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Eaton DD404 Axles & Differentials For Sale

Shop new, used, and remanufactured Eaton DD404 Axles & Differentials on MyLittleSalesman.com . Compare active listings with prices from $65 to $3,300. Sellers include Holst Truck Parts, Badger Truck Parts Ltd, Rocky Mountain Truck Parts, and more. Filter by condition, price, or year to find the Eaton DD404 that fits your job.
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Truck Parts (14)
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Axles & Differentials (14)
   Axle Assemblies, Front (1)    Axle Housings, Front (1)    Axle Housings, Rear (1)    Differential Misc. Parts (5)    Differentials, Front (6)
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Showing 1 - 14 of 14 Listings

1 - 14 of 14 listings
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Eaton DD404 Front Axle Housing for a 1996 Western Star 4900

Eaton DD404 Front Axle Housing for a 1996 Western Star 4900

$1,395 USD
USED FRONT AXLE HOUSING, RTE400 HENDRICKSON SUSPENSION, T-BAR TORQUE ARM, LATE BEAMS, 8 BOLT SPYDER., Hub Bolts: 10 PILOT, Suspension: RTE400, Brake Type: DRUM
ConditionUsed
Fits To Make(s)Western Star
Fits To Model(s)4900
Will Fit Year(s)1996
Stock Number32225-5
MLS Number13486049
CategoryAxle Housings, Front
Last Updated5/15/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
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Holst Truck Parts
Eaton DD404 Front Axle Assembly for a 2004 Peterbilt 379

Eaton DD404 Front Axle Assembly for a 2004 Peterbilt 379

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2004 PETE 379 DANA E 1200I STEER AXLE, 2 LEAF, ABS, DRUM BRAKE, 12000 LBS, Serial#: NA, Hub Bolts: 10, Ratio: 3.90, Brake Type: DRUM
ConditionUsed
Rear End3.90 ratio
Fits To Make(s)Peterbilt
Fits To Model(s)379
Will Fit Year(s)2004
Stock Number3880-PETE-6
MLS Number14095830
CategoryAxle Assemblies, Front
Last Updated6/27/2026
Location
STURGEON COUNTY, AB, Canada
Sold By
Badger Truck Parts Ltd.
(855) 624-___  SHOW
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Badger Truck Parts Ltd.
Eaton DD404 Front Differential for a 2004 Peterbilt 379

Eaton DD404 Front Differential for a 2004 Peterbilt 379

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2004 PETE 379 EATON 404 FRONT DIFF WITH LOCK, 3.90 RATIO, LOW AIRLEAF SUSPENSION, Serial#: NA, Ratio: 3.90, Casting#: NA
ConditionUsed
Rear End3.90 ratio
Fits To Make(s)Peterbilt
Fits To Model(s)379
Will Fit Year(s)2004
Stock Number3880-PETE-4
MLS Number14095827
CategoryDifferentials, Front
Last Updated6/13/2026
Location
STURGEON COUNTY, AB, Canada
Sold By
Badger Truck Parts Ltd.
(855) 624-___  SHOW
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Badger Truck Parts Ltd.
Eaton DD404 Front Differential

Eaton DD404 Front Differential

$3,300 USD
New OE Eaton DD404 Front, rear full locking differential assemlby. 3.90 ratio, 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered
ConditionNew
Rear End3.90 ratio
Fits To Make(s)EATON
Fits To Model(s)DD404
Stock NumberBP TRS DD404/3.90 O
MLS Number14050769
CategoryDifferentials, Front
Last Updated2/14/2026
Location
Fitchburg, MA, US
Sold By
Rydemore Heavy Duty Truck Parts
(888) 519-___  SHOW
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Rydemore Heavy Duty Truck Parts
Eaton DD404 Front Differential

Eaton DD404 Front Differential

$2,700 USD
Remanufactured Eaton DD404 Front, rear differential assemlby. 3.90 ratio, 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered
Quantity2
ConditionRemanufactured
Rear End3.90 ratio
Fits To Make(s)EATON
Fits To Model(s)DD404
Stock NumberBP TRS DD404/3.90
MLS Number14050232
CategoryDifferentials, Front
Last Updated12/18/2025
Location
Fitchburg, MA, US
Sold By
Rydemore Heavy Duty Truck Parts
(888) 519-___  SHOW
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Rydemore Heavy Duty Truck Parts
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