New BorgWarner turbocharger for Detroit Diesel Series 60 12.7L engines delivering reliable performance improved efficiency 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 Air Ratio 1.31 to 1.32 261 to 550 HP Before replacing any turbocharger ensure the original cause of failure has been identified and corrected to prevent repeat failure