Product Description
Make big, clean power on your 03–07 5.9L Cummins with the INDUSTRIAL INJECTION S475 2nd-gen turbo swap kit (1.00 A/R). Designed for all-out performance, this complete kit centers an S475 on a high-flow 2nd-gen style setup with a custom S&B intake for efficient airflow, strong top-end, and lower EGT under load.
Fitment
- 2003–2007 Dodge Ram 2500/3500 5.9L Cummins (common-rail)
- Direct 2nd-gen style swap for 3rd-gen trucks (03–07)
What’s Included
- S475 turbocharger with 75mm compressor, 83/74mm turbine, 1.00 A/R turbine housing
- Custom S&B-designed intake and couplers
- Complete install kit (brackets, clamps, hardware, and model-specific components per Industrial Injection)
Key Features
- Track-proven performance with strong top-end airflow
- Helps lower EGTs under load
- V-banded race cover for robust, leak-free connections
- Injector upgrades required for proper spool and power
- Competition-use only
Recommended Parts (CPP internal links only)
- T4 3-Piece Exhaust Manifold (DPS) — high-flow support for the S400 frame
- CPP -4AN Turbo Oil Feed Line — reliable oil supply to S400
- Fleece S3/S4 2nd-Gen Oil Feed Line — 2nd-gen location specific
- Industrial Injection AC-0001 A/C Reroute Line (03–07) — additional clearance for big chargers
- 03–07 Downpipes (Category) — pair your kit with the correct S400 downpipe
- 03–07 Fuel System (Category) — lift pump, CP3, rails, big-line kits
- 5.9L CR Injectors (Category) — required upgrade for this turbo size
Cross-Reference / Alternatives
- S475 Turbo Swap Kit — .90 A/R (quicker spool)
- S475 Turbo Swap Kit — 1.10 A/R (more top-end)
- See All 2nd-Gen Swap Options (03–07)
Helpful Notes
- Tuning and injectors are required to achieve proper spool and driveability.
- Support mods recommended: lift pump, high-flow manifold, and appropriate downpipe.
- For competition/off-road use only.
FAQ
How does 1.00 A/R compare to .90 or 1.10?The 1.00 A/R balances spool and top-end. A .90 A/R typically spools quicker with slightly higher drive pressure; a 1.10 A/R favors more top-end flow with later spool. Choose based on gearing, weight, and intended RPM range.
What injector size works well with an S475?Because this is a large single, plan for upgraded common-rail injectors matched to your power goal and tuning. Many builds pair this turbo with performance injectors and a healthy CP3/lift pump for consistent rail pressure.
Do I need a T4 manifold?Yes—this 2nd-gen style swap centers the charger on a high-flow T4 manifold for improved exhaust energy and serviceability.
Is any A/C modification required?Larger chargers and intake tubing can crowd the factory hard line. An A/C reroute line simplifies clearance on many installs.
