LML Duramax CP3 Conversion Kit | No Tuning Required | 2011-2016 GM Duramax LML

The Factory CP4.2 Pump Found on 2011 and newer Duramax's has been known to be a problematic component. Even the slightest amount of fuel or water contamination can ruin the pumps internals leading to metal debris flushing throughout the entire fuel system. When these pumps fail it can lead to a repair job usually including all new injectors, fuel system sensors, fuel lines, and complete cleaning of the fuel tank and costing upward of $8,000. We set out to develop a solution for this issue and came to market with the first CP3 Conversion kit in 2013. Our kit is tried and true and offers some items that other kits on the market today do not. A common issue we encountered is customers installing the CP3 Pump would break the brittle cast aluminum OEM pump mount bracket, so we designed a stronger Billet Aluminum piece to replace it and have not had an issue since.

Easy Starting
Unlike other companies CP3 conversion kits, our CP3 Conversion Kit has no start-ability issues. With our kit there is no need to prime the injectors before starting the truck after installation of injectors.

Proven Reliability
The CP3 fuel pump is proven to have longevity and to be reliable in performance applications.

Remove the Worries
The CP4 has known failure issues that cannot be remedied. These issues, if they occur, can cause damage to other major fuel system components.

All CP3 Conversion Kits Include:

• Billet CP3 Pump Mount Plate
• CP3 to rail high pressure fuel line
• High Pressure Rail Fitting
• High Pressure Rail Plugs & Caps
• Fuel line and Clamps
• Stainless CP3 Feed and Return Barb Fittings
• Dosing injector distribution block, feed and return lines
• Stainless Hardware
• Rail Plug
• FCA extension harness
• 50-state compliant; EO# D
• Made In The USA
• 3 Year Unlimited Mileage Warranty

CP3 PUMP OPTION CHART

STOCK CP3 Pump

• Stock Reman Pump
• 1 Year Unlimited Mileage Warranty

HD FireBall CP3 Pump

• Upgraded Reman Bosch Pump for more durability
• 1 Year Unlimited Mileage Warranty