The Spectra Premium Industries, Inc. FN860 Fuel Tank Filler Neck is engineered to provide a precise fit and reliable performance, ensuring seamless integration into your vehicle's fuel system. Designed with a 1.5" inside diameter, this steel fuel tank filler neck facilitates efficient fuel flow and minimizes the risk of fuel spillage during refueling operations. Constructed from high-quality steel, it offers enhanced durability and resistance to corrosion, extending the service life of your vehicle's fuel system components. The FN860 is rigorously tested to meet or exceed original equipment specifications, ensuring optimal functionality and safety. Its design includes a vent line attachment, which aids in maintaining proper fuel tank pressure and reduces the likelihood of fuel vapor emissions, contributing to environmental compliance. The unit is also leak-tested after production to ensure it is free from fuel and evaporative leaks, providing peace of mind and operational reliability. This fuel tank filler neck is compatible with diesel fuel types, making it suitable for a range of heavy-duty applications. Its straightforward design allows for easy installation, minimizing downtime and labor costs during replacement. By choosing the FN860, fleet operators can ensure consistent fuel delivery performance, reduce maintenance intervals, and enhance the overall efficiency of their vehicle operations.