The Lombardini 3700101 is an original equipment manufacturer (OEM) fuel filter designed to protect critical engine components from contaminants. This genuine filter ensures optimal fuel system performance and extends engine life by providing efficient filtration. It is compatible with a wide range of Lombardini and Kohler diesel engines, including models in the 15LD, 12LD, and FOCS series. With a height of 51 mm and an outer diameter of 45 mm, this filter is engineered for precise fit and reliable operation.