Stock replacement fuel injector feed lines for GM LML 6.6L Duramax engines. Fuel lines get rusty due to constant exposure to the elements, it is strongly recommended by OEM to replace the fuel lines after removal. BD provides zinc-plated, exact-fit fuel lines to allow for corrosion resistance and easy installation. Replaces OE Part #: 12670460 (x2), 12670468 (x2), 12670469 (x2), 12670471 (x2). Kit includes: 2x 1501170 – Cylinder 1 8, 2x 1501171 – Cylinder 3 6, 2x 1501172 – Cylinder 4 5, 2x 1501173 – Cylinder 2 7