This Spree Powersport Products air filter is designed to be a compatible replacement for Yamaha Generator models EF1600, EF2400, EF2600, and EF2800. The package includes not only the air filter but also a high-quality NGK BPR4ES Spark Plug, providing you with two essential components for your generator's maintenance. This product is proudly made in the USA, ensuring you receive a top-notch quality item. The air filter replacement part number is 7NJ-14451-00-00 or 7CN-E4451-00-00. With the specified gap size of 0.031 inches, this spark plug is ready to fit seamlessly into your Yamaha generator. Trust this Spree Powersport Products spark plug and air filter to keep your generator running smoothly and efficiently.