Commercial-Grade 15-Liter Power for Heavy-Duty Applications
ISX15 Cummins conversion kits provide the turbo systems, exhaust manifolds, and mounting hardware needed to upgrade or swap ISX15 engines into medium-duty trucks, commercial applications, and custom builds.
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The ISX15 (15-liter) platform delivers 400-600+ HP and massive torque for severe-duty towing, commercial hauling, motorhomes, and industrial applications where smaller Cummins engines aren't sufficient.
Massive displacement for extreme torque and towing
Built for Class 6-8 trucks and severe service
Turbo, manifold, and mounting solutions for conversions
Power range for commercial and extreme towing needs
Common Applications: Medium-duty commercial trucks, motorhome conversions, heavy equipment haulers, industrial power units, custom heavy-duty builds requiring 15-liter displacement.
The factory turbo system can become a restriction as load, tuning, or duty cycle increases. Upgrading the turbo system improves boost efficiency, lowers exhaust gas temperatures, and supports sustained power under heavy load. ISX15 and X15 turbo upgrades are commonly chosen for performance builds, heavy towing, high-load vocational trucks, and long-haul applications that demand reliability.
Yes. Properly sized turbo and exhaust upgrades for ISX15 and X15 engines are designed for continuous duty cycles, heavy towing, and high gross weight operation. Improved airflow and reduced drive pressure help the engine run cooler and more efficiently, especially during long pulls, high boost conditions, and extended operating hours.
