Eaton RD404 Axles &amp; Differentials For Sale

2006 Eaton RD404 Rear Axle Housing for a GMC C7500

$1,250 USD

(USED) Eaton RD404 Brake Type: AIR DRUM Wheel Type: PILOT Suspension: SPRING Track Width : 72

Condition	Used
Fits To Make(s)	GMC
Fits To Model(s)	C7500
Stock Number	25827368
MLS Number	13702083
Category	Axle Housings, Rear
Last Updated	5/20/2026
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

2012 Eaton RD404 Rear Axle Housing for a Freightliner Cascadia

$1,250 USD

(USED) Eaton RD404 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	25696187
MLS Number	13198406
Category	Axle Housings, Rear
Last Updated	5/15/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

(833) 541-___ SHOW
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Eaton RD404 Rear Axle Housing for a 1996 Western Star 4900

$1,395 USD

USED REAR AXLE HOUSING, RTE400 HENDRICKSON SUSPENSION, T-BAR TORQUE ARM, LATE BEAMS, 8 BOLT SPYDER, Hub Bolts: 10 PILOT, Suspension: RTE400, Brake Type: DRUM

Condition	Used
Fits To Make(s)	Western Star
Fits To Model(s)	4900
Will Fit Year(s)	1996
Stock Number	32225-6
MLS Number	13486050
Category	Axle Housings, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

(833) 541-___ SHOW
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Eaton RD404 Rear Differential for a 1996 Western Star 4900

$1,195 USD

RDP40 RS404/ HAS LATE CASE WITH THRUST BLOCK 3.70 LOCKER WILL INSPECT IN OUR GEAR SHOP, 90 DAY WARRANTY, Ratio: 3.70 LOCKERS

Condition	Used
Rear End	3.70 ratio
Fits To Make(s)	Western Star
Fits To Model(s)	4900
Will Fit Year(s)	1996
Part Number	RD404
Stock Number	32225-4
MLS Number	13486048
Category	Differentials, Rear
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

(888) 519-___ SHOW
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2006 Eaton RD404 Rear Axle Housing

$1,000 USD

Good used inspected Eaton RD404 Rear, Rear Axle Housing. 30 day guarantee for swap or refund

Condition	Used
Suspension	Spring
Fits To Make(s)	EATON
Fits To Model(s)	RD404
Stock Number	1071444
MLS Number	14305561
Category	Axle Housings, Rear
Last Updated	4/11/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

2009 Eaton RD404 Rear Axle Housing for a International Durastar (4400)

$1,250 USD

(USED) Eaton RD404 Brake Type: AIR DRUM Wheel Type: PILOT Suspension: IH SPRING Track Width : 73

Condition	Used
Fits To Make(s)	International
Fits To Model(s)	DURASTAR (4400)
Stock Number	25954356
MLS Number	14230828
Category	Axle Housings, Rear
Last Updated	7/23/2026
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

1997 Eaton RD404 Rear Differential for a Freightliner FLD112SD

$1,078 USD

(USED) Eaton RD404 Ratio: 3.90 Side Gear Splines: 41 W/ Locker: YES Cast#: N/A Ref# N/A

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	FLD112SD
Part Number	N/A
Stock Number	25981520
MLS Number	14327371
Category	Differentials, Rear
Last Updated	7/23/2026
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

2000 Eaton RD404 Rear Axle Housing for a Western Star 5800

$1,250 USD

(USED) Eaton RD404 Brake Type: AIR DRUM Wheel Type: PILOT Suspension: CHALMERS Track Width : 73

Condition	Used
Fits To Make(s)	Western Star Trucks
Fits To Model(s)	5800
Stock Number	25908080
MLS Number	14020946
Category	Axle Housings, Rear
Last Updated	6/25/2026
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

2009 Eaton RD404 Rear Differential for a International Durastar (4400)

$1,028 USD

(USED) Eaton RD404 Ratio: 4.88 Side Gear Splines: 41 W/ Locker: YES Cast#: ZSTPMG015687-1 Ref# RD404

Condition	Used
Fits To Make(s)	International
Fits To Model(s)	DURASTAR (4400)
Part Number	RD404
Stock Number	25954355
MLS Number	14228197
Category	Differentials, Rear
Last Updated	5/20/2026
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

(855) 980-___ SHOW
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Eaton RD404 Rear Differential

