Eaton RS404 Rear Differentials For Sale

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Differentials, Rear

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Eaton

Model
RS404

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2002 Eaton RS404 Rear Differential for a Freightliner CENTURY

$750 USD

TAKE OUT 100 DAY WARRANTY

Condition	Used
Rear End	3.70 ratio
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	CENTURY
Stock Number	11496
MLS Number	10532748
Category	Differentials, Rear
Last Updated	12/15/2025
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

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2001 Eaton RS404 Rear Differential for a Freightliner FLD120

$900 USD

100 DAY WARRANTY

Condition	Used
Rear End	2.93 ratio
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	FLD120
Stock Number	11442
MLS Number	10532743
Category	Differentials, Rear
Last Updated	12/15/2025
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

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2001 Eaton RS404 Rear Differential for a Kenworth T800

$850 USD

GTO 30DAY WARRANTY

Condition	Used
Rear End	3.90 ratio
Fits To Make(s)	KENWORTH
Fits To Model(s)	T800
Stock Number	9096
MLS Number	10532610
Category	Differentials, Rear
Last Updated	12/15/2025
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

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1999 Eaton RS404 Rear Differential for a Freightliner FLD120

$900 USD

GTO 100 DAY WARRANTY

Condition	Used
Rear End	2.93 ratio
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	FLD120
Stock Number	8186
MLS Number	10532558
Category	Differentials, Rear
Last Updated	12/15/2025
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

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1995 Eaton RS404 Rear Differential for a Freightliner FLD120

$850 USD

GTO 100 DAY WARRANTY

Condition	Used
Rear End	3.90 ratio
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	FLD120
Stock Number	8155
MLS Number	10532557
Category	Differentials, Rear
Last Updated	12/15/2025
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

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1999 Eaton RS404 Rear Differential for a Kenworth T2000

$750 USD

GTO 100 DAY WARRANTY

Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	KENWORTH
Fits To Model(s)	T2000
Stock Number	8089
MLS Number	10532551
Category	Differentials, Rear
Last Updated	12/15/2025
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

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Eaton RS404 Rear Differential

$1,250 USD

REBUILT 1 YEAR WARRANTY

Condition	Used
Rear End	3.36 ratio
Stock Number	23311
MLS Number	10534514
Category	Differentials, Rear
Last Updated	12/15/2025
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

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Eaton RS404 Rear Differential

$1,250 USD

REBUILT 12 MONTH WARRANTY

Condition	Used
Rear End	3.55 ratio
Stock Number	21513
MLS Number	10534144
Category	Differentials, Rear
Last Updated	12/15/2025
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

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Eaton RS404 Rear Differential

$1,250 USD

REBUILT 12 MONTH WARRANTY

Condition	Used
Rear End	3.70 ratio
Stock Number	20924
MLS Number	10534023
Category	Differentials, Rear
Last Updated	12/15/2025
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

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Eaton RS404 Rear Differential

$1,250 USD

1 YEAR WARRANTY

Condition	Used
Rear End	3.70 ratio
Stock Number	19779
MLS Number	10533829
Category	Differentials, Rear
Last Updated	12/15/2025
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

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Eaton RS404 Rear Differential, RATIO 3.70

$650 USD

USED EATON RS404 REAR DIFFERENTIAL ASSEMBLY, RATIO 3.70, FOR MORE INFORMATION PLEASE CALL 844-EZ-ENGIN.

Condition	Used
Part Number	RS404, RATIO 3.70
Stock Number	S4100
MLS Number	10149799
Category	Differentials, Rear
Last Updated	4/7/2023
Location	Palmyra, PA, US
Sold By	Boots and Hank's Truck Parts, Inc.

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Eaton RS404 Rear Differential Ratio 3.25

$650 USD

USED EATON RS404 REAR DIFFERENTIAL ASSEMBLY, RATIO 3.25, FOR MORE INFORMATION PLEASE CALL 844-EZ-ENGIN.

Condition	Used
Part Number	RS404, Ratio 3.25
Stock Number	S4098
MLS Number	10149792
Category	Differentials, Rear
Last Updated	4/7/2023
Location	Palmyra, PA, US
Sold By	Boots and Hank's Truck Parts, Inc.

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Eaton RS404 Rear Differential Ratio 2.85

$650 USD

USED EATON RS404 REAR DIFFERENTIAL ASSEMBLY, RATIO 2.85, 30 DAY WARRANTY, FOR MORE INFORMATION PLEASE CALL 844-EZ-ENGINE.

