Keeping your Yamaha Rhino running strong means keeping its engine breathing clean air. This HIFROM kit is an affordable, high-quality replacement for the stock air filter, and they even throw in a spark plug! It's a dual-stage foam filter, which means it does a great job trapping dirt, dust, and debris before they can get into your carburetor and engine. A clean filter improves airflow and can help your engine run smoother and last longer. This filter is designed to fit specific Yamaha Rhino models: the 660 from 2004-2007 and the 450 from 2006-2009. It replaces OEM part numbers 5UG-E4451-00-00, AFR-2009-00, and 95284. The filter itself measures about 8.2 inches tall with an outside diameter of 3.7 inches. The kit includes one air filter and one spark plug. Remember, this is an aftermarket part (not made by Yamaha), but it's built to meet or exceed the original specs. We recommend checking your air filter regularly and replacing it about every 3 months if you ride in dusty conditions. A dirty filter can really sap your engine's power. HIFROM stands behind their products with a 3-month warranty and good customer support. A simple maintenance item that makes a big difference for your UTV's performance and longevity.