Contact for price

., Ratio: 390

Condition	Used
Rear End	3.90 ratio
Stock Number	255
MLS Number	9389775
Category	Differentials, Rear
Last Updated	5/14/2026
Location	Farr West, UT, US
Sold By	Rocky Mountain Truck Parts

(855) 624-___ SHOW
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Eaton RD404 Rear Differential for a 2002 Freightliner CENTURY CLASS

Contact for price

40 000 LBS RD 404 3.70 RATIO, NO LOCKS, Ratio: 3.70

Condition	Used
Rear End	3.70 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	CENTURY CLASS
Will Fit Year(s)	2002
Stock Number	2232-FRTLR-4
MLS Number	13339648
Category	Differentials, Rear
Last Updated	6/12/2026
Location	STURGEON COUNTY, AB, Canada
Sold By	Badger Truck Parts Ltd.

(855) 624-___ SHOW
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Eaton RD404 Rear Differential for a 1996 Freightliner FLD112

Contact for price

40,000 LBS RD404 REAR 4.11 RATIO NO LOCK, Ratio: 4.11

Condition	Used
Rear End	4.11 ratio
Fits To Make(s)	Freightliner
Fits To Model(s)	FLD112
Will Fit Year(s)	1996
Stock Number	1796-FRTLR-9
MLS Number	13338414
Category	Differentials, Rear
Last Updated	5/13/2026
Location	STURGEON COUNTY, AB, Canada
Sold By	Badger Truck Parts Ltd.

1997 Eaton RD404 Rear Axle Housing for a Freightliner FLD112SD

$1,225 USD

(USED) Eaton RD404 Brake Type: AIR DRUM Wheel Type: PILOT Suspension: AIRLINER Track Width : 72

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	FLD112SD
Stock Number	25981523
MLS Number	14330131
Category	Axle Housings, Rear
Last Updated	4/26/2026
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

2011 Eaton RDP41 Rear Differential for a Ford F750

$995 USD

(USED) Eaton RD404 Ratio: 5.57 Side Gear Splines: 41 W/ Locker: YES Cast#: 127600 Ref# 127600

Condition	Used
Fits To Make(s)	Ford
Fits To Model(s)	F750
Part Number	127600
Stock Number	25890029
MLS Number	14281120
Category	Differentials, Rear
Last Updated	4/20/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

2014 Eaton RD404 Rear Differential for a Peterbilt 388

$1,028 USD

(USED) Eaton RD404 Ratio: VERIFY Side Gear Splines: 41 W/ Locker: YES Cast#: -

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	388
Stock Number	25971357
MLS Number	14298463
Category	Differentials, Rear
Last Updated	4/9/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

(888) 519-___ SHOW
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Eaton RD404 Rear Differential

$1,700 USD

Remanufactured Eaton RD404 locking rear, rear differential assembly. 6.17 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered.

Condition	Remanufactured
Rear End	6.17 ratio
Fits To Make(s)	EATON
Fits To Model(s)	RD404
Stock Number	BP TRS RD404/6.17
MLS Number	14050289
Category	Differentials, Rear
Last Updated	3/14/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

2000 Eaton RD404 Rear Differential for a Western Star 5800

$1,028 USD

(USED) Eaton RD404 Ratio: 4.11 Side Gear Splines: 41 W/ Locker: YES Cast#: -

Condition	Used
Fits To Make(s)	Western Star Trucks
Fits To Model(s)	5800
Stock Number	25908076
MLS Number	14020947
Category	Differentials, Rear
Last Updated	2/26/2026
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

(877) 254-___ SHOW
NUMBERCall Seller

2012 Eaton RD404 Rear Differential for a Freightliner Cascadia

$1,450 USD

RS 404 USED TAKEOUT 3.70 RATIO

Condition	Used
Rear End	3.70 ratio
Fits To Make(s)	FREIGHTLINER
Fits To Model(s)	Cascadia
Stock Number	28261
MLS Number	13983365
Category	Differentials, Rear
Last Updated	12/19/2025
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

2001 Eaton RD404 Rear Axle Housing for a International 9100

$1,250 USD

(USED) Eaton RD404 Brake Type: AIR DRUM Wheel Type: PILOT Suspension: IH AIR Track Width : 72

Condition	Used
Fits To Make(s)	International
Fits To Model(s)	9100
Stock Number	25839015
MLS Number	13908147
Category	Axle Housings, Rear
Last Updated	11/6/2025
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.