2006-2010 Duramax Dual CP3 Kit w/Pump (DCP3CLBZ/LMM)

The Industrial Injection Dual CP3 Kit (with second pump) for the 2006-2010 LBZ/LMM 6.6L Duramax adds a second belt-driven CP3 alongside the factory pump, splitting fuel delivery between the two units. With both pumps sharing the load, drive load on the original CP3 drops by roughly 50%, rail pressure stays consistent at high fueling, and EGTs come down under sustained load. If one pump fails, the Industrial Injection controller automatically routes full fuel delivery to the surviving pump.

• Complete dual CP3 kit — bracket, lines, controller, and second pump included
• Drops factory CP3 drive load by approximately 50%
• Doubles available fuel volume for large injectors and high-HP tunes
• Maintains rail pressure under heavy fueling demand
• Reduces EGTs under sustained load
• Automatic failover — controller routes full delivery to the surviving pump if one fails
• Second pump available with Dueling Dragons (85% over) or Dueling Double Dragons (120% over) stroker modifications for competition builds

• This kit includes the second CP3 pump. For the kit without a second pump, see part number 438402.