LB7 Duramax CP3 Pumps

Ensure consistent high-pressure fuel delivery with LB7 Duramax CP3 pumps. Designed for 2001–2004 6.6L Duramax engines, these CP3 fuel injection pumps are critical for proper injector performance and engine power. Replace worn or failing CP3 pumps to prevent hard starts, rough idling, and loss of power, keeping your diesel running smoothly and efficiently.