Turbochargers & Related Components for Cummins ISM Engines

The turbocharger is one of the most critical components in the Cummins ISM engine platform. Known for delivering increased horsepower, torque, and fuel efficiency, the turbo system ensures that air is efficiently compressed and delivered into the combustion chambers. This improved airflow allows for more complete fuel combustion, helping the ISM operate at peak performance across marine and industrial applications.

Diesel Pro Power supplies high-quality turbochargers, related systems, and supporting components for Cummins ISM engines, trusted by over 40,000 satisfied customers worldwide. Whether you are replacing a complete turbocharger, servicing seals and gaskets, or upgrading related airflow components, our catalog provides the reliable parts you need to keep your ISM running strong.

Cummins ISM Turbochargers – New Assemblies

A new turbocharger is the most direct way to restore lost power and efficiency in your ISM engine. Over time, turbos wear due to high temperatures, oil contamination, or imbalance of rotating assemblies. When a turbo begins to fail, symptoms may include excessive smoke, loss of power, or increased fuel consumption.

Our new Cummins ISM turbochargers are precision-engineered replacements designed to OEM standards. These units restore boost pressure, improve throttle response, and maximize airflow, ensuring your ISM continues to operate with its designed horsepower and torque output.

Airsep System for Single Turbo ISM Engines

The Airsep System is an advanced air filtration and silencing unit designed for ISM single turbo setups. This system features a 5-inch throat design and incorporates an EverQuiet filter system, which significantly reduces intake noise while maintaining optimal airflow.

For marine applications, where cabin noise can impact comfort, the Airsep is a valuable addition. It not only enhances performance but also extends turbo life by delivering consistently clean, filtered air into the system. The reduced restriction design improves throttle response while preventing harmful contaminants from entering the compressor.

Turbo Mounting Gaskets for ISM

Every turbo installation requires reliable sealing to prevent oil and exhaust leaks. The Cummins ISM turbo mounting gasket ensures a secure connection between the turbocharger and the exhaust manifold or oil supply line.

This gasket is built from high-temperature materials designed to withstand the extreme pressures and heat cycles of turbo operation. Replacing the gasket during every turbo service or installation is strongly recommended to maintain long-term reliability and prevent costly leaks.

High-Temperature Jointing Compounds

For technicians and operators working on Cummins ISM turbos, using a high-temperature jointing compound provides an added layer of security in sealing turbocharger connections. Our high-performance sealant is rated for continuous exposure to extreme operating conditions, withstanding temperatures well above 500°C and surges up to 760°C.

This compound is ideal for exhaust flanges, turbo housings, and other joints subject to high vibration and thermal expansion. By ensuring a gas-tight seal, it protects against exhaust leaks that could otherwise impact turbo efficiency and engine performance.

Hump Hoses & Flexible Connections

Flexible hump hoses are essential for managing the connection between the turbocharger and the charge-air cooler or intake piping. These components absorb vibrations and slight misalignments between rigid piping sections, preventing stress fractures and premature wear.

4-Inch Straight Hump Hose

Designed for Cummins and compatible Detroit Diesel applications, this hose features a 4-inch upper and lower diameter with reinforced flexibility to accommodate vibration. It is commonly used in ISM turbo installations where durability and long-term resistance to heat are required.

5.5-Inch to 5-Inch Reduction Hump Hose

This reducer-style hump hose transitions between two different pipe diameters, ensuring proper fitment when connecting aftermarket or OEM turbo setups. Like the straight hose, it is built from high-strength, heat-resistant material designed to withstand the elevated temperatures of pressurized air systems.

Why Maintaining the Turbo System is Critical for Cummins ISM Engines

The ISM engine is widely used in heavy-duty marine and industrial environments where reliability is paramount. A compromised turbo system can result in performance losses, increased fuel costs, and potential long-term damage.

Key reasons to prioritize turbo maintenance:

• Fuel Efficiency – A healthy turbo ensures complete combustion, reducing wasted fuel.

• Extended Engine Life – Proper airflow prevents excessive soot buildup and cylinder wear.

• Consistent Power Output – Replacing a failing turbo restores original horsepower ratings.

• Lower Emissions – A functioning turbo system keeps the ISM compliant with environmental standards.