2011-2016 6.6L GM Duramax LML CP3 Injection Pump Conversion Kit

Protect your 11–16 6.6L LML Duramax from the infamous factory CP4 injection pump failure with this 2011-2016 6.6L GM Duramax LML CP3 Injection Pump Conversion Kit. Designed as a permanent solution to upgrade your fragile pump to the ultra-reliable, high-capacity CP3 architecture.

High-Flow Performance Ready: Engineered from solid billet aluminum with high-flow fittings and a valley feed line that perfectly support heavy towing and aftermarket lift pumps.

Eliminates $10k+ Repair Threats: Upgrades your truck to the heavy-duty CP3 platform, permanently eliminating the catastrophic failure risks and metal debris of the factory CP4 pump.

OEM-Quality Molded Hoses: Includes exclusive preformed fuel lines for a perfect, factory-like fit, ensuring a leak-free and much cleaner engine bay than generic loose hoses.

Flexible Conversion Design: Contains all critical adapters, brackets, and premium hardware needed for the mechanical swap, letting you choose your CP3 pump separately.

Fits: 2011–2016 6.6L Chevy and GM Silverado/Sierra Duramax LML 2500 and 3500 engines.