Home /Shop by Part/Catalytic Converter - Direct Fit/Hummer Searching for Hummer Catalytic Converter - Direct Fit Narrow The Number Of Models Shown By Telling Us The Year Year 2010 2009 2008 2007 2006 Choose your Hummer Model H H3 Catalytic Converter - Direct Fit Over 3,500 Installation Videos Watch the 1A Auto Videos We're here to help 888-844-3393 hablamos español: 866-401-3393 SUBSCRIBE TO OUR NEWSLETTER News & tips to your inbox Submit Customer Feedback "Thanks for the fast reliable service. Great price, and the headlights were as good as oem or better!!! Keep up the good work..." - Dwuan M. Read More Hummer is a registered trademark of General Motors Company. 1A Auto is not affiliated with or sponsored by Hummer or General Motors Company. See all trademarks.