Eaton RS404 Axles &amp; Differentials For Sale

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Eaton RS404 Rear Differential for a 2005 Freightliner COLUMBIA

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-, Ratio: 370, Part Make: Eaton

Condition	Used
Rear End	3.70 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	COLUMBIA
Will Fit Year(s)	2005
Stock Number	N65350-5
MLS Number	9388918
Category	Differentials, Rear
Last Updated	5/14/2026
Location	Farr West, UT, US
Sold By	Rocky Mountain Truck Parts

(855) 465-___ SHOW
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Eaton RS404 Rear Differential

$1,550 USD

Weller reman diff. p/n 1415238 Eaton RS404 3.90R - Ratio: 3.90, 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	6/13/2026
Location	Louisville, KY, US
Sold By	River City Truck Parts

(855) 465-___ SHOW
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Eaton RS404 Rear Differential for a 1999 Freightliner FLD112

$950 USD

RS404.Hub to Hub. Ratio: 3.90. Still in frame cut Tag #169269 tandem with diff tag #166959. Out of Truck #590. - Ratio: 3.90;Locker?: NO locker: NO, Core Charge: 300.00, Ratio: 3.90

Condition	Used
Rear End	3.90 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	FLD112
Will Fit Year(s)	1999
Stock Number	166960
MLS Number	12424896
Category	Differentials, Rear
Last Updated	6/13/2026
Location	Louisville, KY, US
Sold By	River City Truck Parts

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Eaton RS404 Rear Differential

$800 USD

#5. RS404. Hub to Hub. Ratio: 3.58. Used - Ratio: 3.58;Locker?: NO locker: NO, Core Charge: 100.00, Ratio: 3.58

Condition	Used
Rear End	3.58 ratio
Fits To Make(s)	Eaton
Fits To Model(s)	RS404
Stock Number	168894
MLS Number	12214006
Category	Differentials, Rear
Last Updated	6/13/2026
Location	Louisville, KY, US
Sold By	River City Truck Parts

(855) 624-___ SHOW
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Eaton RS404 Rear Differential for a 2004 Peterbilt 379

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2004 PETE 379 EATON 405 REAR DIFF WITH LOCK, LOW AIR LEAF SUSPENSION, ABS, DRUM BRAKE, 40000 LBS, Serial#: NA, Ratio: 3.90, Casting#: NA

Condition	Used
Rear End	3.90 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	379
Will Fit Year(s)	2004
Stock Number	3880-PETE-5
MLS Number	14095829
Category	Differentials, Rear
Last Updated	6/26/2026
Location	STURGEON COUNTY, AB, Canada
Sold By	Badger Truck Parts Ltd.

(855) 624-___ SHOW
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Eaton RS404 Rear Differential for a 2000 Kenworth T600

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3.70 RATIO, Ratio: 3.70

Condition	Used
Rear End	3.70 ratio
Fits To Make(s)	Kenworth
Fits To Model(s)	T600
Will Fit Year(s)	2000
Stock Number	2892-KW-3
MLS Number	13341903
Category	Differentials, Rear
Last Updated	6/13/2026
Location	STURGEON COUNTY, AB, Canada
Sold By	Badger Truck Parts Ltd.

(855) 750-___ SHOW
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2005 Eaton RS404 Rear Axle Housing for a International 8600

$1,500 USD

OEM 320629, W/TORQUE ARM BRACKET

Condition	Used
Fits To Make(s)	INTERNATIONAL
Fits To Model(s)	8600
Stock Number	3505
MLS Number	10892204
Category	Axle Housings, Rear
Last Updated	5/12/2026
Location	Enfield, CT, US
Sold By	Camerota Truck Parts

(855) 370-___ SHOW
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1999 Eaton RS404 Rear Differential for a Kenworth W900L

$325 USD

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

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	W900L
Stock Number	25983371
MLS Number	14357575
Category	Differentials, Rear
Last Updated	5/8/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

Eaton RS404 Rear Differential

$1,350 USD

RS404-463 - Rebuilt

Condition	Remanufactured
Rear End	4.63 ratio
Stock Number	RS404-463-REB
MLS Number	13962041
Category	Differentials, Rear
Last Updated	5/5/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

(855) 370-___ SHOW
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2007 Eaton RS404 Rear Differential for a International 9400

$325 USD

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

Condition	Used
Fits To Make(s)	International
Fits To Model(s)	9400
Part Number	131812
Stock Number	25421304
MLS Number	12051636
Category	Differentials, Rear
Last Updated	4/29/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

Eaton RS404 Rear Differential

$850 USD

RS404-370 - Refurbished

Condition	Used
Rear End	3.70 ratio
Stock Number	RS404-370-REF
MLS Number	14028790
Category	Differentials, Rear
Last Updated	4/28/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

(844) 402-___ SHOW
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Eaton RS404 Rear Differential for a 1999 Chevrolet C7500

$849.99 USD

(USED) 1999 Chevrolet C7500 - TANDEM CUTOFF - Make: Eaton. Model: RS404. Ratio: 3.90. Hub Bolts: 10. Brake Type: Air. For more information about this item, give us a call. We ship...

