Sale 29% Off OEM GM AC DELCO Replacement EGR Cooler 12688224 2017-2021 L5P Duramax OEM GM AC DELCO Replacement EGR Cooler 2017-2021 L5P Duramax AC DELCO NUMBER 12688224 MSRP: $677.38 Was: Now: $477.38 Out of stock. Please Call For Availability