Product description
The Diesel Auto Power Complete Fuel Injector Line Set for the GM 6.6L Duramax LLY diesel engine is a high-quality OEM replacement kit designed to supply high-pressure fuel to all eight cylinders (1/8, 2/7, 3/6, 4/5) for optimal combustion and engine performance. This set includes four high-pressure fuel lines (part numbers 97378825, 97378826, 97378827, 97378828), each engineered to meet or exceed OEM specifications. These lines address common issues like rust, pitting, leaks, or corrosion in aging components, ensuring consistent fuel system pressure and preventing contamination that could damage injectors. Constructed from durable materials with options for stainless steel upgrades to resist rust, they withstand demanding conditions, making them ideal for both stock and performance applications. As direct-fit replacements, they offer easy installation and reliable operation. Backed by Diesel Auto Power’s commitment to quality, this complete injector line set is essential for restoring fuel system integrity and efficiency in Duramax LLY engines. Note: The set covers all eight cylinders, with each part number servicing a pair of cylinders (two lines per part number). Highly recommended when replacing injectors to avoid contamination.
Part Numbers in Set:
97378825 (Cylinders 1 and 8)
97378826 (Cylinders 3 and 6)
97378827 (Cylinders 4 and 5)
97378828 (Cylinders 2 and 7)
Cross Reference/Compatible Part Numbers:
97378825 (Cylinders 1 and 8):
Alliant Power: AP63725 (part of set)
Dorman: 904-125
Fleece Performance: FPE-FL-LLY-18 (complete set including 97378825)
97378826 (Cylinders 3 and 6):
Alliant Power: AP63725 (part of set)
Dorman: 904-127
Fleece Performance: FPE-FL-LLY-18 (complete set including 97378826)
97378827 (Cylinders 4 and 5):
Alliant Power: AP63725 (part of set)
Dorman: 904-129
Fleece Performance: FPE-FL-LLY-18 (complete set including 97378827)
97378828 (Cylinders 2 and 7):
Alliant Power: AP63725 (part of set)
Dorman: 904-131
Fleece Performance: FPE-FL-LLY-18 (complete set including 97378828)
Complete Set (Kits):
Dorman: 904-124 (covers all eight lines)
DHD: 700-017AFTK (high-pressure line set)
Fleece Performance: FPE-FL-LLY-18 (complete set)
XDP: XD593 (kit covering all lines)
