Used Eaton RS404 Axles &amp; Differentials For Sale

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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	9/26/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

Eaton RS404 Rear Differential

Recently Updated

$650 USD

Condition	Used
Rear End	3.90 ratio
Stock Number	S4057
MLS Number	10257511
Category	Differentials, Rear
Last Updated	9/26/2026
Location	Palmyra, PA, US
Sold By	Boots and Hank's Truck Parts, Inc.

Eaton RS404 Rear Differential

Recently Updated

$650 USD

Condition	Used
Rear End	2.64 ratio
Stock Number	S4062
MLS Number	10257513
Category	Differentials, Rear
Last Updated	9/26/2026
Location	Palmyra, PA, US
Sold By	Boots and Hank's Truck Parts, Inc.

Eaton RS404 Rear Differential

Recently Updated

$650 USD

Condition	Used
Rear End	2.85 ratio
Stock Number	S4074
MLS Number	10257515
Category	Differentials, Rear
Last Updated	9/26/2026
Location	Palmyra, PA, US
Sold By	Boots and Hank's Truck Parts, Inc.

Eaton RS404 Rear Differential

Recently Updated

$650 USD

Condition	Used
Rear End	3.55 ratio
Stock Number	S4075
MLS Number	10257517
Category	Differentials, Rear
Last Updated	9/26/2026
Location	Palmyra, PA, US
Sold By	Boots and Hank's Truck Parts, Inc.

Eaton RS404 Rear Differential

Recently Updated

$650 USD

Condition	Used
Rear End	3.36 ratio
Stock Number	S4076
MLS Number	10257518
Category	Differentials, Rear
Last Updated	9/26/2026
Location	Palmyra, PA, US
Sold By	Boots and Hank's Truck Parts, Inc.

Eaton RS404 Rear Differential

Recently Updated

$650 USD

Condition	Used
Rear End	2.85 ratio
Stock Number	S4091
MLS Number	10257538
Category	Differentials, Rear
Last Updated	9/26/2026
Location	Palmyra, PA, US
Sold By	Boots and Hank's Truck Parts, Inc.

Eaton RS404 Rear Differential

Recently Updated

$650 USD

Condition	Used
Rear End	3.25 ratio
Stock Number	S4098
MLS Number	10257544
Category	Differentials, Rear
Last Updated	9/26/2026
Location	Palmyra, PA, US
Sold By	Boots and Hank's Truck Parts, Inc.

Eaton RS404 Rear Differential

Recently Updated

$650 USD

Condition	Used
Rear End	2.85 ratio
Stock Number	BP 14645
MLS Number	10263508
Category	Differentials, Rear
Last Updated	9/26/2026
Location	Palmyra, PA, US
Sold By	Boots and Hank's Truck Parts, Inc.

Eaton RS404 Rear Differential

Recently Updated

$650 USD

Condition	Used
Rear End	3.08 ratio
Stock Number	S3336RR
MLS Number	10335671
Category	Differentials, Rear
Last Updated	9/26/2026
Location	Palmyra, PA, US
Sold By	Boots and Hank's Truck Parts, Inc.

Eaton RS404 Rear Differential

Recently Updated

$650 USD

Condition	Used
Rear End	4.63 ratio
Stock Number	BP 14744
MLS Number	10418784
Category	Differentials, Rear
Last Updated	9/26/2026
Location	Scranton, PA, US
Sold By	Boots and Hank's Truck Parts, Inc.

Eaton RS404 Rear Differential

Recently Updated

$650 USD

Condition	Used
Rear End	4.11 ratio
Stock Number	S4125
MLS Number	10439038
Category	Differentials, Rear
Last Updated	9/26/2026
Location	Palmyra, PA, US
Sold By	Boots and Hank's Truck Parts, Inc.

Eaton RS404 Rear Differential

Recently Updated

$650 USD

Condition	Used
Rear End	4.11 ratio
Stock Number	BP 14776
MLS Number	10445228
Category	Differentials, Rear
Last Updated	9/26/2026
Location	Palmyra, PA, US
Sold By	Boots and Hank's Truck Parts, Inc.

Eaton RS404 Rear Differential

Recently Updated

$650 USD

Condition	Used
Rear End	3.25 ratio
Stock Number	BP 14784
MLS Number	10445236
Category	Differentials, Rear
Last Updated	9/26/2026
Location	Palmyra, PA, US
Sold By	Boots and Hank's Truck Parts, Inc.

