2011-2016 Duramax Dual Fuel Kit w/o Pump (436407)

The Industrial Injection Dual Fuel Kit adds a belt-driven CP3 alongside the factory pump on a 2011-2016 6.6L Duramax LML so the two pumps share the fuel delivery load. With both pumps splitting volume, rail pressure stays consistent under heavy fueling, EGTs come down, and the original pump sees roughly half its previous drive load. Sized for builds running large injectors and high-level tunes. This 436407 SKU is the kit without the second CP3 — supply your own pump.

• Adds a second CP3 alongside the factory pump for high-volume fuel delivery
• Maintains constant rail pressure under heavy fueling
• Helps reduce EGTs
• Cuts drive load on the factory pump by approximately 50%
• Designed for large injectors and high-level tune programs

• Does not include a CP3 pump — choose 436408 for the kit with the pump included.
• Will not fit trucks with dual alternators — the CP3 mounts where the second alternator lives.
• May not clear the EGR cooler — removal may be required for fitment.
• Custom tuning is required to run a dual-pump setup. Running this kit without matching tuning can damage the engine.
• An aftermarket lift pump is required.