Fleece #4 and #5 High Pressure Injection Line (FPE-FL-LLY-45) 2004.5-2005 Duramax LLY

The Fleece Performance (FPE-FL-LLY-45) High Pressure Injection Line (#4 and #5) is a precision-engineered replacement component designed specifically for the 2004.5-2005 GM Duramax LLY diesel engine. This high-quality injection line is built to meet or exceed OEM specifications, ensuring optimal fuel delivery and performance for cylinders #4 and #5. Constructed from durable materials to withstand high pressures and harsh operating conditions, the Fleece #4 and #5 injection line offers reliable operation and a precise fit. Ideal for replacing worn or leaking factory lines, this component helps maintain proper fuel injection timing and engine efficiency, making it a trusted choice for Duramax owners seeking performance and longevity.

Replaces GM Part # 97378827