Eaton RS404 Rear Differential

Recently Updated

$650 USD

Condition	Used
Rear End	3.25 ratio
Stock Number	BP 14786
MLS Number	10454904
Category	Differentials, Rear
Last Updated	9/26/2026
Location	Palmyra, PA, US
Sold By	Boots and Hank's Truck Parts, Inc.

Eaton RS404 Rear Differential

Recently Updated

$650 USD

Condition	Used
Rear End	3.25 ratio
Stock Number	BP 14792
MLS Number	10454910
Category	Differentials, Rear
Last Updated	9/26/2026
Location	Palmyra, PA, US
Sold By	Boots and Hank's Truck Parts, Inc.

Eaton RS404 Rear Differential

Recently Updated

$550 USD

Condition	Used
Rear End	4.88 ratio
Stock Number	S4080
MLS Number	10257522
Category	Differentials, Rear
Last Updated	9/26/2026
Location	Palmyra, PA, US
Sold By	Boots and Hank's Truck Parts, Inc.

(844) 402-___ SHOW
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Eaton RS404 Rear Differential for a 2009 Kenworth T300

Newly Listed

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(Used) 2009 Kenworth T300, DIFFERENTIAL GEARS ONLY- REMANUFACTURED!! Serial Number: M318540, Make: Eaton, Model: RS404, Ratio: 4.88, Capacity: 21,000 Lbs, Reference images for condition, For...

Condition	Used
Rear End	4.88 ratio
Fits To Make(s)	Kenworth
Fits To Model(s)	T300
Will Fit Year(s)	2009
Stock Number	P-513775
MLS Number	14624407
Category	Differentials, Rear
Last Updated	9/24/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

(844) 402-___ SHOW
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Eaton RS404 Rear Axle Housing for a 2009 Kenworth T300

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(Used) 2009 Kenworth T300, DIFFERENTIAL HOUSING ONLY- REMANUFACTURED!! Serial Number: M318540, Make: Eaton, Model: RS404, Ratio: 4.88, Capacity: 21,000 Lbs, Suspension: Leaf Springs,...

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T300
Will Fit Year(s)	2009
Stock Number	P-513773
MLS Number	14624404
Category	Axle Housings, Rear
Last Updated	9/24/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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Eaton RS404 Rear Axle Assembly for a 2009 Kenworth T300

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(Used) 2009 Kenworth T300, COMPLETE REAR DIFFERENTIAL- REMANUFACTURED!! Serial Number: M318540, Make: Eaton, Model: RS404, Ratio: 4.88, Capacity: 21,000 Lbs, Hub Bolts: 10, Brake Type:...

Condition	Used
Rear End	4.88 ratio
Fits To Make(s)	Kenworth
Fits To Model(s)	T300
Will Fit Year(s)	2009
Stock Number	P-513771
MLS Number	14624402
Category	Axle Assemblies, Rear
Last Updated	9/24/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

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2008 Eaton RS404 Rear Differential for a International Prostar

Recently Updated

$615 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	25404194
MLS Number	12366391
Category	Differentials, Rear
Last Updated	9/27/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

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Used Eaton RS404 Differential - Ratio: 3.55 - Non-Locker

Newly Listed

$395 USD

Used RS404 Differential - Ratio: 3.55 - Non-Locker

Condition	Used
Fits To Make(s)	Eaton
Fits To Model(s)	RS-404
Part Number	509825
Stock Number	700-15519
MLS Number	14619070
Category	Differentials, Unspecified
Last Updated	9/23/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

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Used Eaton RS404 Differential - Ratio: 3.90 - Non-Locker

Newly Listed

$395 USD

Used RS404 Differential - Ratio: 3.90 - Non-Locker

Condition	Used
Fits To Make(s)	Eaton
Fits To Model(s)	RS-404
Part Number	RS-404
Stock Number	700-15520
MLS Number	14619069
Category	Differentials, Unspecified
Last Updated	9/23/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

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Used Eaton RS404 Differential - Ratio: 3.25 - Non-Locker

Newly Listed

$395 USD

Used RS404 Differential - Ratio: 3.25 - Non-Locker

Condition	Used
Fits To Make(s)	Eaton
Fits To Model(s)	RS-404
Part Number	RS-404
Stock Number	700-15529
MLS Number	14619066
Category	Differentials, Unspecified
Last Updated	9/23/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts