New turbocharger for Caterpillar C15 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. Low Pressure Turbo requires matching High Pressure Turbo for proper operation Before replacing any turbocharger ensure the original cause of failure has been identified and corrected to prevent repeat failure