Product Description
Turn your 03–07 5.9L Cummins into a fast-spooling, hard-pulling street/track truck with the Industrial Injection S300 SX-E 66/74 single turbo kit (.91 A/R). This center-mount, 2nd-gen-style setup uses BorgWarner’s proven SX-E charger with upgraded thrust bearing and FMW (forged milled) compressor wheel for durability and airflow under sustained boost. Complete, clean install with high-flow HX40 downpipe and all the right hardware.
Fitment
- 2003–2007 Dodge Ram 2500/3500 with 5.9L Cummins (24V CR)
Key Specs
- S300 SX-E 66/74 single turbo (.91 A/R turbine housing)
- Center-mount on a high-flow T4, 2nd-gen-style manifold layout
- Includes high-flow HX40 downpipe
- Designed to lower EGTs and improve overall airflow on built 5.9L applications
What’s Included
- BorgWarner S300 SX-E 66/74 turbocharger with .91 A/R turbine housing
- 2nd-gen-style, T4 center-mount hardware & install components
- High-flow HX40 downpipe
- Lines, clamps, and associated hardware as supplied by Industrial Injection
Recommended Parts (CPP internal links)
- ARP 247-4202 Head Stud Kit (98.5–07 5.9L/6.7L) — keeps the head sealed when boost goes up.
- Industrial Injection AC-0001 A/C Reroute Line (03–07) — helpful clearance for 2nd-gen style swaps.
- 03–07 Fuel System Components — lift pumps, CP3, rails/sensors to feed the charger properly.
- 2nd Gen Swap Kits & Accessories (03–07) — filters, boots, piping, and add-ons for your swap.
Helpful Notes
- Custom ECM tuning is strongly recommended to optimize spool, smoke control, and EGTs.
- Match injector size and lift pump capacity to your power goals.
- Competition-use only; purchaser is responsible for emissions compliance.
FAQ
Will the .91 A/R turbine housing spool on a daily driver?On a healthy 5.9L with proper tuning and fuel supply, the .91 A/R housing offers quick street manners while supporting significant top-end flow. Injector and turbine housing selection should be matched to intended power and use.
Is this a complete “2nd-gen swap” style kit?Yes—this is a complete single-turbo swap kit centered around an S300 SX-E with 2nd-gen-style, T4 center-mount hardware and a high-flow HX40 downpipe for a clean install.
Do I need head studs?For elevated boost and hard use, head studs are highly recommended to maintain sealing and reliability.
Is this legal for highway use?No. Industrial Injection identifies these components for closed-course competition only. End-user is responsible for all local, state, and federal compliance.
Warranty: 1-Year manufacturer warranty.
