What does this injection line do?

This high-pressure injection line carries fuel from the injection pump to the fuel injector. This specific line is for cylinders number 3 and 6 on Duramax LLY engines.

Is this a complete set of injection lines?

No, this part number is for the high-pressure injection line for cylinders number 3 and 6 only. If you need lines for other cylinders, they would be separate purchases.

What is the Prop 65 warning about?

The Prop 65 warning indicates that this product contains chemicals known to the State of California to cause cancer or reproductive harm. Please refer to the manufacturer's documentation for more specific details.

Fleece Performance 04.5-05 GM 2500/3500 Duramax LLY High Pressure Injection Line (No. 3 & 6)

Specifications

Brand: Fleece Performance
Part #: FPE-FL-LLY-36
UPC: 670875719033

Fleece Performance 04.5-05 GM 2500/3500 Duramax LLY High Pressure Injection Line (No. 3 & 6)

Name: Fleece Performance 04.5-05 GM 2500/3500 Duramax LLY High Pressure Injection Line (No. 3 & 6)
Brand: Fleece Performance
Price: 76.15 USD
Availability: InStock

$76.15

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 2004-2005 Chevy Silverado 2500 HD. Fleece Performance high pressure injection line for Duramax LLY engines, specifically for cylinders 3 & 6.

Key Features

Fits 2004-2005 Chevrolet Silverado 2500 HD, 2004-2005 Chevrolet Silverado 3500, 2004-2005 GMC Sierra 2500 HD, and 2004-2005 GMC Sierra 3500.
Specifically designed for the Duramax LLY engine.
Replaces the high-pressure injection line for cylinders number 3 and 6.
Direct fit replacement part.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Will this fit your vehicle?

Product Details

Fleece Performance is known for making solid parts for diesel trucks, and this high-pressure injection line is no different. If you're working on a 2004-2005 Chevrolet Silverado 2500 HD or 3500, or a similar GMC Sierra, with the Duramax LLY engine, this line is designed to replace the original for cylinders number 3 and 6.

These lines are crucial for getting fuel to your injectors under the high pressures required for proper combustion. Over time, stock lines can develop issues, and replacing them with a well-built part like this from Fleece ensures your fuel system is working as it should. It's a direct replacement, meaning it's made to fit right into the factory location without needing any modifications.