Fuel filler neck leaking? This replacement fuel filler neck is precision-engineered and thoroughly tested to match the original filler neck for specific vehicle years, makes and models for a reliable repair. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Chevrolet R-15: 2005, 2006, 2007] - [Chevrolet Silverado 1500 HD: 2006] - [Chevrolet Silverado 1500: 2004, 2005, 2006] - [Chevrolet Silverado 2500 HD: 2004, 2005, 2006] - [Chevrolet Silverado 2500: 2004, 2005, 2006] - [Chevrolet Silverado 3500: 2004, 2005, 2006] - [GMC Sierra 1500 HD: 2006] - [GMC Sierra 1500: 2004, 2005] - [GMC Sierra 2500 HD: 2004, 2005, 2006] - [GMC Sierra 2500: 2004] - [GMC Sierra 3500: 2004, 2005, 2006]