Industrial Injection 227456K Cummins 3rd Gen 5.9L Compound Turbo Kit 2003-2007

The Industrial Injection 227456K is a complete compound turbo kit engineered for the 3rd Generation Cummins 5.9L diesel engine found in 2003–2007 Ram pickups. Compound turbocharging — also known as a "twin turbo" or "series turbo" setup — uses a large primary (drive) turbocharger and a smaller secondary (driven) turbocharger working in sequence to dramatically increase air density, boost pressure, and overall power potential while maintaining strong low-end throttle response.

Industrial Injection is a well-known aftermarket performance and remanufacturing company specializing in diesel fuel systems and forced induction. Their compound turbo kits are designed to be a complete bolt-on solution, providing the hardware and plumbing needed to convert the factory single-turbo system into a high-performance compound setup without extensive custom fabrication.

Key Features:

• Compound (series) turbocharger configuration for maximum boost and power
• Designed specifically for the 3rd Gen Cummins 5.9L 24-valve diesel engine (2003–2007)
• Dramatically improves air delivery, intercooler efficiency, and overall power output
• Supports significantly higher horsepower and torque levels compared to a single turbo setup
• Reduces turbo lag by utilizing a smaller primary turbo to spool quickly before the larger secondary unit comes online
• Complete kit includes necessary turbo components and hardware for installation
• Engineered and assembled by Industrial Injection — a trusted name in diesel performance

Compound turbo systems are a popular upgrade for 5.9L Cummins owners seeking serious power gains for towing, sled pulling, or street/strip performance. The Industrial Injection 227456K delivers a factory-fit compound solution for the 3rd Gen platform without the guesswork of custom-sourcing individual components.