Eaton DS404 Axles &amp; Differentials For Sale

Eaton DS404 Front Differential for a 2000 Kenworth W900

$795 USD

GOOD INSPECTED TAKEOUT 90 DAY WARRANTY EXCHANGE, Axle Spline Count: 41, Core Charge: 150, Ratio: 355, Clutch Housing Size: 1

Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	Kenworth
Fits To Model(s)	W900
Will Fit Year(s)	2000
Part Number	DS404
Stock Number	51026-3
MLS Number	14424511
Category	Differentials, Front
Last Updated	6/13/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

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Eaton DS404 Front Differential

Contact for price

DS404 Ratio:3.55, Ratio: 3.55

Condition	Used
Rear End	3.55 ratio
Stock Number	ATC2624
MLS Number	14423814
Category	Differentials, Front
Last Updated	6/13/2026
Location	Alma, AR, US
Sold By	Arkansas Truck Center

2010 Eaton DS404 Front Differential for a International Prostar

$1,325 USD

(USED) Eaton DS404 Ratio: 2.64 Side Gear Splines: 41 W/ Locker: NO Cast#: 130823 Ref# 514517

Condition	Used
Fits To Make(s)	International
Fits To Model(s)	PROSTAR
Part Number	514517
Stock Number	25987489
MLS Number	14340796
Category	Differentials, Front
Last Updated	6/12/2026
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

2007 Eaton DS404 Front Differential for a Freightliner Columbia 120

$1,325 USD

(USED) Eaton DS404 Ratio: 3.55 Side Gear Splines: 41 W/ Locker: NO Cast#: 131810

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	COLUMBIA 120
Stock Number	26013376
MLS Number	14421226
Category	Differentials, Front
Last Updated	6/14/2026
Location	Des Moines, IA, US
Sold By	Vander Haag's Inc.

1997 Eaton DS404 Front Differential for a Freightliner FLD120

$1,247 USD

(USED) Eaton DS404 Ratio: 2.85 Side Gear Splines: 41 W/ Locker: NO Cast#: -

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	FLD120
Stock Number	26013581
MLS Number	14421184
Category	Differentials, Front
Last Updated	6/14/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

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Eaton DS404 Front Differential

$2,195 USD

REBUILT EATON DS404 FRONT DIFFERENTIAL RATIO: 2.93

Condition	Remanufactured
Rear End	2.93 ratio
Stock Number	100025
MLS Number	14420037
Category	Differentials, Front
Last Updated	6/11/2026
Location	Crandall, TX, US
Sold By	Tim Jordan's Truck Parts Inc.

2009 Eaton DS404 Front Differential for a International Prostar

$1,160 USD

(USED) Eaton DS404 Ratio: 3.36 Side Gear Splines: 41 W/ Locker: NO Cast#: 132038

Condition	Used
Fits To Make(s)	International
Fits To Model(s)	PROSTAR
Stock Number	26001784
MLS Number	14388682
Category	Differentials, Front
Last Updated	6/13/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

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Eaton DS404 Front Differential

$2,150 USD

1 YEAR WARRANTY, THICK HOUSING

Condition	Remanufactured
Rear End	4.11 ratio
Stock Number	27477
MLS Number	12953370
Category	Differentials, Front
Last Updated	6/9/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

1998 Eaton DS404 Front Differential for a Freightliner FLD120

$950 USD

(USED) Eaton DS404 Ratio: 3.90 Side Gear Splines: 41 W/ Locker: NO Cast#: N/A

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	FLD120
Stock Number	26001919
MLS Number	14411673
Category	Differentials, Front
Last Updated	6/7/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

2000 Eaton DS404 Front Differential for a Peterbilt 379

$1,217 USD

(USED) Eaton DS404 Ratio: 3.70 Side Gear Splines: 41 W/ Locker: NO Cast#: 131810

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	379
Stock Number	26008033
MLS Number	14410848
Category	Differentials, Front
Last Updated	6/6/2026
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

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2004 Eaton DS404 Front Differential for a Peterbilt 387

$1,250 USD

GTO

Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	PETERBILT
Fits To Model(s)	387
Stock Number	22788
MLS Number	10534350
Category	Differentials, Front
Last Updated	6/5/2026
Location	Douglas, GA, US
Sold By	American Truck Parts, Inc.

