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
Fleece FPE-FL-LLY-18 Injector #1 and #8 Line | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
Fleece Performance Products
MSRP:
Was:
Now:
(Inc. Tax)
MSRP:
Was:
Now:
$69.99
(You save
)
(No reviews yet)
Write a Review
Write a Review

Fleece Performance Products
Fleece FPE-FL-LLY-18 Injector #1 and #8 Line | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
- SKU:
- FLCFPE-FL-LLY-18
- UPC:

Add to Cart
The item has been added
Fleece Performance Products
Fleece FPE-FL-LLY-27 Injector #2 and #7 Line | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
MSRP:
Was:
Now:
(Inc. Tax)
MSRP:
Was:
Now:
$69.99

Add to Cart
The item has been added
Fleece Performance Products
Fleece FPE-FL-LLY-36 Injector #3 and #6 Line | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
MSRP:
Was:
Now:
(Inc. Tax)
MSRP:
Was:
Now:
$69.99

Add to Cart
The item has been added
Fleece Performance Products
Fleece FPE-FL-LLY-45 Injector #4 and #5 Line | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
MSRP:
Was:
Now:
(Inc. Tax)
MSRP:
Was:
Now:
$69.99

Add to Cart
The item has been added
Fleece Performance Products
Fleece FPE-FL-DMAX-LLY-SET Injector Line Kit | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
MSRP:
Was:
Now:
(Inc. Tax)
MSRP:
Was:
Now:
$489.00

Add to Cart
The item has been added
Industrial Injection
Industrial 504COBRA5175 Competition Injector | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
MSRP:
Was:
Now:
(Inc. Tax)
MSRP:
Was:
Now:
$683.66
!