Eaton RS404 Axles & Differentials For Sale

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RS404

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101 - 125 of 909 listings

Eaton RS404 Rear Differential

$650 USD

Condition	Used
Rear End	3.36 ratio
Stock Number	S4076
MLS Number	10257518
Category	Differentials, Rear
Last Updated	4/1/2026
Location	Palmyra, PA, US
Sold By	Boots and Hank's Truck Parts, Inc.

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Eaton RS404 Rear Differential

$650 USD

Condition	Used
Rear End	3.55 ratio
Stock Number	S4075
MLS Number	10257517
Category	Differentials, Rear
Last Updated	4/1/2026
Location	Palmyra, PA, US
Sold By	Boots and Hank's Truck Parts, Inc.

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Eaton RS404 Rear Differential

$650 USD

Condition	Used
Rear End	2.85 ratio
Stock Number	S4074
MLS Number	10257515
Category	Differentials, Rear
Last Updated	4/1/2026
Location	Palmyra, PA, US
Sold By	Boots and Hank's Truck Parts, Inc.

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Eaton RS404 Rear Differential

$650 USD

Condition	Used
Rear End	2.64 ratio
Stock Number	S4062
MLS Number	10257513
Category	Differentials, Rear
Last Updated	4/1/2026
Location	Palmyra, PA, US
Sold By	Boots and Hank's Truck Parts, Inc.

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Eaton RS404 Rear Differential

$650 USD

Condition	Used
Rear End	3.90 ratio
Stock Number	S4057
MLS Number	10257511
Category	Differentials, Rear
Last Updated	4/1/2026
Location	Palmyra, PA, US
Sold By	Boots and Hank's Truck Parts, Inc.

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Eaton RS404 Rear Differential

$550 USD

2.64,

Condition	Used
Stock Number	REAR-2287
MLS Number	14268970
Category	Differentials, Rear
Last Updated	3/26/2026
Location	LAKEVILLE, MN, US
Sold By	Manders Diesel

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Eaton RS404 Rear Differential

$1,550 USD

Weller reman diff. p/n 1415238 Eaton RS404 3.90R, Core Charge: 600.00, Ratio: 3.90

Condition	Used
Rear End	3.90 ratio
Fits To Make(s)	Eaton
Fits To Model(s)	RS404
Stock Number	172665
MLS Number	14242491
Category	Differentials, Rear
Last Updated	3/13/2026
Location	Louisville, KY, US
Sold By	River City Truck Parts

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2011 Eaton RS404 Rear Axle Housing for a Freightliner Cascadia

$950 USD

(USED) Eaton RS404 Brake Type: AIR DRUM Wheel Type: PILOT Suspension: AIRLINER Track Width : 73 Ref# NO TAG

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	CASCADIA
Part Number	NO TAG
Stock Number	25730494
MLS Number	13298151
Category	Axle Housings, Rear
Last Updated	3/13/2026
Location	Des Moines, IA, US
Sold By	Vander Haag's Inc.

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2003 Eaton RS404 Rear Axle Housing for a International 9400

$950 USD

(USED) Eaton RS404 Brake Type: AIR DRUM Wheel Type: PILOT Suspension: IROS Track Width : 73 Ref# NO TAG

Condition	Used
Fits To Make(s)	International
Fits To Model(s)	9400
Part Number	NO TAG
Stock Number	25750197
MLS Number	13391219
Category	Axle Housings, Rear
Last Updated	3/13/2026
Location	Des Moines, IA, US
Sold By	Vander Haag's Inc.

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Eaton RS404 Rear Differential

$550 USD

3.55,

Condition	Used
Stock Number	REAR-2160
MLS Number	13655794
Category	Differentials, Rear
Last Updated	3/12/2026
Location	LAKEVILLE, MN, US
Sold By	Manders Diesel

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Eaton RS404 Rear Differential

$550 USD

4.11,

Condition	Used
Stock Number	REAR-2112
MLS Number	13367434
Category	Differentials, Rear
Last Updated	3/12/2026
Location	LAKEVILLE, MN, US
Sold By	Manders Diesel

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Eaton RS404 Rear Differential

