View 7 Photos View 0 Videos Eaton RS404 Rear Axle Assembly for a 2009 Kenworth T300 Newly Listed Contact for price (Used) 2009 Kenworth T300, COMPLETE REAR DIFFERENTIAL- REMANUFACTURED!! Serial Number: M318540, Make: Eaton, Model: RS404, Ratio: 4.88, Capacity: 21,000 Lbs, Hub Bolts: 10, Brake Type:... ConditionUsedRear End4.88 ratioFits To Make(s)KenworthFits To Model(s)T300Will Fit Year(s)2009Stock NumberP-513771 MLS Number14624402CategoryAxle Assemblies, Rear Last Updated9/24/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info