Chevrolet Duramax Fuel Injector - DDP - Reman Stock - `04-`05. This is a remanufactured stock-flow injector designed for the 2004.5–2005 Chevrolet Duramax 6.6L LLY application, offered as a single unit for repair or replacement projects.

Fully remanufactured by DDP to meet stock specifications, this injector is intended as a direct OE-style replacement for worn or failing injectors on LLY engines. Each unit is cleaned, inspected and flow-tested to ensure consistent operation within original tolerances. Using a reman injector can help restore consistent fueling characteristics without changing factory calibration, making it suitable for restorations, repairs, or component-level upgrades where stock flow is required.

Features

• Fitment: 2004.5–2005 Chevrolet Duramax 6.6L LLY (single injector)
• Remanufactured to stock flow and specs by DDP
• Bench-tested and flow-matched to ensure consistency
• Direct OE-style replacement — no modification required for typical installs
• Sold individually for targeted repairs or incremental rebuilds

This injector is a practical choice for enthusiasts rebuilding or maintaining an LLY Duramax who need a reliably remanufactured, stock-flow unit. It is not a performance or modified-flow injector; it retains factory flow characteristics and fitment to work with factory or tuned systems that expect OEM flow. Please verify vehicle year and engine code before ordering.

If you have questions or want help confirming fitment, call us directly — we’re happy to assist. We have two service locations offering installation and customization services: Austin, Texas and the Los Angeles, California area. Call 512-982-9393 (TX) or 562-981-6800 (CA) for more details or to schedule service. If you’re considering purchasing multiple items, contact us for shipping discounts. We install on premises at both locations.

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