The Spectra Premium Industries, Inc. FN645 Fuel Filler Neck is a high-quality replacement component designed to ensure a secure and efficient fuel delivery system for your vehicle. Manufactured with precision, this fuel filler neck measures 24 inches in length and 1.5 inches in diameter, making it suitable for various diesel fuel applications. Constructed from durable steel, it offers enhanced strength and resistance to corrosion, ensuring longevity and reliable performance under demanding conditions. The FN645 is engineered to meet or exceed original equipment specifications, providing an exact fit for seamless installation. Its dual coating enhances corrosion protection, extending the service life of the component. The unit is leak-tested after production to ensure it is free from fuel and evaporative leaks, maintaining the integrity of the fuel system. Designed with a quick-on cup type and a vent with a 0.75-inch inside diameter, it facilitates efficient fuel flow and minimizes the risk of vapor lock. The FN645 is compatible with diesel fuel types, making it an ideal choice for diesel-powered vehicles. Its precise engineering and high-quality materials contribute to the overall efficiency and safety of the vehicle's fuel system, reducing the likelihood of fuel-related issues and maintenance costs. By choosing the Spectra Premium Industries, Inc. FN645 Fuel Filler Neck, fleet operators can ensure their vehicles maintain optimal fuel delivery performance, leading to improved operational efficiency and reduced downtime.