The XDP OER Series New Fuel Rail Assembly (Driver Side) is the ideal solution for enhancing the performance and reliability of your 2011-2016 GM 6.6L Duramax LML/LGH. When contaminants from a failed fuel pump circulate through your system, they can wreak havoc on various components. Our fuel rail assembly offers a direct-fit replacement to ensure your fuel system operates smoothly while preventing future contamination. Trust XDP to elevate your diesel performance and restore your vehicle's fuel system effectively.