$550 USD

3.70,

Condition	Used
Stock Number	REAR-2057
MLS Number	13171436
Category	Differentials, Rear
Last Updated	3/12/2026
Location	LAKEVILLE, MN, US
Sold By	Manders Diesel

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Eaton RS404 Rear Differential

$550 USD

4.33,

Condition	Used
Stock Number	REAR-2040
MLS Number	13063199
Category	Differentials, Rear
Last Updated	3/12/2026
Location	LAKEVILLE, MN, US
Sold By	Manders Diesel

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Eaton RS404 Rear Differential

$550 USD

3.55,

Condition	Used
Stock Number	REAR-2029
MLS Number	12990021
Category	Differentials, Rear
Last Updated	3/12/2026
Location	LAKEVILLE, MN, US
Sold By	Manders Diesel

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Eaton RS404 Rear Differential

$550 USD

3.36,

Condition	Used
Stock Number	REAR-1860
MLS Number	12240647
Category	Differentials, Rear
Last Updated	3/12/2026
Location	LAKEVILLE, MN, US
Sold By	Manders Diesel

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Eaton RS404 Rear Differential

$550 USD

3.55,

Condition	Used
Stock Number	REAR-1605
MLS Number	12180164
Category	Differentials, Rear
Last Updated	3/12/2026
Location	LAKEVILLE, MN, US
Sold By	Manders Diesel

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Eaton RS404 Rear Differential

$550 USD

3.36,

Condition	Used
Stock Number	REAR-1407
MLS Number	12179965
Category	Differentials, Rear
Last Updated	3/12/2026
Location	LAKEVILLE, MN, US
Sold By	Manders Diesel

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Eaton RS404 Rear Differential

$550 USD

Condition	Used
Stock Number	REAR-1216
MLS Number	12179590
Category	Differentials, Rear
Last Updated	3/12/2026
Location	LAKEVILLE, MN, US
Sold By	Manders Diesel

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2012 Eaton RS404 Rear Differential for a Freightliner Cascadia

$585 USD

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

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	CASCADIA
Stock Number	25406685
MLS Number	12642186
Category	Differentials, Rear
Last Updated	3/11/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

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2012 Eaton RS404 Rear Axle Housing for a Freightliner Cascadia

$950 USD

(USED) Eaton RS404 Brake Type: AIR DISC Wheel Type: PILOT Suspension: AIRLINER Track Width : Verify

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	CASCADIA
Stock Number	25696322
MLS Number	13114584
Category	Axle Housings, Rear
Last Updated	3/11/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

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Eaton RS404 Rear Differential for a 2003 Kenworth T300

$695 USD

RS404 4.63 RATIO, USED TAKEOUT. WILL INSPECT IN OUR GEARSHOP, 90 DAY WARRANTY., Ratio: 4.63

Condition	Used
Rear End	4.63 ratio
Fits To Make(s)	Kenworth
Fits To Model(s)	T300
Will Fit Year(s)	2003
Stock Number	22726-3
MLS Number	14231498
Category	Differentials, Rear
Last Updated	3/9/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

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Eaton RS404 Rear Axle Housing for a 2003 Kenworth T300

$1,095 USD

RS404 AXLE HOUSING ON REYCO 79KB, Hub Bolts: 10, Suspension: REYCO 79KB, Brake Type: DRUM

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T300
Will Fit Year(s)	2003
Stock Number	22726-10
MLS Number	14231489
Category	Axle Housings, Rear
Last Updated	3/9/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

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Eaton RS404 Rear Axle Housing for a Ford

$1,500 USD

OEM 320108

Condition	Used
Suspension	Spring
Fits To Make(s)	FORD
Stock Number	6653
MLS Number	10893166
Category	Axle Housings, Rear
Last Updated	3/4/2026
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. 3.55 Ratio. 90 day guarantee for swap or refund

Quantity	3
Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	EATON
Fits To Model(s)	RS404
Stock Number	Ryd RS404/3.55/41
MLS Number	10204592
Category	Differentials, Rear
Last Updated	2/26/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

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2003 Eaton RS404 Rear Differential for a Freightliner Columbia 120

$425 USD

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

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	COLUMBIA 120
Stock Number	25495485
MLS Number	12309341
Category	Differentials, Rear
Last Updated	2/26/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.