Search for Apdty 98042441 Egr Cooler (Upgraded Stainless Steel Tube Design) For 2007-2011 Chevy/Gmc Medium Duty Topkick/Kodiak C4, . C4500, C5500, C5, C6 6.6L Duramax Lmm Diesel Truck ($200 Core Included) on Amazon (or for the code 499000003270)