5.9 Cummins Turbo
5.9 Cummins Turbo Upgrades
S300 and S400 single turbos, compound kits and VGT options for the 1989-2007 Dodge Ram 5.9 Cummins.
Every turbo upgrade that fits the 5.9 Cummins, in one place. Whether you tow heavy and want lower EGTs, you are chasing 600-plus horsepower, or your factory turbo has simply run out of room, this page covers the full range of DPS turbos for 1989-2007 Dodge Ram 2500 and 3500 trucks, across the 12V, 24V and 2003-2007 common-rail engines. Each option is built on the proven BorgWarner S-series or Holset HE-series platform and is matched to your engine year and power goals.
Which 5.9 Cummins Turbo Is Right for You?
Pick your path by how much rear-wheel horsepower (RWHP) you want and how you use the truck:
- Towing and daily driving: A fast-spooling S362 or S363 single turbo improves towing and lowers EGTs. Stock to roughly 525 RWHP.
- Most popular all-around: The S366 single is the most requested 5.9 size, covering 450 to 650 RWHP for street and performance.
- Maximum single-turbo power: The S369 pushes 500 to 750-plus RWHP for performance and competition builds.
- Compound power: A full compound turbo kit supports 600 to 1,200-plus RWHP with both turbos and a manifold included.
5.9 Cummins Single Turbo Upgrades (S300 and S400)
A single turbo upgrade replaces your factory unit with a larger, more efficient DPS turbo built on the BorgWarner S-series platform. It tows better, makes more power and lowers EGTs in a clean, single-turbo package. The S300 family is the most popular path for the 5.9 Cummins:
- S362: Stock to 450 RWHP. One of the most popular configurations, fast-spooling and matched for stock through moderate towing builds.
- S363: 375 to 575 RWHP depending on housing. A strong all-around choice with a bit more headroom.
- S366: 450 to 650 RWHP. The most popular S300 size across every 5.9 generation.
- S369: 500 to 750-plus RWHP. Maximum S300 airflow; a ball bearing CHRA is recommended to offset spool lag from the larger wheel.
Why upgrade from a worked-over stock turbo? The factory turbo is near its ceiling. The largest stock Cummins turbo (the HE351CW on 2004.5-2007 common-rail trucks) tops out around 67 lb/min and supports up to roughly 420 RWHP. The smallest DPS S300, the S362, already outflows it, and the gap widens at the S366 and S369. Earlier trucks use the HX35 or HY35 (1998.5-2002 24V) and the H1C or HX35 on 12V trucks.
- S300 Single Turbos - S362, S363, S366, S369
- S400 Single Turbos - larger frame for higher-power single builds
- Ball Bearing Turbos - faster spool, recommended on larger wheels
Compound Kits, Add-A-Turbo and VGT Options
When a single turbo is not enough, DPS offers compound and variable-geometry paths for the 5.9 Cummins:
- Compound Turbo Kits: A complete twin-turbo system with both turbos, the correct 2nd Gen-style manifold (12V rectangular or 24V round port), piping and hardware included. Supports 600 to 1,200-plus RWHP with no custom fabrication.
- Add-A-Turbo Kits: Keep your existing turbo and add a large atmospheric turbo for compound performance at a lower entry cost.
- Turbonator® VGT Upgrades: A variable-geometry turbo that spools earlier and, in the electronic version, adds exhaust braking. Available for 5.9 Cummins applications in a compound setup.
A high-flow 5.9 Cummins Exhaust Manifold supports the added airflow on higher-power builds.
Related 5.9 Cummins Pages
Not sure which turbo fits your 12V, 24V or common-rail 5.9? Contact DPS to confirm fitment for your truck before ordering. Free shipping on orders over $350.
DPS turbos fit the 5.9 Cummins; DPS is not affiliated with Cummins Inc. Cummins® is a registered trademark of Cummins Inc. DPS does not sell emissions delete components.
