View 1 Photo View 0 Videos Eaton DS404 Front Differential for a 1999 Freightliner CENTURY CLASS 120 $995 USD DS404 3.55 INSPECTED IN OUR GEAR SHOP 90 DAY WARRANTY, Ratio: 3.55 ConditionUsedRear End3.55 ratioFits To Make(s)FreightlinerFits To Model(s)CENTURY CLASS 120Will Fit Year(s)1999Stock Number42623-1 MLS Number12027841CategoryDifferentials, Front Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton IAD for DSP40 DS404, Part # 128634 134192 129771 $130.89 USD IAD FOR DSP 40 DS404, Serial#: 128634, Core Charge: N/A, Casting#: 128634 ConditionNewPart Number128634 134192 129771Stock Number128634 MLS Number11994130CategoryDifferential Misc. Parts Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS404 Front Differential for a 2007 International 9900IX $995 USD DS405 3.55 GOOD INSPECTED TAKEOUT, 90 DAY WARRANTY EXCHANGE, Axle Spline Count: 41, Serial#: NA, Core Charge: 150.00, Ratio: 3.55 ConditionUsedFits To Make(s)InternationalFits To Model(s)9900IXWill Fit Year(s)2007Part NumberDS405Stock Number21723-10 MLS Number11930476CategoryDifferentials, Front Last Updated6/13/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos Eaton DS404 Front Axle Housing for a 1998 Kenworth T800 $1,295 USD GOOD USED FRONT HOUSING/ EARLY BOLT ON REAR THRU SHAFT COVER. LOOKS GOOD/ WILL INSPECT SURFACES, WILL FIT IN PLACE OF WELDED ON REAR THRU SHAFT COVER. AG200 / AG400 DS404, Serial#: NA, Core... ConditionUsedFits To Make(s)KenworthFits To Model(s)T800Will Fit Year(s)1998Part NumberNAStock Number21923-8 MLS Number11926322CategoryAxle Housings, Front Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS404 5.57 Gearset, Part # 211475 513375 511283 $352.69 USD DS404 5.57 GEARSET, Serial#: 513375, Core Charge: N/A, Casting#: 513375 ConditionNewPart Number211475 513375 511283Stock Number513375 MLS Number11873955CategoryDifferential Misc. Parts Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS404 Front Axle Housing for a 1996 Peterbilt 379 $1,295 USD GOOD USED STANDARD AIR LEAF AXLE HOUSING WILL INSPECT, Serial#: NA, Core Charge: NA, Hub Bolts: 10, Suspension: AIR LEAF ConditionUsedFits To Make(s)PeterbiltFits To Model(s)379Will Fit Year(s)1996Part NumberAIR LEAFStock Number11523-2 MLS Number11841041CategoryAxle Housings, Front Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS404 Axle Shaft $201.42 USD NEW AXLE SHAFT FITS MANY DS404/RS404 DSP40/RSP40 NON LOCKER 38.976" 8 HOLE 9/16 STRAIGHT HOLE, Axle Spline Count: 41, Serial#: NA, Length: 38.976, Axle Type: Non-Locker ConditionNewPart Number127437 SD884 S-D884 920190Stock Number920190 SD884 MLS Number11830322CategoryAxle Shafts Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS404 Front Differential for a 1999 Kenworth W900 $995 USD DS404 3.70 GOOD INSPECTED TAKEOUT. 90 DAY WARRANTY EXCHANGE, Axle Spline Count: 41, Serial#: NA, Core Charge: 250, Ratio: 3.70 ConditionUsedFits To Make(s)KenworthFits To Model(s)W900Will Fit Year(s)1999Part NumberDS-404Stock Number110822-9 MLS Number11724529CategoryDifferentials, Front Last Updated6/13/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos Eaton DS404 Front Axle Housing for a 1999 Kenworth W900 $1,495 USD GOOD USED FRONT HOUSING ASSEMBLY/ DSP40 DSP41, AG200 / AG400 NO RUST. LOOKS GOOD/ SURFACES WILL BE CHECKED, Serial#: NA, Hub Bolts: 10, Suspension: AG200, Brake Type: S CAM ConditionUsedFits To Make(s)KenworthFits To Model(s)W900Will Fit Year(s)1999Part NumberNAStock Number110822-5 MLS Number11724525CategoryAxle Housings, Front Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS404 3.90 Gearset, Part # 513381 211468 $175 USD DS404 USED GEARSET 3.90, Serial#: 513381, Core Charge: N/A, Casting#: 513381 ConditionUsedPart Number513381 211468Stock Number513381 USED MLS Number11612149CategoryDifferential Misc. Parts Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS404 Pinion Nut Roll Pin, Part # 118807 $1.35 USD PINION NUT ROLL PIN FOR DS404 AND OTHER MODELS, Serial#: 118807, Core Charge: N/A, Casting#: 118807 ConditionNewPart Number118807Stock Number118807 MLS Number11411527CategoryDifferential Misc. Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS404 Thin Mounting Flange Bolt Kit $79.73 USD DS404 THIN MOUNTING FLANGE BOLT KIT, Serial#: 511600, Core Charge: N/A, Casting#: 511600 ConditionNewPart Number511600 EAT511600Stock Number511600 MLS Number11293333CategoryDifferential Misc. Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS404 Helical Gear Bushing, Part # 129371 920090 $48.60 USD HELICAL GEAR BUSHING DS 404 AND OTHER MODELS, Serial#: 129371, Core Charge: N/A, Casting#: 129371 ConditionNewPart Number129371 920090Stock Number129371 MLS Number11293331CategoryDifferential Misc. Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS404 Front Differential for a 1998 Freightliner C120 CENTURY $995 USD DS404 3.55 GOOD INSPECTED TAKEOUT. 90 DAY WARRANTY, Axle Spline Count: 41, Serial#: NA, Core Charge: 150.00, Ratio: 3.55 ConditionUsedFits To Make(s)FreightlinerFits To Model(s)C120 CENTURYWill Fit Year(s)1998Part NumberDS-404Stock Number30722-7 MLS Number11259382CategoryDifferentials, Front Last Updated6/13/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton Breather and Tube Kit for DS404 and RS404, Part # 507162 $18.85 USD BREATHER AND TUBE KIT FOR DS404 AND RS404 AND OTHER EATON MODELS, Serial#: 507162, Core Charge: N/A, Casting#: 507162 ConditionNewPart Number507162Stock Number507162 MLS Number11224488CategoryDifferential Misc. Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS404 Front Gear Set 4.63, Serial # 513378 $185 USD DS404 FRONT GEAR SET USED 4.63, Serial#: 513378, Core Charge: N/A, Casting#: 513378 ConditionUsedPart Number513378 211472Stock Number513378 USED MLS Number11205812CategoryDifferential Misc. Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS404 Axle Shaft $186.54 USD NEW EATON STYLE AXLE SHAFT. 8 HOLE TAPER AXLE BOLTS WITH .948 HOLES. 2.10-41 SPINE, Axle Spline Count: 41, Serial#: 128516, Length: 38.976, Axle Type: Non-Locker ConditionNewPart Number128516Stock NumberS-E633 MLS Number11202348CategoryAxle Shafts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS404 3.08 Gearset, Part # 513386 211464 $175 USD DS404 3.08 USED GEARSET, Serial#: 513386USED, Core Charge: N/A, Casting#: 513386USED ConditionUsedPart Number513386 211464Stock Number513386 USED MLS Number11156741CategoryDifferential Misc. Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS404 Front Axle Housing for a 2001 Peterbilt 378 $1,150 USD DS404 QUADRAFLEX FRT HOUSING, Hub Bolts: 10 PILOT, Suspension: QUADRAFLEX ConditionUsedFits To Make(s)PeterbiltFits To Model(s)378Will Fit Year(s)2001Stock Number110121-2 MLS Number11093907CategoryAxle Housings, Front Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS404 3.70 Gearset, Serial # 513382 $165 USD USED DS404 3.70 GEARSET, Serial#: 513382 USED, Core Charge: N/A, Casting#: 513382 USED ConditionUsedPart Number513382Stock Number513382 USED MLS Number11078280CategoryDifferential Misc. Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS404 5.29 Gearset, Serial # 513376 $165 USD USED DS404 5.29 GEARSET, Serial#: 513376, Core Charge: N/A, Casting#: 513376 ConditionUsedPart Number513376 211474Stock Number513376 USED MLS Number11078279CategoryDifferential Misc. Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS404/DSP40 3.08 Front Gear Set, Part # 513386 $263.20 USD ds404 dsp 40 3.08 front gear set, Serial#: 513386, Core Charge: N/A, Casting#: 513386 ConditionNewPart Number513386Stock Number513386 MLS Number11046002CategoryDifferential Misc. Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos Eaton DS404 Front Axle Housing for a 1996 Western Star 4900 $995 USD FRT HOUSING HENDRICKSON AIR DS404 4900 WEST STAR, Hub Bolts: 10, Suspension: HENDRICKSON AIR RIDE ConditionUsedFits To Make(s)Western StarFits To Model(s)4900Will Fit Year(s)1996Stock Number82421-16 MLS Number11001801CategoryAxle Housings, Front Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos Eaton DS404 Front Differential for a 1996 Western Star 4900 $995 USD DS404 3.70 GOOD INSPECTED DS404 3.70 90 DAY WARRANTY, Ratio: 3.70 ConditionUsedRear End3.70 ratioFits To Make(s)Western StarFits To Model(s)4900Will Fit Year(s)1996Stock Number82421-8 MLS Number11001793CategoryDifferentials, Front Last Updated6/13/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DS404 Front Axle Housing for a 1999 Kenworth T800 $1,295 USD GOOD USED FRONT AXLE HOUSING AG200 / AG400, DS404 DSP40 DSP41, Serial#: NA, Hub Bolts: 10, Suspension: AG200, Brake Type: S CAM ConditionUsedFits To Make(s)KenworthFits To Model(s)T800Will Fit Year(s)1999Part NumberNAStock Number52321-6 MLS Number10803321CategoryAxle Housings, Front Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info