New BorgWarner turbocharger for Caterpillar 3406 engines delivering reliable performance improved airflow and durability Built to OEM specifications for proper fit and long service life in heavy duty applications. This turbocharger is designed to restore OE performance efficiency and reliability. Built to OEM specifications it ensures proper fitment airflow and long service life. Application Notes 372 to 500 HP Before replacing any turbocharger ensure the original cause of failure has been identified and corrected to prevent repeat failure