0 0 Cummins ISL Cylinder Head $750 USD Used ISL T1 P/N 5319454 grade: 1 magnifluxed: Yes, Core Charge: 0.00, Casting#: 5319454 ConditionUsedStock Number174439 MLS Number13451517CategoryCylinder Heads Last Updated10/1/2025 LocationLouisville, KY, US Sold ByRiver City Truck Parts (855) 465-___ SHOWNUMBERCall Seller Email Seller Save More Info