97378827 OE High Pressure Injector Line, 4/5

For 2004.5, 2005 GM 6.6L Duramax LLY

New High Pressure Injector Line. Used on number 4 and 5 cylinders. Replace badly corroded or damaged line with new. Cylinder number 4 is the second cylinder back on the drivers side of the engine. Cylinder number 5 is the third cylinder back on the passenger side of the engine. This line services both positions.