XDP Fuel Return Line Banjo Bolt Kit (Set of 8) XD476 For 2001-2004 GM 6.6L Duramax LB7The XDP Fuel Injector Return Line Banjo Bolt Kit XD476 is a high quality replacement for the banjo bolts in your 2001 2004 GM 6. 6L Duramax LB7. During disassembly, the return line bolts are frequently damaged or stripped which can cause fuel leaks or issues during reassembly. Replacing these bolts is a great way to avoid potential leaks when installing injectors in your truck. This banjo bolt kit includes brand new bolts that are manufactured to meet