0445120008 Fuel Injector for 2001-2004 Chevy Silverado GMC Sierra 2500HD 3500HD | AUTOKITSHOP

Overview

Restore the power and efficiency of your heavy-duty diesel engine with the AUTOKITSHOP 0445120008 Fuel Injector. Precision-engineered for 2001-2004 Chevrolet Silverado and GMC Sierra 2500HD/3500HD models equipped with the 6.6L LB7 Duramax Diesel, this injector delivers reliable fuel atomization for smoother idling, improved throttle response, and optimal combustion. Whether you’re towing, hauling, or tackling daily jobs, this direct replacement component helps eliminate misfires, rough running, and reduced fuel economy. Manufactured to meet or exceed OEM specifications, it’s the ideal solution for restoring your Duramax to peak performance.

Compatibility

This fuel injector is specifically designed for the following vehicles:

• 2001-2004 Chevrolet Silverado 2500HD – 6.6L LB7 Duramax Diesel
• 2001-2004 Chevrolet Silverado 3500HD – 6.6L LB7 Duramax Diesel
• 2001-2004 GMC Sierra 2500HD – 6.6L LB7 Duramax Diesel
• 2001-2004 GMC Sierra 3500HD – 6.6L LB7 Duramax Diesel

Replaces OEM part numbers: 0445120008, 0986435502, 97729095, 97720661, 97720604, and 0 986 435 502. Always verify your engine code (LB7) and model year to ensure a perfect fit.

Key Features

• OEM-Grade Construction: Built with high-strength materials to withstand extreme diesel injection pressures and temperatures.
• Precision Fuel Atomization: Delivers a fine, consistent fuel spray pattern for complete combustion, reducing smoke and emissions.
• Direct Fit Replacement: No modifications or adapters needed – simply remove the old injector and install this unit.
• Restored Engine Performance: Eliminates common LB7 injector issues like rough idle, hard starting, and loss of power under load.
• Rigorous Quality Testing: Each injector is flow-matched and pressure-tested to ensure reliable operation from the first start.
• Complete Package: Includes 1x fuel injector – ready to install with the required hardware (refer to factory service manual).

Why AUTOKITSHOP?

At AUTOKITSHOP, we understand the demands of heavy-duty diesel ownership. That’s why every injector we supply is sourced from trusted manufacturers and undergoes strict quality control checks. Our team specializes in LB7 Duramax components, so you get the right part the first time – no guesswork, no returns. We offer competitive pricing, fast shipping, and dedicated customer support to answer your fitment or installation questions. When you choose AUTOKITSHOP, you’re choosing reliability, value, and a partner who keeps your truck on the road and working hard.