Product Description
Step up the fueling on your LLY with the Exergy E04 10205 Sportsman CP3 Pump. Built on proven LBZ-based CP3 architecture, this Exergy Performance unit is calibrated and flow-verified to deliver stable rail pressure, OE-like drivability, and dependable performance for 2004.5–2005 Duramax 6.6L LLY trucks.
Key Benefits
- LBZ-based CP3 design for durability and smooth, consistent fueling
- Exergy-calibrated and flow-verified for quality and repeatability
- Excellent choice for tuned or lightly modified LLY trucks
- Direct-fit replacement with factory-style connections and mounting
Fitment
- Make/Model: Chevrolet Silverado 2500HD/3500HD; GMC Sierra 2500HD/3500HD
- Engine: 6.6L Duramax LLY
- Years: 2004.5, 2005 (mid-year 2004 LLY introduction)
What’s Included
- Exergy E04 10205 Sportsman CP3 Pump (LBZ-based)
- Unit is assembled and calibrated by Exergy Performance
- Basic installation guidance
Recommended Supporting Parts
Protect your investment and stabilize supply pressure with these popular add-ons:
- GM Duramax Lift Pumps (AirDog / FASS)
- Exergy LLY Injector Sets (choose the right flow for your goals):
- Shop All Exergy Performance
- Gaskets & Seals (Duramax)
Install Notes
- Professional installation recommended. Thoroughly prime and bleed the fuel system after install.
- No tuning is required for stock setups; tuning can optimize benefits with larger injectors/turbo.
- Maintain clean fuel and quality filtration; contamination is the #1 cause of pump failure.
Frequently Asked Questions
Q: Does this CP3 fit the LLY without extra adapters?
A: Yes. It’s a direct bolt-in for 2004.5–2005 LLY trucks using factory lines and mounting points.
Q: Should I run a lift pump with this CP3?
A: Highly recommended. A quality lift pump improves filtration, supply pressure, and pump longevity. See our lift pumps.
Q: Which injectors pair well with this pump?
A: For stock/tow rigs, 30% Over sets are a great match. Higher-power builds can step up to 150% Over and beyond. See the Exergy LLY options linked above.
Q: Is there a core charge?
A: Some CP3s include a refundable core charge. If applicable, details will be shown in the product options or at checkout.
Q: What warranty does this come with?
A: Covered under Exergy’s manufacturer warranty. Keep proof of purchase and follow correct install/filtration procedures.
About Exergy Performance
Exergy is a leader in precision diesel fuel system components for Duramax platforms and more. Browse the full lineup here: Exergy Performance at CPP Diesel.
