Product Description
Feed serious horsepower on your LLY. The Exergy E04 10209 14mm Stroker CP3 is a Race Series, LBZ-based pump engineered for high fuel volume and stable rail pressure under heavy load. It’s flow-verified and calibrated by Exergy for competitive builds that demand reliable fueling at elevated power levels.*
*Competition use only. Not legal for use on pollution-controlled vehicles on public roads.
Key Benefits
- 14mm stroker CP3 for high fuel mass and pressure stability at RPM
- LBZ-based architecture for durability and smooth delivery
- Exergy calibration and flow verification for consistency
- Ideal for large injector/turbo setups and race calibrations
Fitment
- Make/Model: Chevrolet Silverado 2500HD/3500HD; GMC Sierra 2500HD/3500HD
- Engine: 6.6L Duramax LLY
- Years: 2004.5, 2005 (mid-year LLY introduction in 2004)
- Direct bolt-in using factory mounting and drive; tuning & lift pump required
What’s Included
- Exergy E04 10209 14mm Stroker CP3 Pump (LBZ-based)
- Pre-test and calibration documentation from Exergy (when provided by manufacturer)
Recommended Supporting Parts
Match the pump with a quality lift pump and Exergy-brand LLY injectors sized for your power goal:
- GM Duramax Lift Pumps (AirDog/FASS)
- Exergy LLY Injector Sets:
- Duramax Gaskets & Seals
- Shop All Exergy Performance
Install Notes
- Lift pump required. Maintain clean, well-filtered supply; contamination is the #1 cause of failure.
- Custom tuning required. Coordinate injector size, turbo, and pump calibration.
- Prime/bleed the system thoroughly after install; verify commanded vs. actual rail pressure.
Frequently Asked Questions
Q: How much power will this support?
A: With the right injectors, turbo, and fuel supply, 14mm Race Series pumps are used in builds targeting ~1200+ HP. Results vary by combo and tuning.
Q: Can I run this on stock injectors?
A: It’s designed for performance injectors. If you’re near stock, consider a Sportsman/10–12mm pump instead.
Q: Do I need dual pumps?
A: Many LLY builds run a single 14mm successfully; very high-HP setups may still step to compounds/duals depending on goals.
Q: Street legal?
A: No. This Race Series pump is for off-road/competition use only.
About Exergy Performance
Exergy is a leader in precision diesel fuel systems. Explore more here: Exergy Performance at CPP Diesel.
