Cummins STC View cart “Duramax Chevy / GMC 6.6L LLY 2004.5-2005” has been added to your cart. $10.00 Cummins STC quantity Sell us this item Category: Injectors Related products Caterpillar 3500 Fuel Injector $50.00 Sell us this item Detroit Diesel N3 Injector $51.00 Sell us this item Detroit Diesel N or C Series Injector $8.00 Sell us this item Cummins 8.3L Common Rail Injector $6.00 Sell us this item