Industrial Injection 227432 SX-E Single Turbo Kit Cummins A/R - S300 62/68 5.9L 91

The Industrial Injection 227432 is a complete S300 SX-E 62/68 Single Turbo Kit engineered for the 5.9L Cummins diesel engine. This kit centers the turbo on the cylinder head in a 2nd gen-style mounting configuration, correcting the factory offset design that places the turbo over cylinders four and five and restricts airflow to the front cylinders. By repositioning the turbo to the center of the head — between cylinders three and four — this kit delivers more balanced and efficient airflow across all cylinders.

At the heart of this kit is the BorgWarner S300 SX-E turbocharger, a purpose-built diesel performance turbo that delivers substantially more airflow and faster spool-up compared to standard S300 turbos. The SX-E series eliminates the need for heavy modification of traditional S300 or S400 frames, offering a refined, factory-engineered performance solution right out of the box.

Key Features:

• 62mm compressor / 68mm turbine wheel configuration with .91 A/R turbine housing
• High-flow T4 manifold with 2nd gen-style center-mount positioning
• Upgraded 360-degree thrust bearing for enhanced durability under high boost
• FMW (Forged Milled Wheel) compressor wheel for maximum flow and reliability
• Purpose-built SX-E design delivers greater airflow and quicker spool-up vs. non-SX-E turbos
• Bolt-on installation — complete kit ready for direct installation
• Multiple turbo size and A/R ratio options available across the 227432 product family

Upgrading from the stock turbocharger increases overall power output, broadens the powerband, and reduces Exhaust Gas Temperatures (EGTs) — critical benefits for tuned or modified diesel engines. This kit is well-suited for street performance, towing, and competition builds.

Competition Use Notice: All Industrial Injection performance products are intended for closed-circuit competition use only. Compliance with applicable federal and state emissions regulations is the sole responsibility of the end user.