Alliant Power Fuel Injector Return Line Seal Kit - GM 6.6L L5P/L5D Duramax - 2017-2023

Use the Alliant AP0133 Fuel Injector Return Line Seal Kit when resealing the injectors in your 17-23 L5P Duramax / 19-23 L5D Duramax. Each Bank has a rigid fuel return line that must be removed to access the injectors. This seal kit provides a cost saving alternative to replacing the entire fuel return line.