The SPECTRA PREMIUM INDUSTRIES, INC. FN727 Fuel Tank Filler Neck is engineered to provide a precise fit and reliable performance for various vehicle models, including the 2002-2004 Chevrolet Trailblazer, 2002-2004 GMC Envoy, and 2004 Buick Rainier. This fuel filler neck features a 33-inch length and a 1-1/8-inch diameter, accommodating standard fuel tank openings. Designed with a Quick-On cup type, it ensures a secure and leak-resistant connection between the fuel tank and the vehicle's fuel system. Constructed from high-quality materials, the FN727 offers enhanced durability and resistance to corrosion, extending the service life of the component. The dual-coating process applied to the filler neck provides additional protection against environmental factors, reducing the likelihood of rust and deterioration over time. Installation is straightforward, as the FN727 is designed to meet or exceed original equipment specifications, allowing for a direct replacement without the need for modifications. This compatibility ensures minimal downtime and maintains the vehicle's operational efficiency. By choosing the SPECTRA PREMIUM INDUSTRIES, INC. FN727 Fuel Tank Filler Neck, fleet operators can enhance the reliability and longevity of their vehicles' fuel systems, contributing to overall operational efficiency and reducing maintenance costs.