Condition	Used
Part Number	RS404
Stock Number	S091
MLS Number	10134416
Category	Differentials, Rear
Last Updated	4/7/2023
Location	Palmyra, PA, US
Sold By	Boots and Hank's Truck Parts, Inc.

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Eaton RS404 Rear Differential, Ratio 3.90

$650 USD

USED EATON RS404 REAR DIFFERENTIAL, RATIO 3.90.

Condition	Used
Part Number	RS404
Stock Number	S4048
MLS Number	10107808
Category	Differentials, Rear
Last Updated	4/7/2023
Location	Palmyra, PA, US
Sold By	Boots and Hank's Truck Parts, Inc.

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Eaton RS404 Rear Differential

$650 USD

USED EATON RS404 REAR DIFFERENTIAL RATIO 3.55, FOR MORE INFORMATION PLEASE CALL 844-EZ-ENGIN.

Condition	Used
Part Number	RS404 RATIO 3.55
Stock Number	S4058
MLS Number	10092934
Category	Differentials, Rear
Last Updated	4/7/2023
Location	Palmyra, PA, US
Sold By	Boots and Hank's Truck Parts, Inc.

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Eaton RS404 Rear Differential, 3.90 Ratio

$650 USD

USED EATON RS404 REAR DIFFERENTIAL, RATIO 3.90, FOR MORE INFORMATION PLEASE CALL 844-EZ-ENGIN

Condition	Used
Part Number	RS404
Stock Number	S4057
MLS Number	10092334
Category	Differentials, Rear
Last Updated	2/15/2020
Location	Palmyra, PA, US
Sold By	Boots and Hank's Truck Parts, Inc.

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2002 Eaton RSP40 Rear Differential for a GMC C7500

Eaton RS404 Rear Differential

2011 Eaton RS404 Rear Differential for a Freightliner Cascadia

$325 USD

(USED) Eaton RS404 Ratio: 3.70 Side Gear Splines: 41 W/ Locker: NO Cast#: NA

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	Cascadia
Stock Number	25908968
MLS Number	14024406
Category	Differentials, Rear
Last Updated	12/10/2025
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

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2000 Eaton RS404 Rear Differential for a Volvo VNM

$375 USD

(USED) Eaton RS404 Ratio: 3.90 Side Gear Splines: 41 W/ Locker: NO Cast#: 127603 Ref# 509827

Condition	Used
Fits To Make(s)	Volvo
Fits To Model(s)	VNM
Part Number	509827
Stock Number	25900009
MLS Number	14021008
Category	Differentials, Rear
Last Updated	12/7/2025
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

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2013 Eaton RS404 Rear Differential for a Freightliner Cascadia

$375 USD

(USED) Eaton RS404 Ratio: 3.36 Side Gear Splines: 41 W/ Locker: NO Cast#: NA

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	Cascadia
Stock Number	25874774
MLS Number	14014856
Category	Differentials, Rear
Last Updated	12/4/2025
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

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1998 Eaton RS404 Rear Differential for a Kenworth T2000

$485 USD

(USED) Eaton RS404 Ratio: 3.55 Side Gear Splines: 41 W/ Locker: NO Cast#: 127603

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T2000
Stock Number	25823877
MLS Number	13860857
Category	Differentials, Rear
Last Updated	11/21/2025
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

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Eaton RS404 Rear Differential

$795 USD

USED RS404 EATON REAR DIFFERENTIAL RATIO: 3.55

Condition	Used
Rear End	3.55 ratio
Stock Number	89406
MLS Number	12834580
Category	Differentials, Rear
Last Updated	11/20/2025
Location	Crandall, TX, US
Sold By	Tim Jordan's Truck Parts Inc.

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1998 Eaton RS404 Rear Differential for a Volvo VNL

$375 USD

(USED) Eaton RS404 Ratio: 3.90 Side Gear Splines: 41 W/ Locker: NO Cast#: N/A Ref# N/A

Condition	Used
Fits To Make(s)	Volvo
Fits To Model(s)	VNL
Part Number	N/A
Stock Number	25895572
MLS Number	13992139
Category	Differentials, Rear
Last Updated	11/20/2025
Location	Sioux Falls, SD, US
Sold By	Vander Haag's 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	28252
MLS Number	13975207
Category	Differentials, Rear
Last Updated	12/15/2025
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.