2003–2007 Cummins 5.9L Turbochargers (Stock & Performance)

CPP Diesel supplies a full range of turbochargers for 2003–2007 Dodge Ram Cummins 5.9L common rail engines. We offer OEM Holset HE341 and HE351 replacements, high-performance S300 and S400 upgrades, and complete compound turbo kits for serious horsepower.

Whether your goal is towing efficiency, street performance, or competitive sled pulling, we have turbos to match your needs. All units are built for durability and performance, with optional installation hardware and accessories.

Frequently Asked Questions

Which turbo came stock on 2003–2007 Cummins trucks?

2003–2004 models typically came with the Holset HE341 turbo, while 2004.5–2007 models often used the Holset HE351. Both are reliable factory turbos with good spool characteristics.

What’s the best performance turbo for a common rail 5.9?

The S300 is a popular upgrade for improved airflow and spool without sacrificing drivability. For maximum performance, S400 turbos or compound setups are ideal.

Do you sell compound turbo kits for this generation?

Yes—we carry complete compound kits designed for 2003–2007 Cummins, including plumbing, intercooler piping, and hardware.

Will a turbo upgrade help with towing?

Yes—performance turbos can lower EGTs and improve efficiency under heavy loads, making them an excellent choice for tow rigs.

Do you carry installation parts?

Absolutely. From gaskets to oil feed and drain lines, we stock everything needed for a proper turbo install.

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