Injector #1 and #8 Line

Features:

• Direct OEM replacement for GM part number 97378825

• Designed specifically for cylinders #1 and #8 on LLY Duramax engines

• Precision-manufactured for reliable high-pressure fuel delivery

• Meets or exceeds OEM durability and performance standards

• Excellent solution for worn, cracked, or leaking injector lines

• Covered by a 1-year limited warranty

Restore Critical Fuel Line Functionality

The Fleece FPE-FL-LLY-18 High Pressure Injector Line is a direct-fit replacement for worn or damaged fuel lines on 2004.5–2005 GM 6.6L Duramax LLY engines. Designed for cylinders #1 and #8, this line ensures a tight, leak-free seal and maintains factory fuel system integrity — a must-have for injector servicing or fuel system repairs.

OEM Fitment Without the Guesswork

This line is engineered to meet exact GM specifications for proper routing and fitment. It’s built from durable materials capable of withstanding high fuel pressures, helping prevent leaks, hard starts, and injector issues that can arise from deteriorated lines.

Package Includes:

• (1) High pressure injector line for cylinder #1 or #8

Specifications:

• Part Number: FPE-FL-LLY-18

• Replaces GM PN: 97378825

• Application: Cylinders #1 and #8

• Warranty: 1-year limited parts warranty

Fitment Notes:

• Fits 2004.5–2005 Chevrolet Silverado and GMC Sierra 2500HD/3500HD with 6.6L Duramax LLY

• Designed only for use on cylinders #1 or #8

• Direct OEM-style replacement — no modifications required