What does this injection line connect to?

This high-pressure injection line is designed to connect to the fuel rail and the specific fuel injectors numbered 2 and 7 on your Duramax LLY engine. It's a direct replacement for the factory line.

What makes this line durable?

The line features a stainless steel braided hose construction. This material choice helps it withstand the high pressures and temperatures found within the engine bay, ensuring reliable fuel delivery.

What symptoms might indicate a need to replace this line?

Symptoms of a faulty injection line can include rough engine idling, misfires, a noticeable loss of power, or the engine not starting at all. If you suspect a fuel delivery issue, it's best to have it diagnosed by a mechanic.

Fleece Performance 04.5-05 GM 2500/3500 Duramax LLY High Pressure Injection Line (No. 2 & 7)

Specifications

Brand: Fleece Performance
Part #: FPE-FL-LLY-27
UPC: 670875719026

Fleece Performance 04.5-05 GM 2500/3500 Duramax LLY High Pressure Injection Line (No. 2 & 7)

Name: Fleece Performance 04.5-05 GM 2500/3500 Duramax LLY High Pressure Injection Line (No. 2 & 7)
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. This high pressure injection line is for Duramax LLY engines, specifically for injectors No. 2 & 7.

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.
Designed for Duramax LLY engines, specifically for high-pressure injection lines to injectors No. 2 and No. 7.
Constructed with a stainless steel braided hose for durability and resistance to engine bay conditions.
Direct fit replacement for the original equipment line.

⚠️ 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

Built with a robust stainless steel braided hose, this high-pressure injection line from Fleece Performance is specifically made for the No. 2 and No. 7 injectors on 2004-2005 Chevrolet Silverado 2500 HD and 3500 trucks, as well as their GMC Sierra counterparts, equipped with the Duramax LLY engine. These lines are crucial for delivering the precise amount of fuel needed for optimal combustion, and when one fails, it can lead to rough running, misfires, or even a no-start condition.

Replacing a failed injection line is a common repair for these trucks. This line is designed to fit right into the factory location, making the replacement process straightforward for a mechanic. The stainless steel braiding offers good resistance to the heat and pressure found in the engine bay, ensuring a reliable fuel delivery path.

If you're experiencing fuel delivery issues or have diagnosed a faulty line on your Duramax LLY, this Fleece Performance replacement is a solid option to get your truck running smoothly again.