The Suction Fan Adapter connects the suction fan and engine block, ensuring proper airflow to the radiator unit, it can withstand vibration and maintain a stable position for the fan during its function. The adapter is specially designed to incorporate various mounting holes for various-sized fan fastening with the engine block, which is crucial for optimal engine performance and longevity.Attributes: • Ensures proper airflow and controlled intake of fresh air• For use with a 40''suction fan• Made up of gray iron casting for its strength and durabilityApplication: This Suction Fan Adapter connects the suction fan to the engine.