Product Description
S&S Diesel 305-20SAC-R-SET 20% Over Early 5.9 Injector (Reman) — Set of 6 — 2003–2004 Dodge Ram Cummins 5.9L 24V
Step up drivability and reliable fueling on your early common-rail 5.9L. This S&S reman set uses SAC nozzles and tight flow-matching to deliver ~20% over stock while maintaining clean atomization and consistent cylinder-to-cylinder balance. Built to OE-level processes and validated on industry-standard equipment, then matched as a complete set of six for your 2003–2004 Ram 2500/3500.
Fitment
- 2003–2004 Dodge Ram 2500/3500 — 5.9L Cummins 24-valve (early common-rail)
- Direct replacement for early 5.9 CR injector style (03–04 “early”)
What’s Included
- (6) Remanufactured S&S injectors — 20% over stock (SAC nozzle)
- Flow-matched set (tight variance) for balanced fueling
- Install-ready with new sealing washers & O-rings (where applicable)
- Core return required (typical industry practice; see cart/core terms)
Why Buy from CPP Diesel
- Only vetted brands (S&S, Bosch, Exergy, BD, etc.) curated for 03–07 Cummins
- Real diesel expertise and fast shipping from our U.S. warehouse
- Clean, compatibility-checked listings to avoid guesswork
Recommended Parts
- 03–04 Cummins Injectors (Category)
- 5.9L Cummins CR Injectors (All)
- 03–07 Cummins Fuel System & Components
- Injector Install Kit — 2003–2005 5.9L CR
Helpful Notes
- “Early” 5.9 CR refers to 2003–2004 style injectors; 2004.5–2007 use “late” style.
- Lift pump health, clean filtration, and good connector tubes/lines are crucial for injector longevity.
- After install, perform proper injector relearn/adaptation procedures per service manual or tuning suite.
FAQ
Is this a direct fit for my 2003–2004 5.9L Cummins?Yes. This set is built for the early 5.9L CR (2003–2004) injector architecture found in Ram 2500/3500.
Do these use SAC nozzles and come flow-matched?Yes. S&S early 5.9 injectors utilize SAC nozzles and are matched as a set to tight tolerances for consistent fueling.
How much over stock are they?~20% over stock fueling, ideal for a responsive street/tow setup when paired with healthy CP3 supply and filtration.
Do I need tuning?Many 20% sets run well on clean factory calibrations, but verification with your tuner is recommended for best results (especially if you have other mods).
