View 1 Photo View 0 Videos Eaton DD404 Front Axle Assembly for a 2004 Peterbilt 379 Contact for price 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 ConditionUsedRear End3.90 ratioFits To Make(s)PeterbiltFits To Model(s)379Will Fit Year(s)2004Stock Number3880-PETE-6 MLS Number14095830CategoryAxle Assemblies, Front Last Updated2/9/2026 LocationSTURGEON COUNTY, AB, Canada Sold ByBadger Truck Parts Ltd. (855) 624-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DD404 Front Differential for a 2004 Peterbilt 379 Contact for price 2004 PETE 379 EATON 404 FRONT DIFF WITH LOCK, 3.90 RATIO, LOW AIRLEAF SUSPENSION, Serial#: NA, Ratio: 3.90, Casting#: NA ConditionUsedRear End3.90 ratioFits To Make(s)PeterbiltFits To Model(s)379Will Fit Year(s)2004Stock Number3880-PETE-4 MLS Number14095827CategoryDifferentials, Front Last Updated1/17/2026 LocationSTURGEON COUNTY, AB, Canada Sold ByBadger Truck Parts Ltd. (855) 624-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos 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 ConditionUsedFits To Make(s)Western StarFits To Model(s)4900Will Fit Year(s)1996Stock Number32225-5 MLS Number13486049CategoryAxle Housings, Front Last Updated3/29/2025 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DD404 Differential Part $64.78 USD axle lock shift fork, Serial#: 128609, Core Charge: N/A, Casting#: 128609 ConditionNewPart Number217465 128609Stock Number217465 MLS Number9468897CategoryDifferential Misc. Parts Last Updated10/25/2024 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DD404 Differential Part $193.56 USD PLAIN SIDE LOCKER HUB DD404 AND OTHER VARIOUS MODELS, Serial#: 128627, Core Charge: N/A, Casting#: 128627 ConditionNewPart Number128627Stock Number128627 MLS Number11293334CategoryDifferential Misc. Parts Last Updated5/19/2023 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 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 ConditionNewRear End3.90 ratioFits To Make(s)EATONFits To Model(s)DD404Stock NumberBP TRS DD404/3.90 O MLS Number14050769CategoryDifferentials, Front Last Updated2/14/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 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 Quantity2ConditionRemanufacturedRear End3.90 ratioFits To Make(s)EATONFits To Model(s)DD404Stock NumberBP TRS DD404/3.90 MLS Number14050232CategoryDifferentials, Front Last Updated12/18/2025 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Eaton DD404 Axle Shaft $225 USD GOOD USED 404/DSP40 RSP40 DDP40 DD404 RD404 LOCKER SHAFT 3/4 STRAIGHT HOLE INTERNATIONAL/VOLVO Shaft, Rear Drive Axle, Differential Lock, 1.87 Od, 42.460 Spline Length, 11 Flange Length,... ConditionUsedPart Number128559Stock Number128559 MLS Number13311517CategoryAxle Shafts Last Updated1/4/2025 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Eaton DD404 Front Differential Contact for price GOOD USED, Ratio: 370 ConditionUsedRear End3.70 ratioStock Number109987 MLS Number12889614CategoryDifferentials, Front Last Updated5/23/2024 LocationFarr West, UT, US Sold ByRocky Mountain Truck Parts (855) 980-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2004 Eaton DD404 Rear Axle Housing for a Mack CX613 VISION $1,500 USD OEM# 320450, REAR REAR HOUSING ConditionUsedFits To Make(s)MACKFits To Model(s)CX613 VISIONStock Number15125 MLS Number11980631CategoryAxle Housings, Rear Last Updated12/21/2023 LocationEnfield, CT, US Sold ByCamerota Truck Parts (855) 750-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Eaton DD404 Front Differential Contact for price REBUILT 12 MONTH WARRANTY ConditionRemanufacturedRear End4.33 ratioStock Number26450 MLS Number11839007CategoryDifferentials, Front Last Updated12/15/2025 LocationDouglas, GA, US Sold ByAmerican Truck Parts, Inc. (877) 254-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2011 Eaton DD404 Front Differential for a International PROSTAR $1,850 USD GTO ConditionUsedRear End3.55 ratioFits To Make(s)INTERNATIONALFits To Model(s)PROSTARStock Number24045 MLS Number10534768CategoryDifferentials, Front Last Updated12/15/2025 LocationDouglas, GA, US Sold ByAmerican Truck Parts, Inc. (877) 254-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Eaton DD404 Differential Part $667.82 USD bearing kit fits DDP40 or DDH40 after 6/16/08 ConditionNewPart Numberdrk428aStock Numberdrk428a MLS Number9002964CategoryDifferential Misc. Parts Last Updated4/20/2020 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Eaton DD404 Differential Part $641.37 USD bearing kit fits DDH40-41 or DDP40-41 before 6/16/08 ConditionNewPart Numberdrk428Stock Numberdrk428 MLS Number9002963CategoryDifferential Misc. Parts Last Updated4/20/2020 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Eaton DD404 Differential Part $93.50 USD piston cover for locker ConditionNewStock Number129425 MLS Number9679427CategoryDifferential Misc. Parts Last Updated4/9/2020 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info