Merchant 97327722 Injector Copper | 04.5-10 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Features: - Single copper injector sealing washer - Recommended during injector service or removal - Prevents combustion gas and fuel leaks - Ensures proper injector sealing and fit - Made from high-quality copper material - Helps maintain engine performance and efficiency - Direct replacement for worn or damaged seal - Built to meet OEM specifications Single Injector Washer for 6.6L Duramax Any time you're pulling an injector on your Duramax, it's smart to replace the copper seal—no exceptions. The Merchant Automotive Injector Copper is a brand-new replacement washer designed specifically for 2004.5 to 2016 GM 2500HD and 3500HD trucks with the 6.6L engine. It may be a small part, but it plays a huge role in making sure your injectors seal properly against the cylinder head. These copper washers are your first line of defense against combustion gas leaks and injector blow-by. Reusing old ones, even if they look okay, is just asking for trouble. Once compressed and heat-cycled, copper loses its ability to form a tight, clean seal. That’s why experienced techs always keep a few fresh washers like this one on hand whenever they’re doing injector work. Fits: 2004.5, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 GM 6.6L Duramax