2001-2004 Duramax Dual CP3 Kit w/o Pump (432402)

Industrial Injection dual CP3 install kit for 2001-2004 Chevrolet Silverado 2500HD/3500 and GMC Sierra 2500HD/3500 6.6L LB7 Duramax — kit only, the second CP3 is sold separately. The right starter kit if you already have a spare or modified CP3 lying around and just need the install hardware.

A dual-CP3 setup adds a second CP3 pump driven off accessory power, sharing the fuel-delivery load with the original engine-driven CP3. Efficiency goes up, EGTs go down, and rail pressure stays constant under heavy demand. Each pump now does half the work, which means the original internal CP3's drive load drops by 50% — more pump life. If one pump fails the IIS controller automatically switches full delivery control to the remaining functioning pump.

• Dual CP3 Install Kit — Bracket, Plumbing, Controller
• Includes IIS Failover Controller (Auto-Switch on Pump Failure)
• Pumps Share 50/50 Fuel Delivery Load
• Reduces Drive Load on Original CP3 by 50%
• Increased Efficiency, Lower EGTs, Constant Rail Pressure
• Part Number: 432402

• Does NOT include a CP3 pump. Source the second CP3 separately based on the build's fuel demand.
• For the same kit with a pump bundled in (Dueling Dragons / Dueling Double Dragons options), see the DCP3CLB7 Dual CP3 Kit w/ Pump.