The Fleetguard AF1658K is a high-quality primary air filter designed to provide excellent protection for heavy-duty diesel engines. This genuine Fleetguard filter ensures optimal airflow while effectively capturing contaminants, extending engine life and maintaining performance. With an overall height of 350.52 mm, a largest outer diameter of 260.35 mm, and an inner diameter of 140.46 mm, it is engineered for precise fit and reliable filtration. It cross-references with multiple OEM part numbers including Cummins 3904944, Case IH 196144A1, and John Deere AT175355.