+3 15mm Turbo Vanes for 6.6l Duramax LLY 2004-2005 & 6.0l Powerstroke 2003 KB-15MM-VANES $66.95 In stock Quantity: 1 Add to Bag Product Details Nine 15.1mm Vanes for 2004.5-2005 6.6L Chevy GMC Duramax LLY & 2003 6.0L Ford Powerstroke GT3571VA Turbos. Restore your turbo's performance with our new replacement vanes! Fits: 6.6l LLY Turbos with 15mm Vanes and Ford Powerstroke 6.0L GT3571VA 2003 Note: 2005 6.6l LLY turbos require 15mm vanes. (Also found in some Powermax turbos) 2006 (+07 Classic) LBZ turbos require 13.2mm vanes. 2007-2010 LMM turbos require 12.2mm vanes. 2011-2016 LML turbos & 6.7l PSD require 11.2mm vanes. Save this product for later Favorite