Description
DPS | Ball Bearing Turbo for Dodge Cummins 1988 – 2007 -Dual Ceramic
The Diesel Power Source® Dual Ball Bearing Turbo is engineered for fast spool-up, strong midrange torque, and dependable power on 1989-2007 Dodge Ram 5.9L Cummins trucks.
Unlike factory journal bearing turbos, this unit uses a dual ceramic ball bearing center section to reduce rotational friction. The result is quicker boost response, reduced EGTs, and more efficient airflow across the RPM range.
Pair it with the optional Turbonator® VGT upgrade for the fastest-spooling, highest-efficiency single turbo configuration available for the 5.9 Cummins platform.
Available in five sizes from Stage 2.5 (420 max HP) to Stage 9.5 (775 max HP). Select your year and turbo size at checkout. Optional Turbonator® VGT turbine housing upgrades are available with or without exhaust braking.
Direct factory replacement. This turbo bolts directly onto 1989–2007 5.9L Cummins trucks. 2002 and older models require a downpipe.
Compound turbo users: If ordering for use in a compound turbo setup, notify us at time of ordering. The wastegate must be converted to a spring gate before shipment.
The Turbonator® VGT is a patented, patent-pending variable geometry turbine housing system developed exclusively by Diesel Power Source®.
It operates differently from OEM Cummins and Holset VGT systems and has been validated through real-world use and CFD flow modeling.
When combined with the dual ceramic ball bearing center section, spool-up and airflow efficiency significantly outperform conventional turbo designs. DPS S366-based configurations spool nearly as fast as stock while flowing nearly double the air volume.
Option 1 — 3-Stage Mechanical VGT Actuator
Uses a 3-stage mechanical actuator to continuously optimize the turbine A/R ratio across the full RPM range.
- Improves spool-up by approximately 200–300 RPM vs. non-VGT
- Increases overall turbo efficiency and output
- Compatible with all 1989–2007 5.9L Cummins model years
- No electronics or ECM tuning required
Option 2 — Electronic VGT with Exhaust Brake
Adds an integrated exhaust brake with self-contained electronics. No ECM tuning is required.
- Improves spool-up by approximately 200–300 RPM vs. non-VGT
- Adds exhaust braking on all model years, including 12V engines
- Self-contained electronics — no additional wiring harness required
- Compatible with 12V, 24V, and Common Rail Cummins
Spool-up note: Either VGT option typically improves spool-up by approximately 200 RPM compared to the base non-VGT configuration on the same turbo size.
Base Option — Non-VGT (Wastegated)
All configurations include a wastegated turbine housing as standard. This is a proven, reliable setup suited for daily driving and moderate performance builds that do not require exhaust braking.
Every DPS Dual Ball Bearing Turbo is built with performance-focused components designed to outperform both factory and aftermarket journal bearing alternatives.
Center Section
- Dual ceramic ball bearing center section for faster response and extended bearing life
- Significantly reduced rotational friction vs. journal bearing designs
- Faster spool than comparable fixed-geometry turbos
Compressor Side
- FMW billet compressor wheel with extended tips for improved airflow and efficiency
- DPS race compressor housing flows approximately 9% more air than stock
- Multiple intake and outlet barbs to prevent boost hose blow-off
Turbine Side
- Wastegated turbine housing standard on all configurations
- Optional Turbonator® VGT turbine housing upgrade available (see VGT tab)
Performance Gains
- Reduces EGTs by approximately 10–15% vs. factory turbo
- Typical horsepower gains of 10–18% rwhp depending on tune and supporting mods
- Improved throttle response and drivability across the RPM range
- Potential fuel mileage improvement alongside power gains
Installation
- Direct factory replacement – bolt-on fitment for 1989-2007 5.9L Cummins
- T3 flange standard (T4 available with VGT option at additional cost)
- Can also be used as the high-pressure turbo in a compound turbo system
