View 3 Photos View 0 Videos 2013 Eaton S23-170D Rear Differential for a Kenworth T440 Recently Updated $2,420 USD (USED) Eaton S23-170D Ratio: 4.10 Side Gear Splines: 46 W/ Locker: YES Cast#: CANNOT VERIFY ConditionUsedFits To Make(s)KenworthFits To Model(s)T440Stock Number25719762 MLS Number13275945CategoryDifferentials, Rear Last Updated5/14/2026 LocationCouncil Bluffs, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info