Chevrolet Duramax Fuel Injector - DDP - Stock - '04-'05. This is a brand-new DDP stock fuel injector for 2004.5–2005 Chevrolet Duramax 6.6L LLY trucks, sold as a single direct-fit unit. It replaces worn or faulty injectors with a component built to factory specifications.

Intended for enthusiasts and technicians who want a reliable OEM-style replacement, this injector restores intended fuel delivery and engine response without requiring tuning changes. Manufactured to match original flow and fitment, each unit is inspected and measured for proper sealing and flow before packaging. Use this injector to address misfires, rough idle, or inconsistent performance caused by injector wear while keeping your engine calibration intact.

Features

• Brand-new DDP stock injector, sold individually
• Direct-fit for 2004.5–2005 Duramax 6.6L LLY
• OEM-spec flow and fitment for straightforward replacement
• Inspected and measured for sealing and flow before shipping
• Ideal for restoration or phased injector replacement

If you have questions or want help confirming fitment, call us at 512-982-9393 (TX) or 562-981-6800 (CA). We have two locations—Austin, Texas and the Los Angeles, California area—where we offer installation and customization services and install on premises at both shops. If you are thinking about purchasing multiple items, contact us for shipping discounts and to schedule installation.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov