View 2 Photos View 0 Videos Eaton DT402P Rear Differential for a 1990 Kenworth T800 $1,495 USD RT402 RR USED T.O 4.88/6.65 RATIO. WILL INSPECT IN OUR GEARSHOP, 90 DAY WARRANTY., Core Charge: 500.00, Ratio: 488/665 ConditionUsedFits To Make(s)KenworthFits To Model(s)T800Will Fit Year(s)1990Part NumberRT402Stock Number40726-2 MLS Number14310130CategoryDifferentials, Rear Last Updated9/10/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info