7 0 Cummins ISX12N Engine for a 2021 Kenworth T680 $13,499.99 USD (Used) 2020 Cummins ISX12N, ENGINE ASSEMBLY- Family Number: LCEXH0729XBC, Displacement: 11.9L, Horsepower: 400, Ar.No./CPL: 4875, ESN: 75086869, Part Number: E6EEK19KHD6DBG6B66, E.C.S.:... ConditionUsedCPL/ARR4875Horse Power400 HPFits To Make(s)KenworthFits To Model(s)T680Will Fit Year(s)2021Part NumberE6EEK19KHD6DBG6B66Stock NumberP-95550 MLS Number13351898CategoryEngines Last Updated11/19/2025 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info