Here we have a good used and running well complete 6.6 LLY Duramax engine assembly removed from a 2004 GMC 2500hd. This will be a direct swap for all 04-05 2500/3500 trucks, This engine will come with fresh new glow plugs installed prior to shipment. This is being sold as a complete engine with all accessories and fuel system but WITHOUT any electrical. 60 day warranty covers the long block components only, does not cover any serviceable bolt on items which can be swapped from your core engine that we dont need back.