4 0 2000 Cummins ISX15 Cylinder Head $3,495 USD Cummins ISX 15 Cylinder Block, P/N: 3683600 *REMANUFACTURED*. $3,495.00 FULLY REMANUFACTURED, READY FOR INSTALL NO CORE RETURN REQUIRED, ConditionUsedStock NumberRE 493 MLS Number11428210CategoryCylinder Heads Last Updated8/21/2025 LocationNiles, MI, US Sold ByWorldwide Diesel (833) 283-___ SHOWNUMBERCall Seller Email Seller Save More Info