SPE MOTORSPORT 11-19 6.7L POWERSTROKE DISASTER PREVENTION KIT

SPE 6.7 Powerstroke Disaster Prevention Kit + Exofilter
The “Disaster Prevention Kit,” it does exactly what it implies; it prevents the disasters of a CP4 pump failure from destroying the rest of a very expensive high-pressure fuel system. While this is a very simple concept up until now all the other systems on the market were incomplete in our eyes. SPE has rewritten the book and designed a kit that has none of the installation downfalls or shortcomings.

CP4 high pressure pumps are considered problematic for the 6.7L Ford Powerstroke engine due to them being more sensitive than other high pressure pumps. They are more susceptible to contamination due to tighter tolerances and higher operating pressures. When the pump fails It sends debris into the rest of the system and requires a several thousand-dollar replacement of injectors, rails, lines, etc. 

Function
The CP4 pump is internally lubricated by diesel fuel. Diesel fuel is pumped up via the lift pump to feed the CP4 lubricating the crankcase area of the pump first, Then fuel flows from the crankcase to the MPROP (volume control valve) once the valve meters the fuel it allows it to flow to the pump heads. It is then compressed and pushed out to the high pressure lines, rails, and injectors. The weakness of the CP4 pump lies in the crankcase area where a set of roller lifters/buckets ride on a camshaft. When the failure event occurs the fuel becomes contaminated immediately and is sent out to the rest of the system.