104K views · 2.1K reactions | We saw a unique failure in the shop. LML with a CP3 conversion kept having pump failure which lead us to dig in a little more and find a problem not visible. | Dan's Diesel Performance, INC | Facebook

10K reactions · 430 shares | Diesel High Pressure Fuel Pump Failure. CP4 failure and cause explanation #autoshop #autorepair #enginebuild #diesel #carrepair | Dave's Auto Center | Facebook

It’s junk! CP3 conversion on this LML Duramax | Dave's Engines

WCFab LML CP3 Conversion Kit; We offer TWO different styles kits, and we often get asked, what is the difference? In this video we explain, Street Series Vs Race! What is a CP3 Conversion? 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 usua

These kits are the perfect solution for trucks with bigger turbo kits and injectors that have reached the limits of the stock HP4 pump and are in search of more power. ***Requires use of an aftermarket low pressure / CP3 compatible lift pump. Not compatible with OEM L5P in-tank pump or high-pressure lift pumps designed for use with HP4 injection pumps.*** Which CP3 pump size option is best for you? Sportsman (WCF100455)- A great choice for trucks looking to replace a failed HP4 or applications w