Used Eaton RS404 Axles & Differentials For Sale

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RS404

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226 - 250 of 824 listings

2000 Eaton RS404 Rear Differential for a Western Star 4900EX

$425 USD

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

Condition	Used
Fits To Make(s)	Western Star Trucks
Fits To Model(s)	4900EX
Stock Number	25657582
MLS Number	12960049
Category	Differentials, Rear
Last Updated	1/29/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

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1998 Eaton RS404 Rear Axle Housing for a Crane Carrier C LOW ENTRY

$1,500 USD

OEM# 307842

Condition	Used
Fits To Make(s)	CRANE CARRIER C
Fits To Model(s)	LOW ENTRY
Stock Number	8844
MLS Number	10893621
Category	Axle Housings, Rear
Last Updated	1/22/2026
Location	Enfield, CT, US
Sold By	Camerota Truck Parts

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1999 Eaton RS404 Rear Differential for a Kenworth T600

$325 USD

(USED) Eaton RS404 Ratio: 3.70 Side Gear Splines: 41 W/ Locker: NO Cast#: 127603 Ref# N/A

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T600
Part Number	N/A
Stock Number	25773063
MLS Number	13511335
Category	Differentials, Rear
Last Updated	1/21/2026
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

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2012 Eaton RS404 Rear Axle Housing for a International Prostar

$1,800 USD

Condition	Used
Fits To Make(s)	INTERNATIONAL
Fits To Model(s)	Prostar
Stock Number	17526
MLS Number	13908506
Category	Axle Housings, Rear
Last Updated	1/15/2026
Location	Enfield, CT, US
Sold By	Camerota Truck Parts

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2005 Eaton RS404 Rear Axle Housing for a International 4400

$1,500 USD

OEM# 320584 / 320585 / 10046959

Condition	Used
Fits To Make(s)	INTERNATIONAL
Fits To Model(s)	4400
Stock Number	14926
MLS Number	11681924
Category	Axle Housings, Rear
Last Updated	1/13/2026
Location	Enfield, CT, US
Sold By	Camerota Truck Parts

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2000 Eaton RS404 Rear Axle Housing for a Sterling

$1,500 USD

OEM 320108

Condition	Used
Suspension	Spring
Fits To Make(s)	STERLING
Stock Number	6651
MLS Number	10893164
Category	Axle Housings, Rear
Last Updated	1/15/2026
Location	Enfield, CT, US
Sold By	Camerota Truck Parts

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Eaton RS404 Rear Differential

$500 USD

Good used Eaton DS404 Rear, Rear Differential Assembly. 3.25 Ratio. 90 day guarantee for swap or refund

Condition	Used
Rear End	3.25 ratio
Fits To Make(s)	EATON
Fits To Model(s)	RS404
Stock Number	Ryd RS404/3.25/41
MLS Number	11999592
Category	Differentials, Rear
Last Updated	1/1/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

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Eaton RS404 Rear Differential

$500 USD

Good used Eaton RS404 Rear, Rear Differential Assembly. 3.36 Ratio. 90 day guarantee for swap or refund

Quantity	2
Condition	Used
Rear End	3.36 ratio
Fits To Make(s)	EATON
Fits To Model(s)	RS404
Stock Number	Ryd RS404/3.36/41
MLS Number	11402853
Category	Differentials, Rear
Last Updated	1/1/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

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Eaton RS404 Rear Differential

$500 USD

Good used Eaton DS404 Rear, Rear Differential Assembly. 2.93 Ratio. 90 day guarantee for swap or refund

Quantity	2
Condition	Used
Rear End	2.93 ratio
Fits To Make(s)	EATON
Fits To Model(s)	RS404
Stock Number	Ryd RS404/2.93/41
MLS Number	10714392
Category	Differentials, Rear
Last Updated	1/1/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

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2000 Eaton RS404 Rear Axle Housing for a Sterling A9513

$1,250 USD

(USED) Eaton RS404 Brake Type: AIR DRUM Wheel Type: PILOT Suspension: AIRLINER Track Width : 72

Condition	Used
Fits To Make(s)	Sterling
Fits To Model(s)	A9513
Stock Number	25469883
MLS Number	12285952
Category	Axle Housings, Rear
Last Updated	12/31/2025
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

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2007 Eaton RS404 Rear Differential for a International 8600

$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)	8600
Stock Number	25668602
MLS Number	12960244
Category	Differentials, Rear
Last Updated	12/29/2025
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

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Eaton RS404 Axle Shaft

$150 USD

Eaton DS404/RS404 Axle Shaft, P/N 127438

Condition	Used
Stock Number	27134
MLS Number	13969201
Category	Axle Shafts
Last Updated	12/27/2025
Location	Fresno, CA, US
Sold By	Garabedian Equipment

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2015 Eaton RS404 Rear Differential for a International Lonestar

