The MANN-FILTER C3665 is a high-quality air filter element designed to provide superior engine protection by effectively filtering dust and contaminants. This genuine MANN-FILTER part ensures optimal airflow and extends engine life in demanding agricultural and construction applications. With an outer diameter of 365 mm, an inner diameter of 220 mm, and a height of 51 mm, it is engineered for precise fitment and reliable performance across various machinery models from brands like CLAAS, DEUTZ-FAHR, FENDT, John Deere, Massey Ferguson, New Holland, and Valtra.