2003-2007 Cummins S475 Turbo Swap Kit (227426)

The Industrial Injection S475 Turbo Swap Kit converts the 2003-2007 5.9L Common Rail Cummins to a 2nd-gen-style single S475 setup. The S475 is an S400-frame turbo built for owners chasing big numbers on a still-buildable platform, from mild-aggressive street to full race.

The kit ships as a complete bolt-on swap — turbo, custom S&B-designed intake, mounting hardware, gaskets, and clamps — and gives you the choice of .90, 1.00, 1.10, or 1.25 T4 turbine housings to match how you'll drive the truck.

• Industrial Injection S475 single-turbo conversion
• 2nd-gen-style mount
• V-banded race compressor cover
• 75mm compressor wheel
• 83/74mm turbine wheel
• T4 turbine housing options: .90, 1.00, 1.10, 1.25
• 90 lb/min rated airflow
• Custom S&B-designed intake
• Complete install kit — hardware, gaskets, clamps
• Lower EGTs vs. stock turbo
• Mild-to-race performance range
• Part Number: 227426

• Injector upgrades are recommended.
• Industrial Injection performance products are for closed-circuit competition vehicles only — not legal for on-road, off-road, or dual use.