The product is a genuine Kawasaki air filter with the manufacturer part number 11013-1290, designed specifically for Kawasaki Mule models. This OEM air filter is made to fit and function like the original filter, ensuring optimal performance and air filtration for the vehicle. It is a crucial part of the ATV's air intake system, helping to keep the engine running smoothly by trapping dirt and debris before they can enter the engine. The Kawasaki 11013-1290 air filter is a reliable choice for Mule owners looking to maintain the quality and efficiency of their vehicle's engine.