Used Eaton RS404 Rear Differentials For Sale

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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.

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	1/11/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

2011 Eaton RS404 Rear Differential for a International Prostar

$325 USD

(USED) Eaton RS404 Ratio: 3.70 Side Gear Splines: 41 W/ Locker: NO Cast#: 03910 Ref# 509826 INTERNATIONAL P# 3549531C91

Condition	Used
Fits To Make(s)	International
Fits To Model(s)	Prostar
Part Number	509826
Stock Number	25909642
MLS Number	14083422
Category	Differentials, Rear
Last Updated	1/11/2026
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

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.

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.

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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2006 Eaton RS404 Rear Differential for a International 9200I

$500 USD

RS404 - 3.70 Ratio - Pullout - P/N 509826 - DIFF ONLY, HOUSING SOLD SEPARATELY.

Condition	Used
Rear End	3.70 ratio
Fits To Make(s)	INTERNATIONAL
Fits To Model(s)	9200I
Stock Number	4226-21
MLS Number	14077705
Category	Differentials, Rear
Last Updated	1/8/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

1995 Eaton RS404 Rear Differential for a Kenworth T600

$2,602 USD

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

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T600
Stock Number	25917516
MLS Number	14068793
Category	Differentials, Rear
Last Updated	1/2/2026
Location	Spencer, IA, 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	12/31/2025
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

2007 Eaton RS404 Rear Differential for a Freightliner Columbia 120

$325 USD

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

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	COLUMBIA 120
Stock Number	25841881
MLS Number	13752077
Category	Differentials, Rear
Last Updated	12/28/2025
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

1995 Eaton RS404 Rear Differential for a Freightliner FLD120

$595 USD

(USED) Eaton RS404 Ratio: 4.11 Side Gear Splines: 41 W/ Locker: NO Cast#: Could Not Verify

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	FLD120
Stock Number	25864072
MLS Number	13812763
Category	Differentials, Rear
Last Updated	12/28/2025
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

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Eaton RS404 Rear Differential

$795 USD

USED EATON RS404 REAR DIFFERENTIAL RATIO: 2.93

Condition	Used
Rear End	2.93 ratio
Stock Number	99740
MLS Number	14062579
Category	Differentials, Rear
Last Updated	12/27/2025
Location	Crandall, TX, US
Sold By	Tim Jordan's Truck Parts Inc.

(833) 359-___ SHOW
NUMBERCall Seller

Eaton RS404 Rear Differential

$795 USD

USED EATON RS404 REAR DIFFERENTIAL RATIO: 2.93

Condition	Used
Rear End	2.93 ratio
Stock Number	99738
MLS Number	14062577
Category	Differentials, Rear
Last Updated	12/27/2025
Location	Crandall, TX, US
Sold By	Tim Jordan's Truck Parts Inc.

2000 Eaton RS404 Rear Differential for a Peterbilt 377

$325 USD

(USED) Eaton RS404 Ratio: 3.70 Side Gear Splines: 41 W/ Locker: NO Cast#: 129351-5

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	377
Stock Number	25914684
MLS Number	14058427
Category	Differentials, Rear
Last Updated	12/24/2025
Location	Spencer, IA, 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	12/22/2025
Location	Kansas City, MO, 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	12/18/2025
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

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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	12/11/2025
Location	Fresno, CA, US
Sold By	Garabedian Equipment

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.

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.

(833) 359-___ SHOW
NUMBERCall Seller

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.

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.

2000 Eaton RS404 Rear Differential for a Freightliner CENTURY

$750 USD

GTO

Condition	Used
Rear End	3.90 ratio
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	CENTURY
Stock Number	27394
MLS Number	12862166
Category	Differentials, Rear
Last Updated	12/15/2025
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

2004 Eaton RS404 Rear Differential for a International 9400i

$750 USD

GTO

Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	INTERNATIONAL
Fits To Model(s)	9400i
Stock Number	27370
MLS Number	12801162
Category	Differentials, Rear
Last Updated	12/15/2025
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

2013 Eaton RS404 Rear Differential for a Freightliner Cascadia

$325 USD

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

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	CASCADIA
Stock Number	25869551
MLS Number	13851952
Category	Differentials, Rear
Last Updated	11/15/2025
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.