Product Description
Feed your LLY the fuel it needs with the Exergy E04 10206 10mm Stroker CP3 Pump. Built on an LBZ-based housing and calibrated by Exergy Performance, this single-stroker CP3 delivers increased displacement and stable rail pressure for street, tow, and performance builds while preserving OE-like drivability.
Key Benefits
- 10mm stroker design for higher fuel volume vs. stock CP3
- LBZ-based pump architecture for durability and smooth fueling
- Exergy flow-verified and calibrated for repeatable performance
- Direct-fit for LLY; factory-style lines and mounting retained
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 10206 10mm Stroker CP3 Pump (LBZ-based)
- Pre-assembled with regulator; bench-tested and verified by Exergy
- Basic installation guidance
Recommended Supporting Parts
Protect the investment and keep supply pressure stable with these proven add-ons:
- GM Duramax Lift Pumps (AirDog / FASS)
- Exergy LLY Injector Sets (choose flow to match your build):
- Gaskets & Seals (Duramax)
- Shop All Exergy Performance
Install Notes
- Professional installation recommended. Prime/bleed the fuel system thoroughly after install.
- No tune required for stock fueling; tuning may optimize heavily modified builds.
- Use clean diesel and quality filtration; contamination is the #1 cause of CP3 failure.
Frequently Asked Questions
Q: Does this fit LLY without special adapters?
A: Yes. It’s a direct bolt-in on 2004.5–2005 LLY trucks using factory lines and mounting points.
Q: Do I need a lift pump with a 10mm CP3?
A: Strongly recommended to maintain consistent inlet pressure and filtration. See our lift pump category.
Q: Which injectors pair well with this pump?
A: For tow/daily, start with Exergy 30–45% over; performance builds often step up to 60–250% over. See Exergy LLY injector options above.
Q: Is there a core charge?
A: If applicable, details appear in product options or at checkout.
Q: What about warranty?
A: Covered by Exergy’s manufacturer warranty. Keep proof of purchase and follow proper install/filtration practices.
About Exergy Performance
Exergy is a leader in precision diesel fuel system components for Duramax platforms and beyond. Explore the full lineup here: Exergy Performance at CPP Diesel.
