Industrial 0986435504SE-IIS Reman Stock Injector | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

Features:

• Genuine OEM remanufactured injector assembly
• Built with brand new factory OEM parts
• Direct replacement for 2004.5–2005 LLY Duramax
• Balanced tighter than original factory specs
• Includes new nozzle, o-rings, and crush washer
• Improves reliability and fuel system performance
• Ideal for stock or mild-performance applications
• Tested to meet or exceed OEM standards
• No tuning required for installation
• Covered by 1-year unlimited mileage warranty
• $150 refundable core charge within 45 days
• Sold individually for single-cylinder replacement

Get Your Duramax Running Strong Without The Guesswork

If your 2004.5–2005 LLY Duramax is acting up, showing signs of hard starts, rough idling, or lost power, there’s a good chance your injectors are ready to retire. Rather than risking it with unknown rebuilds or cheap knockoffs, the Industrial 0986435504SE-IIS Reman Stock Injector gives you a reliable, tested fix that puts performance and peace of mind back under the hood. These injectors are built from genuine OEM cores and fully rebuilt in-house using 100% brand-new OEM parts, including fresh nozzles for clean and efficient fuel delivery. It’s a direct-fit replacement, which means no custom tuning or extra modifications, just plug it in, torque it down, and get back on the road. Whether you're hauling gear, towing your trailer, or just cruising, this injector is designed to deliver factory-level performance you can count on. The kit includes new o-rings and a copper crush washer to ensure a tight seal and leak-free install. With a fully refundable core charge and a one-year unlimited mileage warranty, it’s a solid investment in your truck’s future.

Precision Calibrated And Purpose Built For Duramax Engines

The Industrial Injection 0986435504SE-IIS remanufactured injector is designed specifically for the 2004.5–2005 GM 6.6L Duramax LLY platform, offering a high-quality solution that meets or exceeds factory performance standards. Each injector starts life as a genuine OEM core, but is fully rebuilt using all new OEM internal components, including the nozzle, to ensure optimal spray pattern, fuel delivery, and long-term durability. Every unit is balanced to tighter tolerances than the original manufacturer specs, which results in more consistent fuel flow across all cylinders, smoother idle, and improved combustion efficiency. The included copper crush washer and o-rings simplify installation and help eliminate fuel leaks at the injector seat. This injector is ideal for drivers looking to maintain stock reliability or support mild performance upgrades without sacrificing drivability. It is individually tested on industry-leading equipment to verify resistance, back leak rates, and delivery across multiple load conditions. With a 45-day refundable core policy and coverage under a one-year unlimited mileage warranty, it delivers confidence along with consistent performance.

Fits: 2004, 2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

Notes:

• Fits 2004.5-2005 GM 6.6L Duramax LLY engines only
• Built from genuine OEM injector cores
• All internal components are brand new OEM parts
• Injector nozzles are replaced during remanufacturing
• Balanced tighter than original manufacturer tolerances
• Tested in-house on state-of-the-art equipment
• Each injector is sold individually
• Includes new copper crush washer and o-rings
• Direct fit with no tuning or calibration needed
• Backed by a 1-year unlimited mileage warranty
• $150 refundable core charge with 45-day return window
• Ideal for stock or mild performance applications