Product Description
Wake up your 5.9L Cummins with a proven 2nd-Gen style S300 upgrade. The INDUSTRIAL INJECTION 227435 kit centers a BorgWarner S300 SX-E 62/74 with a .91 A/R on a high-flow T4 layout to deliver quick spool, strong mid-range, and headroom for tuned daily drivers and work trucks. SX-E units feature a forged milled compressor wheel and 360° thrust bearing for durability under heat and boost.
Fitment
- 2003–2007 Dodge Ram 5.9L Cummins (24-valve common rail)
- 2nd-Gen style T4 center-mount conversion for 03–07 trucks
What’s Included*
- BorgWarner S300 SX-E 62/74 turbocharger, .91 A/R turbine housing
- High-flow T4 2nd-Gen style manifold
- Cold-air intake tubing and filter, compressor outlet elbow
- Passenger-side intercooler pipe
- HX40-style downpipe
- Oil feed & drain lines, gaskets, clamps, and mounting hardware
*Exact contents may vary by batch; see product images/specs and contact us with questions.
Recommended Parts (CPP internal links)
- ARP 247-4202 Head Stud Kit — 5.9L/6.7L Cummins
- Cummins 4935577 OEM Turbo Oil Feed Line (03–18) or our CPP -4AN Oil Feed Line
- Exhaust/Turbo Mounting Hardware & Studs
- Industrial Injection HX40 Downpipe & Clamp (03–04)
- 03–07 Fuel System & Lift Pumps (CP3, injectors, filtration)
- High-Flow T4 Exhaust Manifold (upgrade/replace)
Why This Kit
- Balanced street power: 62mm SX-E compressor for fast response with strong towing & daily drivability
- Stronger core: SX-E 360° thrust bearing + FMW wheel for reliability
- Clean install: 2nd-Gen style center-mount layout with matched piping and hardware
Helpful Notes
- Custom tuning and adequate lift-pump supply are recommended for best results.
- Check wastegate/drive pressure and EGTs after installation; re-torque hardware per spec.
FAQ
How does a 2nd-Gen style kit help spool?Center-mounting the turbo on a T4 manifold improves exhaust flow and pulse energy to the turbine, helping spool and mid-range response versus the stock offset layout.
What power range is a 62/74 .91 A/R good for?It’s a great all-around choice for tuned daily driving and towing on 03–07 5.9L trucks, offering quick response with room to grow when paired with proper fuel and tuning.
Do I need head studs?They’re strongly recommended once boost and cylinder pressure rise with tuning or larger injectors, to help keep head gaskets sealed.
Is an HX40 downpipe required?Yes—this kit uses an HX40-style outlet. We stock downpipes and clamps for an OE-like fit.
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