End	2.28 ratio
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	Cascadia
Stock Number	28312
MLS Number	14081546
Category	Differentials, Rear
Last Updated	3/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

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2020 Alliance RT40-NFD Rear Differential for a Freightliner Cascadia

$1,250 USD

DART 40-45 HHNFD 2.41 RATIO

Condition	Used
Rear End	2.41 ratio
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	Cascadia
Stock Number	28300
MLS Number	14069282
Category	Differentials, Rear
Last Updated	3/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

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2006 Rockwell RR20145 Rear Differential for a Freightliner CENTURY

$850 USD

GTO

Condition	Used
Rear End	2.64 ratio
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	CENTURY
Stock Number	27150
MLS Number	12466953
Category	Differentials, Rear
Last Updated	3/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

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2015 Rockwell MR20-14X Rear Differential for a International PROSTAR

$950 USD

GTO

Condition	Used
Rear End	2.47 ratio
Fits To Make(s)	INTERNATIONAL
Fits To Model(s)	PROSTAR
Stock Number	26014
MLS Number	11526889
Category	Differentials, Rear
Last Updated	3/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

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Rockwell RR20145 Rear Differential

$1,200 USD

REMAN 1 YEAR WARR.

Condition	Remanufactured
Rear End	3.58 ratio
Stock Number	28359
MLS Number	14222138
Category	Differentials, Rear
Last Updated	3/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

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2007 Eaton RST40 Rear Differential for a International 9400i

$850 USD

RST 40 3.25 RATIO

Condition	Used
Rear End	3.25 ratio
Fits To Make(s)	INTERNATIONAL
Fits To Model(s)	9400i
Stock Number	28357
MLS Number	14219592
Category	Differentials, Rear
Last Updated	3/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

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Eaton RS404 Rear Differential

$1,250 USD

REMAN 1 YEAR WARR.

Condition	Remanufactured
Rear End	3.90 ratio
Stock Number	28354
MLS Number	14219589
Category	Differentials, Rear
Last Updated	3/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

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2007 Rockwell RR20145 Rear Differential for a International 9400i

$850 USD

REAR ROCKWELL 20-145 - 3.73 RATIO

Condition	Used
Rear End	3.73 ratio
Fits To Make(s)	INTERNATIONAL
Fits To Model(s)	9400i
Stock Number	21426
MLS Number	10534118
Category	Differentials, Rear
Last Updated	2/13/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

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Eaton RS402 Rear Differential

$1,250 USD

1 YEAR WARRANTY

Condition	Remanufactured
Rear End	3.55 ratio
Stock Number	27687
MLS Number	13206135
Category	Differentials, Rear
Last Updated	1/14/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

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2007 Eaton RS404 Rear Differential for a Freightliner COLUMBIA

$750 USD

RS 404 3.55 RATIO

Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	COLUMBIA
Stock Number	28295
MLS Number	14067673
Category	Differentials, Rear
Last Updated	1/10/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

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Rockwell MR20-145 Rear Differential

$1,250 USD

REMAN 1 YEAR WARR.

Condition	Remanufactured
Rear End	3.90 ratio
Stock Number	28293
MLS Number	14055557
Category	Differentials, Rear
Last Updated	1/10/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

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2001 Eaton RS404 Rear Differential for a Freightliner FLD132064T CLASSIC

$750 USD

USED REAR REAR RS 404 3.70 RATIO

Condition	Used
Rear End	3.70 ratio
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	FLD132064T CLASSIC
Stock Number	28292
MLS Number	14055556
Category	Differentials, Rear
Last Updated	1/10/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

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2001 Eaton RS404 Rear Differential for a Kenworth T2000

$750 USD

GTO

Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	KENWORTH
Fits To Model(s)	T2000
Stock Number	27965
MLS Number	13509355
Category	Differentials, Rear
Last Updated	1/10/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

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Eaton RS404 Rear Differential

$1,250 USD

REMAN 1 YEAR WARR.

Condition	Remanufactured
Rear End	3.90 ratio
Stock Number	28303
MLS Number	14071479
Category	Differentials, Rear
Last Updated	1/10/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

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Eaton RS402 Rear Differential

$1,250 USD

1 YEAR WARRANTY

Condition	Remanufactured
Rear End	3.70 ratio
Stock Number	27686
MLS Number	13206134
Category	Differentials, Rear
Last Updated	12/25/2025
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

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Rockwell RR20145 Rear Differential

$1,200 USD

REBUILT ONE YEAR WARRANTY!!!!!!

Condition	Remanufactured
Rear End	2.79 ratio
Stock Number	27353
MLS Number	12767731
Category	Differentials, Rear
Last Updated	12/25/2025
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

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Rockwell RR20145 Rear Differential

$1,200 USD

REBUILT ONE YEAR WARRANTY!!!

Condition	Remanufactured
Rear End	3.90 ratio
Stock Number	27351
MLS Number	12767729
Category	Differentials, Rear
Last Updated	12/25/2025
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

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Eaton RSP40 Rear Differential

$1,250 USD

REBUILT 1 YEAR WARRANTY!!!

Condition	Used
Rear End	3.70 ratio
Stock Number	27247
MLS Number	12622281
Category	Differentials, Rear
Last Updated	12/25/2025
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

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2023 Rockwell RRL20-145 Rear Differential for a Mack MD642

$1,650 USD

20-145 LOCKER REAR 5.57 RATIO

Condition	Used
Rear End	5.57 ratio
Fits To Make(s)	MACK
Fits To Model(s)	MD642
Stock Number	28282
MLS Number	14027800
Category	Differentials, Rear
Last Updated	12/19/2025
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

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Eaton RS404 LOCKER Rear Differential

$1,400 USD

REMAN 1 YEAR WARR.

Condition	Remanufactured
Rear End	3.36 ratio
Stock Number	28275
MLS Number	14019997
Category	Differentials, Rear
Last Updated	12/19/2025
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

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2012 Eaton RD404 Rear Differential for a Freightliner Cascadia

$1,450 USD

RS 404 USED TAKEOUT 3.70 RATIO

Condition	Used
Rear End	3.70 ratio
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	Cascadia
Stock Number	28261
MLS Number	13983365
Category	Differentials, Rear
Last Updated	12/19/2025
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

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2016 Rockwell RR 40-145 Rear Differential for a Western Star 4900EX

$750 USD

GOOD TAKE PUT REAR 3.42 RATIO

Condition	Used
Rear End	3.42 ratio
Fits To Make(s)	WESTERN STAR
Fits To Model(s)	4900EX
Stock Number	28198
MLS Number	13824195
Category	Differentials, Rear
Last Updated	12/19/2025
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.