Available for: 2010-2025 Cummins ISX and X15 Engines

Key Benefits

High Nickel Casting
Inconel Exhaust and Intake Valves
Stainless Steel Fire-Ring
Enhanced Airflow and Combustion Chambers
Improved Cooling Passages
Made in the USA

Warranty: 2 Year Unlimited Mileage

PDI Big Boss Cummins ISX/X15 Stage 2 Cylinder heads are meticulously designed to surpass the most demanding expectations, making them the perfect choice for heavy-duty applications in trucking, construction, agriculture, and more.

They exemplify our unwavering dedication to innovation and superior quality.

The Stage 2 Cylinder Heads are built with all Inconel valves, known for their exceptional strength and resistance to extreme temperatures, ensuring unparalleled durability and performance.

Each Stage 2 cylinder head includes a stainless steel fire-ring, offering an extra layer of protection against the rigorous demands of higher horsepower applications.