Product Description
Make more clean, reliable rail pressure on your LLY. The Industrial Injection 0986437308DF Dragon Fire 85% CP3 is a remanufactured, 10mm stroker pump that flows ~85% more than stock for the 2004.5–2005 GM 6.6L LLY Duramax. It’s built from Bosch cores, calibrated to OE-Spec+ standards, and backed by a 1-year warranty. $300 refundable core charge applies. (85% over, 10mm stroker, fitment, warranty & core per manufacturer/retailer documentation.)
- Flows ~85% more than stock (Dragon Fire 85) for strong rail pressure with larger injectors and tuning.
- 10mm stroker internal upgrade, remanufactured from Bosch cores with OE-Spec+ calibration.
- Direct-fit for 2004.5–2005 LLY Duramax (Silverado/Sierra 2500/3500).
- 1-year warranty; $300 core charge (refundable on acceptable core).
Fitment
GM Duramax LLY (2004.5–2005): Chevrolet Silverado 2500/3500, GMC Sierra 2500/3500 — 6.6L LLY only. Not for LB7/LBZ/LMM.
What’s Included
- Industrial Injection Dragon Fire 85% CP3 (P/N 0986437308DF)
- Installation O-rings/seals (as supplied by manufacturer)
- Core return instructions (core charge required)
Recommended Parts (internal links)
- Industrial Injection parts — pair with matched injectors/tuning.
- CP3 installation hardware & accessories
- Lift pumps (AirDog/FASS) to maintain supply pressure for high-flow CP3s.
- Diagnostics & tuning tools for proper setup and verification.
UPC
UPC: II4332000262 (as listed by a national retailer; Industrial Injection may not publish a separate UPC for modified units).
Specifications
| Brand | Industrial Injection |
|---|---|
| Part Number | 0986437308DF |
| Engine | GM 6.6L Duramax LLY |
| Model Years | 2004.5–2005 |
| Flow Increase | ~85% over stock (10mm stroker) |
| Type | Remanufactured high-pressure CP3 injection pump |
| Warranty | 1 year (manufacturer) |
| Core Charge | $300 (refundable on qualifying core) |
| Fuel System | Common-rail diesel |
FAQ
Is tuning required with a Dragon Fire 85 CP3?It will run on stock calibration, but the pump’s extra capacity is best utilized with proper tuning and matching injectors.
Do I need a lift pump with this CP3?Highly recommended for supply stability under load. See our lift pump options.
What is the core charge and how do I get it back?A $300 charge is added at purchase. Return an acceptable LLY CP3 core within the stated timeframe to receive a refund.
Is this legal for on-road use?Performance-modified pumps may not be CARB-approved; check local regulations before installation. Some retailers list these as not legal for sale in CA.
