Product Description
Center-mount S300 power for your 3rd-gen Cummins. The INDUSTRIAL INJECTION 227447 S300 SX-E 64/74 Single Turbo Kit (.91 A/R) places a proven BorgWarner S300 SX-E on a high-flow T4 3-piece manifold in a 2nd-gen style layout for lower EGT, strong midrange, and room to grow.
Fitment
- 2003–2007 Dodge Ram 2500/3500 with 5.9L Cummins (common-rail)
- Direct 2nd-gen style center-mount conversion for 3rd-gen trucks
What’s Included
- BorgWarner S300 SX-E 64/74 turbocharger (.91 A/R)
- T4 3-piece exhaust manifold (center mount, 2nd-gen style)
- Cold-air intake assembly
- Passenger-side intercooler pipe
- High-flow HX40-style downpipe
- Compressor outlet elbow
- Oil feed & drain lines, clamps, gaskets, and install hardware
Key Features
- Forged Milled Wheel (FMW) SX-E with upgraded 360° thrust bearing for durability
- Efficient 64mm compressor / 74mm turbine for street/tow + weekend fun
- Center-mount manifold improves drive pressure balance and service space
- Complete, matched kit for clean install on 03–07 5.9L Cummins
Recommended Parts (CPP Internal Links)
- Industrial Injection AC-0001 A/C Reroute Line (03–07 5.9L) — clears charge pipes in 2nd-gen swaps
- CPP DIY -10AN Turbo Drain Kit — tidy, high-flow return
- Cummins Turbochargers & Accessories — clamps, blankets, studs, and more
- 03–07 Cummins Turbo Category — browse S300 singles & hardware
Cross-Reference / Alternatives
- Industrial Injection 227445 — 64/68 — 1.0 A/R (quicker spool, smaller turbine)
- Looking for the 64/74 with 1.0 A/R? See part 227448 in the 03–07 turbo category.
Helpful Notes
- This is a 2nd-gen style conversion; verify downpipe/exhaust connection and intercooler pipe routing.
- Plan for A/C line reroute and adequate heat shielding near charge pipes.
- Tuning and fueling upgrades may be required to fully realize performance.
FAQ
What power range is the 64/74 .91 A/R best for?It’s a versatile street/tow turbo that can support significant power with proper fueling, while keeping EGTs in check compared with stock.
Is this a true bolt-on for my 2003–2007 5.9L?
Yes—this kit is designed specifically for 03–07 5.9L trucks as a 2nd-gen style center-mount conversion and includes the manifold, piping, downpipe, and lines to fit the platform.
Will I need an A/C reroute line?
Typically yes. Larger turbo/pipe routing benefits from the AC-0001 reroute to maintain clearance and serviceability.
What’s the difference between .91 and 1.0 A/R housings?
The .91 A/R generally spools a touch quicker and helps response, while the 1.0 A/R favors top-end flow on hotter builds. Choose based on use and fueling.
