Product Description
Wake up your common-rail 5.9L with Exergy’s NEW 100HP injector set. The E02 20221 set uses precision SAC 5-hole nozzles at 128° spray angle for clean, controlled fueling, excellent atomization, and reliable power gains on 2004.5–2007 Cummins 5.9L 24V trucks.
Key Benefits
- ~100 HP gain potential with proper supporting mods
- SAC 5-hole, 128° spray for efficient combustion
- Brand-new Exergy components—flow-balanced and documented
- Supports towing and street builds while retaining drivability
Fitment
- Make/Model: Dodge Ram 2500/3500
- Engine: 5.9L Cummins 24-valve (common rail)
- Years: 2004.5, 2005, 2006, 2007 (mid-2004 “H.O.” CR introduction)
What’s Included
- (6) Exergy NEW 100HP injectors (E02 20221)
- Flow data sheet and installation guidance
Recommended Supporting Parts
Support rail pressure and keep fuel clean for long injector life:
Install Notes
- Professional install recommended. Use new sealing washers and torque to spec.
- Thoroughly clean the injector bores and seats; contamination is the #1 failure cause.
- Prime/bleed the fuel system and check for leaks before initial startup.
- Tuning optional but recommended to realize full benefit and maintain smoke control.
Frequently Asked Questions
Q: Do these require tuning?
A: They’ll run on stock tuning, but custom calibration helps optimize power, EGTs, and drivability.
Q: Are these NEW or reman?
A: This is a NEW Exergy set (not reman). Each set is flow-balanced with documented data.
Q: What supporting mods are recommended?
A: A quality lift pump, clean filtration, and healthy CP3 ensure stable rail pressure. Larger turbo/exhaust helps manage EGTs if towing or racing.
Q: Is there a core charge?
A: New injectors typically have no core charge. If a core policy applies, it will be shown in the product options or at checkout.
Q: Warranty?
A: Covered by Exergy’s manufacturer warranty. Keep proof of purchase and follow proper installation/filtration practices.
About Exergy Performance
Exergy is a leader in precision diesel fuel system components. Explore more Exergy products here: Exergy at CPP Diesel.
