Upgrade your 2003–2004 Dodge 5.9L Cummins (Early Common Rail) with a brand new injector set from Dynomite Diesel, available in multiple flow rates to match your build goals.

Designed specifically for early common rail applications, each injector set is balanced and matched to ensure consistent cylinder fueling, smooth drivability, and scalable performance when paired with proper supporting modifications and custom calibration.

Whether you're building a responsive daily driver, a strong street truck, or a dedicated competition setup, there’s an injector size designed for your application.

🔥 Available Flow Rates

15% Over
Ideal for tuned stock turbo applications and mild performance builds.

30% Over
Great option for lightly modified trucks looking for increased fueling capacity.

45% Over
Strong mid-level upgrade for trucks with turbo and airflow improvements.

60% Over
Designed for aggressive street setups requiring upgraded fuel system support.

100% Over
Built for high-performance applications with significant supporting modifications.

150% Over
Competition-level fueling for highly modified engines.

200% Over
Extreme fueling configuration intended for advanced race builds.

250% Over
Serious high-output injector size for fully built engines.

300% Over
Designed strictly for dedicated competition applications.

350% Over
Maximum fueling option for advanced race-oriented builds.

400% Over
Full competition injector configuration for purpose-built engines only.

All performance injector applications require proper tuning and supporting modifications.

🧪 Injector Construction

• Brand new injectors — not remanufactured
• Balanced & matched for consistent cylinder fueling
• Designed specifically for 2003–2004 early common rail systems
• Built for performance and reliability when properly calibrated

🔧 Fitment

• 2003 Dodge Ram 2500 5.9L Cummins
• 2003 Dodge Ram 3500 5.9L Cummins
• 2004 Dodge Ram 2500 5.9L Cummins
• 2004 Dodge Ram 3500 5.9L Cummins
• Early Common Rail 5.9L

⚙️ Supporting Modifications

Injector sizing must match your build goals.

Larger flow rates may require:

• Upgraded or modified CP3
• Dual CP3 system (larger sizes)
• Lift pump upgrades
• Turbocharger or compound setup upgrades
• Custom tuning calibrated specifically for injector size

Oversizing injectors without proper supporting components can result in poor drivability and excessive smoke. When properly matched, these injectors deliver clean, controlled power.

⚠️ Important Purchase Notice

It is the purchaser's responsibility to confirm that the correct injector size is selected. Before purchasing, conduct proper research, consult with your tuner regarding sizing, or contact us directly at info@hardwayperformance.com.

Hardway Performance is not responsible for damages or issues resulting from incorrect injector sizing. Once installed, returns, refunds, or credits due to improper size selection will not be honored.

For additional warranty information, please refer directly to Dynomite Diesel’s warranty policy.

🚀 Why This Matters

The 2003–2004 early common rail platform responds extremely well to properly matched fueling upgrades. Selecting the correct injector size allows you to scale your build intelligently — from daily-driven applications to full competition setups — while maintaining reliability when properly tuned.

Fueling done the right way.

✖ Not For Sale In California

CALIFORNIA WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov