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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 Badger Truck Parts Ltd, Holst Truck Parts, Rydemore Heavy Duty 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 (15)
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Axles & Differentials (15)
   Axle Assemblies, Front (1)    Axle Housings, Front (1)    Axle Housings, Rear (1)    Axle Shafts (1)    Differential Misc. Parts (5)    Differentials, Front (6)
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DD404 (15)
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Showing 1 - 15 of 15 Listings

1 - 15 of 15 listings
1 - 15 of 15 listings
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 Updated2/9/2026
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 Updated1/17/2026
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 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 Updated3/29/2025
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
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Holst Truck Parts
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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