Used Eaton RS404 Rear Differentials For Sale

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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.

(877) 254-___ SHOW
NUMBERCall Seller

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.

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.

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.

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.

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.

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.

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.

2010 Eaton RS404 Rear Differential for a International Prostar

2007 Eaton RS404 Rear Differential for a International 9400

Newly Listed

$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)	9400
Stock Number	25929419
MLS Number	14239672
Category	Differentials, Rear
Last Updated	3/12/2026
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

2005 Eaton RS404 Rear Differential for a Freightliner Columbia 120

Newly Listed

$325 USD

(USED) Eaton RS404 Ratio: 3.70 Side Gear Splines: 41 W/ Locker: NO Cast#: 609826

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	Columbia 120
Stock Number	25959481
MLS Number	14235619
Category	Differentials, Rear
Last Updated	3/11/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

1997 Eaton RS404 Rear Differential for a Peterbilt 385

1998 Eaton RS404 Rear Differential for a Volvo VNL

$595 USD

(USED) Eaton RS404 Ratio: 4.11 Side Gear Splines: 41 W/ Locker: NO Cast#: 127603

Condition	Used
Fits To Make(s)	Volvo
Fits To Model(s)	VNL
Stock Number	25927993
MLS Number	14109659
Category	Differentials, Rear
Last Updated	3/5/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

(833) 371-___ SHOW
NUMBERCall Seller

Eaton RS404 Rear Differential

Contact for price

RS404 Ratio:3.55, Ratio: 3.55

Condition	Used
Rear End	3.55 ratio
Stock Number	ATC2594
MLS Number	14222129
Category	Differentials, Rear
Last Updated	3/4/2026
Location	Alma, AR, US
Sold By	Arkansas Truck Center

(855) 794-___ SHOW
NUMBERCall Seller

Eaton RS404 Rear Differential

$500 USD

RS404 - 5.29 Ratio - Pullout - Grade A - Unit In Good Condition.

Condition	Used
Rear End	5.29 ratio
Stock Number	AS121826-2
MLS Number	13887104
Category	Differentials, Rear
Last Updated	2/26/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

2013 Eaton RS404 Rear Differential for a Freightliner Cascadia

$455 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	2/14/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

2007 Eaton RS404 Rear Differential for a International 8600

$325 USD

(USED) Eaton RS404 Ratio: 3.70 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812

Condition	Used
Fits To Make(s)	International
Fits To Model(s)	8600
Stock Number	25902854
MLS Number	14054954
Category	Differentials, Rear
Last Updated	2/14/2026
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

2016 Eaton RS404 Rear Differential for a International Lonestar

$455 USD

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

Condition	Used
Fits To Make(s)	International
Fits To Model(s)	Lonestar
Stock Number	25937935
MLS Number	14139392
Category	Differentials, Rear
Last Updated	2/12/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

2009 Eaton RS404 Rear Differential for a International Prostar

$585 USD

(USED) Eaton RS404 Ratio: 3.55 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812

Condition	Used
Fits To Make(s)	International
Fits To Model(s)	PROSTAR
Stock Number	25860781
MLS Number	13808733
Category	Differentials, Rear
Last Updated	2/8/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

1993 Eaton RS404 Rear Differential for a Peterbilt 379

$375 USD

(USED) Eaton RS404 Ratio: 3.08 Side Gear Splines: 41 W/ Locker: NO Cast#: 662459

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	379
Stock Number	25879338
MLS Number	13896405
Category	Differentials, Rear
Last Updated	2/8/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

2002 Eaton RSP40 Rear Differential for a GMC C7500

$595 USD

(USED) Eaton RS404 Ratio: 4.11 Side Gear Splines: 41 W/ Locker: NO Cast#: 129351

Condition	Used
Fits To Make(s)	GMC
Fits To Model(s)	C7500
Stock Number	25902112
MLS Number	14014803
Category	Differentials, Rear
Last Updated	2/8/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

1999 Eaton RS404 Rear Differential for a Kenworth T2000

$585 USD

(USED) Eaton RS404 Ratio: 3.55 Side Gear Splines: 41 W/ Locker: NO Cast#: 15102

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T2000
Stock Number	25925472
MLS Number	14131534
Category	Differentials, Rear
Last Updated	2/8/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

2000 Eaton RS404 Rear Differential for a Sterling A9513

$425 USD

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

Condition	Used
Fits To Make(s)	Sterling
Fits To Model(s)	A9513
Stock Number	25935068
MLS Number	14130475
Category	Differentials, Rear
Last Updated	2/12/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.