Eaton RS404 Rear Differentials For Sale

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.

(833) 359-___ SHOW
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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.

(877) 254-___ SHOW
NUMBERCall Seller

Eaton RS404 Rear Differential

$1,250 USD

12 MONTH WARRANTY

Condition	Remanufactured
Rear End	3.55 ratio
Stock Number	26618
MLS Number	11971671
Category	Differentials, Rear
Last Updated	12/19/2025
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

Eaton RS404 Rear Differential

$1,000 USD

Remanufactured Eaton RS404 rear, rear differential assembly. 6.50 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Condition	Remanufactured
Rear End	6.50 ratio
Fits To Make(s)	EATON
Fits To Model(s)	RS404
Stock Number	BP TRS RS404/6.50
MLS Number	14050745
Category	Differentials, Rear
Last Updated	12/18/2025
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Eaton RS404 Rear Differential

$1,000 USD

Remanufactured Eaton RS404 rear, rear differential assembly. 2.64 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Condition	Remanufactured
Rear End	2.64 ratio
Fits To Make(s)	EATON
Fits To Model(s)	RS404
Stock Number	BP TRS RS404/2.64
MLS Number	14050714
Category	Differentials, Rear
Last Updated	12/18/2025
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Eaton RS404 Rear Differential

$1,000 USD

Remanufactured Eaton RS404 rear, rear differential assembly. 3.25 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Quantity	3
Condition	Remanufactured
Rear End	3.25 ratio
Fits To Make(s)	EATON
Fits To Model(s)	RS404
Stock Number	BP TRS RS404/3.25
MLS Number	14050580
Category	Differentials, Rear
Last Updated	12/18/2025
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Eaton RS404 Rear Differential

$1,000 USD

Remanufactured Eaton RS404 rear, rear differetnial assembly. 4.33 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Quantity	3
Condition	Remanufactured
Rear End	4.33 ratio
Fits To Make(s)	EATON
Fits To Model(s)	RS404
Stock Number	BP TRS RS404/4.33
MLS Number	14050564
Category	Differentials, Rear
Last Updated	12/18/2025
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Eaton RS404 Rear Differential

$1,000 USD

Remanufactured Eaton RS404 rear, rear differential assembly. 5.57 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Quantity	2
Condition	Remanufactured
Rear End	5.57 ratio
Fits To Make(s)	EATON
Fits To Model(s)	RS404
Stock Number	BP TRS RS404/5.57
MLS Number	14050558
Category	Differentials, Rear
Last Updated	12/18/2025
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Eaton RS404 Rear Differential

$1,000 USD

Remanufactured Eaton RS404 rear, rear differential assembly. 2.93. ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Quantity	2
Condition	Remanufactured
Rear End	2.93 ratio
Fits To Make(s)	EATON
Fits To Model(s)	RS404
Stock Number	BP TRS RS404/2.93
MLS Number	14050549
Category	Differentials, Rear
Last Updated	12/18/2025
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Eaton RS404 Rear Differential

$1,000 USD

Remanufactured Eaton RS404 rear, rear differential assembly. 4.63 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Condition	Remanufactured
Rear End	4.63 ratio
Fits To Make(s)	EATON
Fits To Model(s)	RS404
Stock Number	BP TRS RS404/4.63
MLS Number	14050541
Category	Differentials, Rear
Last Updated	12/18/2025
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Eaton RS404 Rear Differential

$1,000 USD

Remanufactured Eaton RS404 rear, rear differential assebmly. 4.11 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered.

Quantity	3
Condition	Remanufactured
Rear End	4.11 ratio
Fits To Make(s)	EATON
Fits To Model(s)	RS404
Stock Number	BP TRS RS404/4.11
MLS Number	14050465
Category	Differentials, Rear
Last Updated	12/18/2025
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Eaton RS404 Rear Differential

$1,000 USD

Remanufactured Eaton RS404 rear, rear differential assembly. 3.55 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Quantity	8
Condition	Remanufactured
Rear End	3.55 ratio
Fits To Make(s)	EATON
Fits To Model(s)	RS404
Stock Number	BP TRS RS404/3.55
MLS Number	14050327
Category	Differentials, Rear
Last Updated	12/18/2025
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Eaton RS404 Rear Differential

$1,000 USD

Remanufactured Eaton RS404 rear, rear differential assembly. 3.90 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered

Quantity	9
Condition	Remanufactured
Rear End	3.90 ratio
Fits To Make(s)	EATON
Fits To Model(s)	RS404
Stock Number	BP TRS RS404/3.90
MLS Number	14050292
Category	Differentials, Rear
Last Updated	12/18/2025
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Eaton RS404 Rear Differential

$1,000 USD

Remanufactured Eaton RS404 rear, rear differential assembly. 3.70 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered.

Quantity	3
Condition	Remanufactured
Rear End	3.70 ratio
Fits To Make(s)	EATON
Fits To Model(s)	RS404
Stock Number	BP TRS RS404/3.70
MLS Number	14050291
Category	Differentials, Rear
Last Updated	12/18/2025
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

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.

(855) 794-___ SHOW
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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.