2003 Eaton DS404 Front Differential for a Mack CX

$950 USD

(USED) Eaton DS404 Ratio: 3.90 Side Gear Splines: 41 W/ Locker: NO Cast#: 129572

Condition	Used
Fits To Make(s)	Mack
Fits To Model(s)	CX
Stock Number	26005326
MLS Number	14409606
Category	Differentials, Front
Last Updated	6/5/2026
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

2000 Eaton DS404 Front Differential for a Kenworth T800

$1,314 USD

(USED) Eaton DS404 Ratio: 4.33 Side Gear Splines: 41 W/ Locker: NO Cast#: 129546

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T800
Stock Number	26002659
MLS Number	14390605
Category	Differentials, Front
Last Updated	6/4/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

1996 Eaton DS404 Front Differential for a Volvo Wca

$950 USD

(USED) Eaton DS404 Ratio: 3.90 Side Gear Splines: 41 W/ Locker: NO Cast#: 127605

Condition	Used
Fits To Make(s)	Volvo
Fits To Model(s)	Wca
Stock Number	25976047
MLS Number	14396552
Category	Differentials, Front
Last Updated	5/29/2026
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

(833) 359-___ SHOW
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Eaton DS404 Front Differential

$2,195 USD

REBUILT EATON DS404 FRONT DIFFERENTIAL RATIO: 3.70

Condition	Remanufactured
Rear End	3.70 ratio
Stock Number	99976
MLS Number	14388048
Category	Differentials, Front
Last Updated	5/23/2026
Location	Crandall, TX, US
Sold By	Tim Jordan's Truck Parts Inc.

2001 Eaton DS404 Front Differential for a International 9100

$950 USD

(USED) Eaton DS404 Ratio: 3.90 Side Gear Splines: 41 W/ Locker: NO Cast#: 129546 Ref# NO TAG

Condition	Used
Fits To Make(s)	International
Fits To Model(s)	9100
Part Number	NO TAG
Stock Number	25993335
MLS Number	14359484
Category	Differentials, Front
Last Updated	5/20/2026
Location	Des Moines, IA, US
Sold By	Vander Haag's Inc.

Eaton DS404 Front Axle Housing for a Kenworth W900

$1,295 USD

AG200/400 DS404 DSP40 FRONT AXLE HOUSING/ VERY MINOR RUST. LOOKS GOOD, Serial#: NA, Hub Bolts: 10 PILOT, Suspension: AG200, Brake Type: DRUM

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	W900
Stock Number	AG400/200F
MLS Number	11795866
Category	Axle Housings, Front
Last Updated	5/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton DS404 Front Differential for a 2007 International 9400I

$895 USD

DS404 3.55 GOOD USED DIFFERENTIAL ASSEMBLY, 90 DAY WARRANTY, Axle Spline Count: 41, Ratio: 3.55, Clutch Housing Size: NA

Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	International
Fits To Model(s)	9400I
Will Fit Year(s)	2007
Stock Number	11921-5
MLS Number	10630243
Category	Differentials, Front
Last Updated	5/14/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton DS404 Snap Ring, Part # 129433

$3.51 USD

snap ring

Condition	New
Part Number	129433
Stock Number	129433
MLS Number	9894170
Category	Differential Misc. Parts
Last Updated	5/14/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton DS404 Front Differential for a Peterbilt 379

$1,095 USD

DS404 3.70 GOOD INSPECTED TAKEOUT 90 DAY WARRANTY, Axle Spline Count: 41, Serial#: NA, Ratio: 3.70, Clutch Housing Size: NA

Condition	Used
Rear End	3.70 ratio
Fits To Make(s)	Peterbilt
Fits To Model(s)	379
Stock Number	P-987
MLS Number	9868915
Category	Differentials, Front
Last Updated	6/13/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton DS404 Axle Shaft

$100 USD

Good used axle shaft 41 spline 3/4 straight hole 2", Axle Spline Count: 41, Length: 41, Axle Type: Non-Locker

Quantity	2
Condition	Used
Part Number	129332
Stock Number	129332
MLS Number	9005806
Category	Axle Shafts
Last Updated	5/14/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton DS404 Front Axle Housing for a 1999 Peterbilt 379

$1,095 USD

FRT HOUSING STD AIR LEAF/ BOLT ON REAR COVER. WILL FIT DSP40,DSP41 ///NOTES////, Suspension: PETE AIR LEAF

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	379
Will Fit Year(s)	1999
Stock Number	103016-8
MLS Number	9005754
Category	Axle Housings, Front
Last Updated	5/14/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton DS404 Differential Lube Trough

$6.30 USD

lube trough

Quantity	8
Condition	New
Stock Number	129577
MLS Number	9004800
Category	Differential Misc. Parts
Last Updated	5/14/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Eaton DS404 Front Axle Housing for a 1996 Peterbilt 379EXHD

$1,095 USD

GOOD USED PETERBILT AIR LEAF HOUSING

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	379EXHD
Will Fit Year(s)	1996
Stock Number	9215-7
MLS Number	9028078
Category	Axle Housings, Front
Last Updated	5/14/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts