View 1 Photo View 0 Videos Eaton RS404 Rear Differential $650 USD ConditionUsedRear End3.25 ratioStock NumberS4098 MLS Number10257544CategoryDifferentials, Rear Last Updated9/26/2026 LocationPalmyra, PA, US Sold ByBoots and Hank's Truck Parts, Inc. (833) 396-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton RS404 Rear Differential $650 USD ConditionUsedRear End2.85 ratioStock NumberBP 14645 MLS Number10263508CategoryDifferentials, Rear Last Updated9/26/2026 LocationPalmyra, PA, US Sold ByBoots and Hank's Truck Parts, Inc. (833) 396-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton RS404 Rear Differential $650 USD ConditionUsedRear End3.08 ratioStock NumberS3336RR MLS Number10335671CategoryDifferentials, Rear Last Updated9/26/2026 LocationPalmyra, PA, US Sold ByBoots and Hank's Truck Parts, Inc. (833) 396-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton RS404 Rear Differential $650 USD ConditionUsedRear End4.11 ratioStock NumberS4125 MLS Number10439038CategoryDifferentials, Rear Last Updated9/26/2026 LocationPalmyra, PA, US Sold ByBoots and Hank's Truck Parts, Inc. (833) 396-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton RS404 Rear Differential $650 USD ConditionUsedRear End4.11 ratioStock NumberBP 14776 MLS Number10445228CategoryDifferentials, Rear Last Updated9/26/2026 LocationPalmyra, PA, US Sold ByBoots and Hank's Truck Parts, Inc. (833) 396-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton RS404 Rear Differential $650 USD ConditionUsedRear End3.25 ratioStock NumberBP 14784 MLS Number10445236CategoryDifferentials, Rear Last Updated9/26/2026 LocationPalmyra, PA, US Sold ByBoots and Hank's Truck Parts, Inc. (833) 396-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton RS404 Rear Differential $650 USD ConditionUsedRear End3.25 ratioStock NumberBP 14786 MLS Number10454904CategoryDifferentials, Rear Last Updated9/26/2026 LocationPalmyra, PA, US Sold ByBoots and Hank's Truck Parts, Inc. (833) 396-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton RS404 Rear Differential $650 USD ConditionUsedRear End3.25 ratioStock NumberBP 14792 MLS Number10454910CategoryDifferentials, Rear Last Updated9/26/2026 LocationPalmyra, PA, US Sold ByBoots and Hank's Truck Parts, Inc. (833) 396-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton RS404 Rear Differential $650 USD ConditionUsedRear End4.63 ratioStock NumberBP 14744 MLS Number10418784CategoryDifferentials, Rear Last Updated9/26/2026 LocationScranton, PA, US Sold ByBoots and Hank's Truck Parts, Inc. (833) 396-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton RS404 Rear Differential $650 USD ConditionUsedRear End3.90 ratioStock NumberS4057 MLS Number10257511CategoryDifferentials, Rear Last Updated9/26/2026 LocationPalmyra, PA, US Sold ByBoots and Hank's Truck Parts, Inc. (833) 396-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton RS404 Rear Differential $650 USD ConditionUsedRear End2.64 ratioStock NumberS4062 MLS Number10257513CategoryDifferentials, Rear Last Updated9/26/2026 LocationPalmyra, PA, US Sold ByBoots and Hank's Truck Parts, Inc. (833) 396-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton RS404 Rear Differential $650 USD ConditionUsedRear End2.85 ratioStock NumberS4074 MLS Number10257515CategoryDifferentials, Rear Last Updated9/26/2026 LocationPalmyra, PA, US Sold ByBoots and Hank's Truck Parts, Inc. (833) 396-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton RS404 Rear Differential $650 USD ConditionUsedRear End3.55 ratioStock NumberS4075 MLS Number10257517CategoryDifferentials, Rear Last Updated9/26/2026 LocationPalmyra, PA, US Sold ByBoots and Hank's Truck Parts, Inc. (833) 396-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton RS404 Rear Differential $650 USD ConditionUsedRear End3.36 ratioStock NumberS4076 MLS Number10257518CategoryDifferentials, Rear Last Updated9/26/2026 LocationPalmyra, PA, US Sold ByBoots and Hank's Truck Parts, Inc. (833) 396-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton RS404 Rear Differential $550 USD ConditionUsedRear End4.88 ratioStock NumberS4080 MLS Number10257522CategoryDifferentials, Rear Last Updated9/26/2026 LocationPalmyra, PA, US Sold ByBoots and Hank's Truck Parts, Inc. (833) 396-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Eaton RS404 Rear Differential for a 2009 Kenworth T300 Contact for price (Used) 2009 Kenworth T300, DIFFERENTIAL GEARS ONLY- REMANUFACTURED!! Serial Number: M318540, Make: Eaton, Model: RS404, Ratio: 4.88, Capacity: 21,000 Lbs, Reference images for condition, For... ConditionUsedRear End4.88 ratioFits To Make(s)KenworthFits To Model(s)T300Will Fit Year(s)2009Stock NumberP-513775 MLS Number14624407CategoryDifferentials, Rear Last Updated9/24/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos 2003 Eaton RS404 Rear Differential for a International 4400 $425 USD (USED) Eaton RS404 Ratio: 3.90 Side Gear Splines: 41 W/ Locker: NO Cast#: 129543 ConditionUsedFits To Make(s)InternationalFits To Model(s)4400Stock Number25591901 MLS Number12632162CategoryDifferentials, Rear Last Updated9/5/2026 LocationCouncil Bluffs, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos 2008 Eaton RS404 Rear Differential for a International Prostar $455 USD (USED) Eaton RS404 Ratio: 3.36 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812 ConditionUsedFits To Make(s)InternationalFits To Model(s)PROSTARStock Number25651667 MLS Number12881906CategoryDifferentials, Rear Last Updated9/5/2026 LocationWinimac, IN, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos 1999 Eaton RS404 Rear Differential for a Kenworth W900L $325 USD (USED) Eaton RS404 Ratio: 3.70 Side Gear Splines: 41 W/ Locker: NO Cast#: 127603 ConditionUsedFits To Make(s)KenworthFits To Model(s)W900LStock Number25983371 MLS Number14357575CategoryDifferentials, Rear Last Updated8/30/2026 LocationWinimac, IN, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Eaton RS404 Rear Differential $500 USD Good used Eaton DS404 Rear, Rear Differential Assembly. 3.70 Ratio. 90 day guarantee for swap or refund Quantity6ConditionUsedRear End3.70 ratioStock NumberRyd RS404/3.70/41 MLS Number10295744CategoryDifferentials, Rear Last Updated8/26/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos Eaton RS404 Rear Differential $850 USD RS404-336 - Refurbished ConditionUsedRear End3.36 ratioStock NumberRS404-336-REF MLS Number14028787CategoryDifferentials, Rear Last Updated8/27/2026 LocationFresno, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 7 Photos View 0 Videos Eaton RS404 Rear Differential for a Unmarked N/A $500 USD RS404 - 4.11 Ratio - Pullout - Grade A - Unit In Good Condition. P/N 0595061, (213640) ConditionUsedRear End4.11 ratioFits To Make(s)UnmarkedFits To Model(s)N/AStock Number4539412 MLS Number13893113CategoryDifferentials, Rear Last Updated8/20/2026 LocationFresno, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton RS404 Rear Differential $800 USD #5. RS404. Hub to Hub. Ratio: 3.58. Used, Core Charge: 100.00, Ratio: 3.58 ConditionUsedRear End3.58 ratioStock Number168894 MLS Number12214006CategoryDifferentials, Rear Last Updated8/20/2026 LocationLouisville, KY, US Sold ByRiver City Truck Parts (855) 465-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos Eaton RS404 Rear Differential for a 2003 Peterbilt 379 $795 USD RS404 3.55 GOOD INSPECTED TAKEOUT/ 90 DAY WARRANTY EXCHANGE, Axle Spline Count: 41, Serial#: NA, Core Charge: 250.00, Ratio: 3.55 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)379Will Fit Year(s)2003Part NumberRSP40 RSP41 RS404Stock Number122124-3 MLS Number13315630CategoryDifferentials, Rear Last Updated8/5/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos Eaton RS404 Rear Differential $1,550 USD Weller reman diff. p/n 1415238 Eaton RS404 3.90R, Core Charge: 600.00, Ratio: 3.90 ConditionUsedRear End3.90 ratioStock Number172665 MLS Number14242491CategoryDifferentials, Rear Last Updated8/20/2026 LocationLouisville, KY, US Sold ByRiver City Truck Parts (855) 465-___ SHOWNUMBERCall Seller Email Seller Save More Info