Condition	Used
Rear End	3.90 ratio
Fits To Make(s)	Chevrolet
Fits To Model(s)	C7500
Will Fit Year(s)	1999
Stock Number	P-25813
MLS Number	10922030
Category	Differentials, Rear
Last Updated	6/13/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

(844) 604-___ SHOW
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Eaton RS404 Front Axle Assembly for a 2002 Freightliner Columbia 120

$350 USD

Good, used complete Front Steer Axle off a 2002 Freightliner truck. The differential make is a Eaton. The differential model is RS404. The front steer axle has been inspected and is in good...

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	Columbia 120
Will Fit Year(s)	2002
Part Number	220486-20
Stock Number	220486-9
MLS Number	12482662
Category	Axle Assemblies, Front
Last Updated	6/13/2026
Location	Kankakee, IL, US
Sold By	River Valley Truck Parts

Eaton RS404 Rear Differential

$1,350 USD

RS404-336 - Rebuilt

Condition	Remanufactured
Rear End	3.36 ratio
Stock Number	RS404-336-REB
MLS Number	13962034
Category	Differentials, Rear
Last Updated	4/28/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

Eaton RS404 Rear Differential

$200 USD

RS404 - 3.70 Ratio - Core - Grade D - Burnt Unit - Broken Gearset, Main Case Worn. CORE UNIT SOLD AS-IS.

Condition	Used
Rear End	3.70 ratio
Stock Number	27180
MLS Number	14080072
Category	Differentials, Rear
Last Updated	4/14/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

Eaton RS404 Rear Differential

$850 USD

RS404-717 - Refurbished

Condition	Used
Rear End	7.17 ratio
Stock Number	RS404-717-REF
MLS Number	14028802
Category	Differentials, Rear
Last Updated	4/14/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

Eaton RS404 Rear Differential

$850 USD

RS404-650 - Refurbished

Condition	Used
Rear End	6.50 ratio
Stock Number	RS404-650-REF
MLS Number	14028801
Category	Differentials, Rear
Last Updated	4/14/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

Eaton RS404 Rear Differential

$850 USD

RS404-617 - Refurbished

Condition	Used
Rear End	6.17 ratio
Stock Number	RS404-617-REF
MLS Number	14028799
Category	Differentials, Rear
Last Updated	4/14/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

Eaton RS404 Rear Differential

$850 USD

RS404-557 - Refurbished

Condition	Used
Rear End	5.57 ratio
Stock Number	RS404-557-REF
MLS Number	14028798
Category	Differentials, Rear
Last Updated	4/14/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

Eaton RS404 Rear Differential

$850 USD

RS404-529 - Refurbished

Condition	Used
Rear End	5.29 ratio
Stock Number	RS404-529-REF
MLS Number	14028796
Category	Differentials, Rear
Last Updated	4/14/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

Eaton RS404 Rear Differential

$850 USD

RS404-488 - Refurbished

Condition	Used
Rear End	4.88 ratio
Stock Number	RS404-488-REF
MLS Number	14028795
Category	Differentials, Rear
Last Updated	4/14/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

Eaton RS404 Rear Differential

$850 USD

RS404-463 - Refurbished

Condition	Used
Rear End	4.63 ratio
Stock Number	RS404-463-REF
MLS Number	14028794
Category	Differentials, Rear
Last Updated	4/14/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

Eaton RS404 Rear Differential

$850 USD

RS404-433 - Refurbished

Condition	Used
Rear End	4.33 ratio
Stock Number	RS404-433-REF
MLS Number	14028793
Category	Differentials, Rear
Last Updated	4/14/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

Eaton RS404 Rear Differential

$850 USD

RS404-411 - Refurbished

Condition	Used
Rear End	4.11 ratio
Stock Number	RS404-411-REF
MLS Number	14028792
Category	Differentials, Rear
Last Updated	4/14/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment