Available for: Cummins ISX and X15 Engines

Key Features: 

• New, Not Remanufactured: Our crankshafts are brand new, offering superior durability and performance compared to remanufactured alternatives.
• Precision Casting and Machining: Each crankshaft is forged and machined to ensure perfect fitment and optimal operation, reducing wear and extending the lifespan of your engine.
• Big Boss Quality: Trusted by professionals, our Big Boss Crankshafts are designed to withstand the toughest conditions, delivering consistent performance day in and day out.
• Computer‑Balanced: Each crankshaft is dynamically balanced to OE specs, ensuring smoother operation, reduced vibration, and longer bearing life.

Warranty: 1 Year Unlimited Mile Warranty

PDI crankshafts provide peace of mind and assurance that your engine will operate at its best for the long haul. Invest in quality, and keep your engine running smoothly with our top-tier Big Boss products.

Upgrade your engine components today and experience the difference that professional-grade parts can make.

OEM Cross Reference

4925762, 4393462