ENGINE · 1998-2007
Cummins 5.9 24v tuning
Dodge / Ram 5.9L Cummins ISB 24v inline-6 diesel. I6 diesel turbo (common rail post-2003), 5.9 L, 235-325 HP stock. Cars: Dodge Ram 2500 / 3500 1998-2007 (24v), Ram Heavy Duty.
Engine specs
| Engine code | Cummins 5.9 24v |
|---|---|
| Configuration | I6 diesel turbo (common rail post-2003) |
| Displacement | 5.9 L |
| Production years | 1998-2007 |
| Stock power | 235-325 HP |
| ECU family | Bosch EDC15 (pre-2003 P-pump) / Cummins CM849 (CR variants) → |
Tuning stages on Cummins 5.9 24v
| Stage 1 | +60-100 HP / +200-300 lb-ft (Smarty / EZ Lynk) |
|---|---|
| Stage 2 | +120-180 HP (S364SXE turbo + injectors + tune) |
| Stage 3 | +250+ HP (compounds, big single, head studs) |
Conservative real-world estimates. Actual results depend on hardware health, fuel quality, ambient temperature, and the specific calibration written.
Services available on Cummins 5.9 24v
Common DTC codes on Cummins 5.9 24v
Brands running Cummins 5.9 24v
Workshop workflow
- Read the Cummins 5.9 24v ECU via OBD or bench using your existing flasher (KESS3, AutoTuner, MPPS, Trasdata, FRF).
- Open Softechpro V5 and drag the .bin / .ori / .hex / .s19 / .frf onto the workspace. The Bosch EDC15 (pre-2003 P-pump) variant is auto-detected.
- Pick the service tab and apply Stage 1 / 2 / 3 / DPF OFF / EGR OFF / AdBlue OFF as required.
- Save patched .bin — the TPROT + multi-block CRC32 is recomputed automatically.
- Flash via your existing flasher. Adaptation reset via OEM scan tool if required.