Diesel Power Source engineers high-performance turbos and exhaust manifolds for the Cummins ISX15 engine used in Class 8 semi-trucks and heavy-duty industrial applications. Built for consistent power under load, these upgrades deliver improved airflow, lower EGTs, and extended turbo life—keeping fleets productive and profitable.
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Every DPS ISX15 performance part is designed to meet the rigorous demands of commercial trucking. Using high-nickel, thick-wall cast materials and CNC precision machining, our components outperform factory parts in both flow and durability. Whether you're maintaining a single rig or managing a fleet, Diesel Power Source offers solutions that boost efficiency, reliability, and performance without compromising emissions compliance.
Owner-operators and fleet managers rely on DPS for reduced downtime, stronger pulling power, and long-term reliability. Our ISX15 components are proven in both vocational and long-haul environments—supporting sustained boost pressure, stable EGTs, and efficient exhaust flow mile after mile.
Explore related categories: ISX15 Exhaust Manifolds, ISX15 Turbo Conversion Kits, and Commercial & Semi Performance Parts.
For smaller engine platforms, view Dodge Cummins Performance or Add-A-Turbo Kits.
Yes. Many Diesel Power Source ISX15 components are designed for emissions-equipped engines. Always verify part specifications and follow federal and local emissions guidelines.
In most cases, yes. Smoother airflow and reduced backpressure help the ISX15 engine burn fuel more efficiently, often improving mileage under load.
No tuning is required for direct-replacement parts. However, if additional fueling or airflow modifications are made, calibration can further optimize performance.
Yes. Our manifolds use thick-wall, high-nickel cast iron and precision CNC machining, significantly reducing cracking and warping common with OEM designs.
Absolutely. Diesel Power Source offers dealer and fleet programs with volume pricing and logistics support for ongoing maintenance needs.
