What is the primary reason to replace these injection lines?

The primary reason is to replace lines that have become brittle, cracked, or are leaking due to age, heat, and constant fuel pressure. Worn lines can lead to poor engine performance and drivability issues.

Does this kit include all the necessary hardware for installation?

This kit includes the high-pressure injection lines themselves. It is recommended to inspect and potentially replace other related components like seals or clamps during installation, and to refer to the manufacturer's instructions for a complete list of recommended items.

Are these lines a direct replacement for the factory lines?

Yes, these lines are designed to be a direct replacement for the original equipment lines on the specified 2004-2005 Duramax LLY engines. This means they should fit without requiring modifications.

Fleece Performance 04-05 GM 2500/3500 Duramax High Pressure Injection Line Kit

Specifications

Brand: Fleece Performance
Part #: FPE-FL-DMAX-LLY-SET
UPC: 670875719002

Fleece Performance 04-05 GM 2500/3500 Duramax High Pressure Injection Line Kit

Name: Fleece Performance 04-05 GM 2500/3500 Duramax High Pressure Injection Line Kit
Brand: Fleece Performance
Price: 532.03 USD
Availability: InStock

$532.03

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Fits 2004-2005 Chevy Silverado 2500 HD. Fleece Performance High Pressure Injection Line Kit. Replaces worn or damaged lines for reliable fuel delivery.

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.
Replaces worn or damaged high-pressure fuel injection lines on Duramax LLY engines.
Constructed with durable materials to withstand high fuel pressure and engine bay heat.
Designed to meet or exceed original equipment specifications for a direct fit.
Ensures consistent and reliable fuel delivery to the injectors.
Part number FPE-FL-DMAX-LLY-SET from Fleece Performance.

⚠️ 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

This is the Fleece Performance High Pressure Injection Line Kit for your 2004-2005 Chevrolet Silverado 2500 HD or GMC Sierra 2500 HD with the Duramax LLY engine. Over time, the high-pressure fuel lines on these trucks can become brittle, crack, or develop leaks due to heat and constant pressure. Replacing them with a well-built kit like this ensures that your engine receives the consistent fuel pressure it needs to run smoothly and efficiently.

This kit includes all the necessary high-pressure lines to replace the factory ones. Fleece Performance uses strong, durable materials designed to withstand the demanding environment under the hood of a diesel truck. The lines are made to meet or exceed the original specifications, ensuring a direct fit and proper function. Proper fuel delivery is critical for performance and longevity, especially on a Duramax engine, and this kit addresses a common wear item that can cause significant drivability issues if ignored.

When installing this kit, it's a good idea to inspect your fuel filter and surrounding components for any other signs of wear or damage. Having the correct tools and a clean workspace will make the job go smoother. This kit is designed to be a direct replacement, meaning it should bolt up without modification, but always refer to the manufacturer's installation instructions for specific details and torque specifications.