Used Eaton RS404 Axles &amp; Differentials For Sale

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2003 Eaton RS404 Rear Differential for a International 4400

Recently Updated

$425 USD

(USED) Eaton RS404 Ratio: 3.90 Side Gear Splines: 41 W/ Locker: NO Cast#: 129543

Condition	Used
Fits To Make(s)	International
Fits To Model(s)	4400
Stock Number	25591901
MLS Number	12632162
Category	Differentials, Rear
Last Updated	9/5/2026
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

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2008 Eaton RS404 Rear Differential for a International Prostar

Recently Updated

$455 USD

(USED) Eaton RS404 Ratio: 3.36 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812

Condition	Used
Fits To Make(s)	International
Fits To Model(s)	PROSTAR
Stock Number	25651667
MLS Number	12881906
Category	Differentials, Rear
Last Updated	9/5/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

1999 Eaton RS404 Rear Differential for a Freightliner FLD120

Recently Updated

$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	9/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

2001 Eaton RS404 Rear Differential for a Freightliner FLD120

Recently Updated

$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	9/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

2003 Eaton RS404 Rear Differential for a Freightliner COLUMBIA

Recently Updated

$900 USD

GTO 100 DAY WARRANTY

Condition	Used
Rear End	2.93 ratio
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	COLUMBIA
Stock Number	13163
MLS Number	10532894
Category	Differentials, Rear
Last Updated	9/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

2002 Eaton RS404 Rear Differential for a Freightliner COLUMBIA

Recently Updated

$900 USD

GTO 100 DAY WARRANTY

Condition	Used
Rear End	2.93 ratio
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	COLUMBIA
Stock Number	13764
MLS Number	10532963
Category	Differentials, Rear
Last Updated	9/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

1997 Eaton RS404 Rear Differential for a Volvo WIA

Recently Updated

$850 USD

GTO 100 DAY WARRANTY

Condition	Used
Rear End	3.90 ratio
Fits To Make(s)	VOLVO
Fits To Model(s)	WIA
Stock Number	13573
MLS Number	10532936
Category	Differentials, Rear
Last Updated	9/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

2001 Eaton RS404 Rear Differential for a Kenworth T800

Recently Updated

$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	9/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

1999 Eaton RS404 Rear Differential for a International 9300

Recently Updated

$850 USD

TAKE OUT 100 DAY WARRANTY

Condition	Used
Rear End	3.90 ratio
Fits To Make(s)	INTERNATIONAL
Fits To Model(s)	9300
Stock Number	11676
MLS Number	10532762
Category	Differentials, Rear
Last Updated	9/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

1995 Eaton RS404 Rear Differential for a Freightliner FLD120

Recently Updated

$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	9/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

1996 Eaton RS404 Rear Differential for a Kenworth T800

Recently Updated

$850 USD

GTO 100 DAY WARRANTY

Condition	Used
Rear End	3.90 ratio
Fits To Make(s)	KENWORTH
Fits To Model(s)	T800
Stock Number	12721
MLS Number	10532848
Category	Differentials, Rear
Last Updated	9/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

2000 Eaton RS404 Rear Differential for a Freightliner CENTURY

Recently Updated

$750 USD

NEEDS TO BE BUILT

Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	CENTURY
Stock Number	11826
MLS Number	10532778
Category	Differentials, Rear
Last Updated	9/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

1996 Eaton RS404 Rear Differential for a Freightliner FLD120

Recently Updated

$750 USD

GTO 100 DAY WARRANTY

Condition	Used
Rear End	3.70 ratio
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	FLD120
Stock Number	12237
MLS Number	10532804
Category	Differentials, Rear
Last Updated	9/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

2005 Eaton RS404 Rear Differential for a Kenworth T 600

Recently Updated

$750 USD

GTO 100 DAY WARRANTY

Condition	Used
Fits To Make(s)	KENWORTH
Fits To Model(s)	T 600
Stock Number	12531
MLS Number	10532833
Category	Differentials, Rear
Last Updated	9/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

2002 Eaton RS404 Rear Differential for a Freightliner CENTURY

Recently Updated

$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	9/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

2002 Eaton RS404 Rear Differential for a Freightliner CENTURY

Recently Updated

$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	11647
MLS Number	10532758
Category	Differentials, Rear
Last Updated	9/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

1998 Eaton RS404 Rear Differential for a Volvo VN

Recently Updated

$750 USD

TAKE OUT

Condition	Used
Rear End	3.70 ratio
Fits To Make(s)	VOLVO
Fits To Model(s)	VN
Stock Number	13688
MLS Number	10532950
Category	Differentials, Rear
Last Updated	9/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

2001 Eaton RS404 Rear Differential for a Peterbilt 379

Recently Updated

$750 USD

GOOD REAR

Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	PETERBILT
Fits To Model(s)	379
Stock Number	13730
MLS Number	10532959
Category	Differentials, Rear
Last Updated	9/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

2000 Eaton RS404 Rear Differential for a Peterbilt 379

Recently Updated

$750 USD

BURNT NEEDS TO BE BUILT

Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	PETERBILT
Fits To Model(s)	379
Stock Number	13880
MLS Number	10532979
Category	Differentials, Rear
Last Updated	9/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

2001 Eaton RS404 Rear Differential for a International 9400

Recently Updated

$750 USD

100 DAY WARRANTY

Condition	Used
Rear End	3.70 ratio
Fits To Make(s)	INTERNATIONAL
Fits To Model(s)	9400
Stock Number	13949
MLS Number	10532987
Category	Differentials, Rear
Last Updated	9/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

2002 Eaton RS404 Rear Differential for a International 9200

Recently Updated

$750 USD

GTO 100 DAY WARRANTY

Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	INTERNATIONAL
Fits To Model(s)	9200
Stock Number	14120
MLS Number	10533020
Category	Differentials, Rear
Last Updated	9/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

1998 Eaton RS404 Rear Differential for a Volvo VN

Recently Updated

$750 USD

NEEDS TO BE REBUILT

Quantity	3
Condition	Used
Rear End	3.70 ratio
Fits To Make(s)	VOLVO
Fits To Model(s)	VN
Stock Number	14348
MLS Number	10533059
Category	Differentials, Rear
Last Updated	9/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

2007 Eaton RS404 Rear Differential for a Freightliner CENTURY

Recently Updated

$750 USD

GTO

Condition	Used
Rear End	3.36 ratio
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	CENTURY
Stock Number	22036
MLS Number	10534234
Category	Differentials, Rear
Last Updated	9/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.