$455 USD

(USED) Eaton RS404 Ratio: 3.36 Side Gear Splines: 41 W/ Locker: NO Cast#: 509824

Condition	Used
Fits To Make(s)	International
Fits To Model(s)	LONESTAR
Stock Number	25386056
MLS Number	12894522
Category	Differentials, Rear
Last Updated	12/20/2025
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

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2000 Eaton RS404 Rear Differential for a Peterbilt 385

$485 USD

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

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	385
Stock Number	25645830
MLS Number	12864178
Category	Differentials, Rear
Last Updated	12/6/2025
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

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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#: 127603

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	377
Stock Number	25667099
MLS Number	12973916
Category	Differentials, Rear
Last Updated	11/21/2025
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

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2002 Eaton RS404 Rear Differential for a Freightliner C120 Century

$485 USD

(USED) Eaton RS404 Ratio: 3.55 Side Gear Splines: 41 W/ Locker: NO Cast#: 123797 Ref# ASMG123797-1

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	C120 CENTURY
Part Number	ASMG123797-1
Stock Number	25794321
MLS Number	13604684
Category	Differentials, Rear
Last Updated	11/22/2025
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

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2004 Eaton RS404 Rear Differential for a Western Star 4900FA

$325 USD

(USED) Eaton RS404 Ratio: 3.70 Side Gear Splines: 41 W/ Locker: NO Cast#: 130825

Condition	Used
Fits To Make(s)	Western Star Trucks
Fits To Model(s)	4900FA
Stock Number	25806522
MLS Number	13631934
Category	Differentials, Rear
Last Updated	11/21/2025
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

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2009 Eaton RS404 Rear Axle Housing for a International Prostar

$950 USD

(USED) Eaton RS404 Brake Type: AIR DRUM Wheel Type: PILOT Suspension: HENDRICKSON Track Width : 73

Condition	Used
Fits To Make(s)	International
Fits To Model(s)	PROSTAR
Stock Number	25771872
MLS Number	13476153
Category	Axle Housings, Rear
Last Updated	11/12/2025
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

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2011 Eaton RS404 Rear Differential for a International Prostar

$375 USD

(USED) Eaton RS404 Ratio: 2.64 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812

Condition	Used
Fits To Make(s)	International
Fits To Model(s)	PROSTAR
Stock Number	25768543
MLS Number	13451012
Category	Differentials, Rear
Last Updated	11/6/2025
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

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2001 Eaton RS404 Rear Differential for a Western Star TR 4900 EX

$699.99 USD

Eaton RS404 Rear Rear Differential 3.55 Ratio, From 2001 Western Star 4900 EX VIN 5CKEDDJHX1C100274

Condition	Used
Fits To Make(s)	WESTERN STAR TR
Fits To Model(s)	4900 EX
Stock Number	146931
MLS Number	13665708
Category	Differentials, Rear
Last Updated	10/25/2025
Location	Owensboro, KY, US
Sold By	West Side Truck Parts

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2001 Eaton RS404 Front Differential for a Western Star TR 4900 EX

$999.99 USD

Eaton RS404 Front Rear Differential 3.55 Ratio, From 2001 Western Star 4900 EX VIN 5CKEDDJHX1C100274

Condition	Used
Fits To Make(s)	WESTERN STAR TR
Fits To Model(s)	4900 EX
Stock Number	146930
MLS Number	13665707
Category	Differentials, Front
Last Updated	10/25/2025
Location	Owensboro, KY, US
Sold By	West Side Truck Parts

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2014 Eaton RS404 Rear Axle Housing for a International Durastar (4400)

$850 USD

(USED) Eaton RS404 Brake Type: AIR DRUM Wheel Type: PILOT Suspension: IROS Track Width : 72

Condition	Used
Fits To Make(s)	International
Fits To Model(s)	DURASTAR (4400)
Stock Number	25405803
MLS Number	12117380
Category	Axle Housings, Rear
Last Updated	10/25/2025
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

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2006 Eaton RS404 Rear Axle Housing for a International 4400

$950 USD

(USED) Eaton RS404 Brake Type: AIR DRUM Wheel Type: PILOT Suspension: IH SPRING Track Width : 72

Condition	Used
Fits To Make(s)	International
Fits To Model(s)	4400
Stock Number	25565173
MLS Number	12538008
Category	Axle Housings, Rear
Last Updated	10/9/2025
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

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2005 Eaton RS404 Rear Differential for a International 8600

$375 USD

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

Condition	Used
Fits To Make(s)	International
Fits To Model(s)	8600
Stock Number	25622696
MLS Number	12746955
Category	Differentials, Rear
Last Updated	10/4/2025
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

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2006 Eaton RS404 Rear Axle Housing for a International 4300

$850 USD

(USED) Eaton RS404 Brake Type: AIR DRUM Wheel Type: PILOT Suspension: SPRING Track Width : Verify SURFACE RUST

Condition	Used
Fits To Make(s)	International
Fits To Model(s)	4300
Stock Number	25570406
MLS Number	12550906
Category	Axle Housings, Rear
Last Updated	9/20/2025
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.