Description

This HX55 Turbocharger 3590044 is engineered as a durable replacement for Cummins ISM, ISME, and M11 diesel engines used in heavy-duty trucks, buses, and industrial applications between 1994 and 2001 . Manufactured to OEM-style specifications, it delivers reliable boost control, efficient airflow, and consistent power output under demanding operating conditions. Built with a precision-balanced rotating assembly , high-flow compressor wheel, and heat-resistant turbine housing, this turbocharger is designed to withstand continuous high exhaust temperatures and heavy load operation. It helps reduce turbo lag, improves throttle response, and supports stable engine performance during long-haul and high-torque applications. Ideal for replacing worn or failed turbochargers, this HX55 unit restores lost horsepower and torque while maintaining engine efficiency and reliability. The direct-fit design allows for straightforward installation, making it suitable for fleet maintenance, repair workshops, and engine rebuild projects. Key Features Compatible with Cummins ISM, ISME, and M11 diesel engines Fits 1994–2001 heavy-duty applications Turbo model HX55 – Part Number 3590044 Replaces OEM references 3536995 and 4039173 Precision-balanced CHRA for smooth operation High-flow compressor wheel for improved airflow Heat-resistant turbine housing for heavy-duty use Restores engine power, torque, and boost pressure Direct replacement fitment, no modification required Frequently Asked Questions Which engines does this HX55 turbocharger fit? This turbocharger fits Cummins ISM, ISME, and M11 diesel engines from 1994 to 2001. What is the turbo model and part number? The turbo model is HX55 with part number 3590044. Which OEM part numbers does this replace? This turbocharger replaces OEM part numbers 3536995 and 4039173. Is this a direct replacement turbocharger? Yes, it is manufactured to OEM-style specifications for direct replacement. Will this turbo restore engine power? Yes, it helps restore boost pressure, horsepower, torque, and throttle response. Is professional installation recommended? Professional installation is recommended to ensure correct fitment and reliable operation.