Cummins ISX15 Diesel
15 L Heavy-Duty Powerhouse
Power: 400 – 600 HP | Torque: 1,450 – 2,050 lb-ft
Displacement: 15.0 L inline-6 | Emissions: EPA compliant with EGR, DPF & SCR
Engineered to replace the legendary N14, the Cummins ISX15 delivers unbeatable horsepower and SmartTorque™ fuel efficiency for Class 8 tractors, vocational haulers, buses, and industrial rigs. Key tech includes a high-pressure common-rail fuel system, variable geometry turbo, and integrated aftertreatment that slashes NOx and particulate emissions while boosting MPG.
Why Fleets Choose the ISX15
- Massive Torque Plateau — up to 2,050 lb-ft for effortless hill climbs and fewer shifts.
- SmartTorque & SCR — electronic torque management + selective catalytic reduction = lower diesel spend and cleaner exhaust.
- Proven Durability — robust block, forged internals, and long service intervals keep uptime high and maintenance costs low.
ISX15 Engines & Parts In Stock Now
Boots & Hanks Truck Parts carries:
- Dyno-tested Cummins ISX15 complete engines
- Reman long blocks, cylinder heads, and crank kits
- Turbos, injectors, ECMs, DPF/SCR components, and full overhaul kits
Every unit is compression-tested, warrantied, and ready for same-day worldwide shipping. Power your fleet with Cummins’ flagship 15-liter diesel.
Call 800-738-7802 or browse live inventory at BootsAndHanksTruckParts.com today.
