The KOHLER GM32404 Original Air Filter - Crankcase Emission Canister (Use 421133) is a top-quality marine generator component designed to ensure optimal performance and efficiency. This air filter is specifically engineered to fit Kohler generators and is an essential part of the crankcase emission system. It effectively filters out impurities and contaminants from the air, preventing them from entering the engine and causing damage. The original design and construction of this air filter guarantee a perfect fit and seamless integration with the generator system. It is recommended to replace the air filter regularly to maintain the generator's performance and prolong its lifespan. Trust the KOHLER GM32404 Original Air Filter - Crankcase Emission Canister (Use 421133) for reliable and efficient operation of your marine generator.