Nt: For Chevrolet Silverado 2500HD 3500HD 6.6L Diesel 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010, for GMC Sierra 2500HD 3500HD 6.6L Diesel 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010. Function: The main function of these hoses is to transport fuel from the fuel tank to the rear fuel cooler.
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