Fuel System
For 2011-2016 Ford Trucks With 6.7L Powerstroke Engines
In 2011, Powerstroke fans were cautiously optimistic about an all new, all Ford (no more International/Navistar relationship) 6.7 Powerstroke. The new Ford designed and manufactured, 6.7 Powerstroke engine came with an all-new Bosch injection system. As with most common rail injection systems, the fuel system consisted of a low-pressure fuel system and a high-pressure fuel system. The low-pressure side simply filters and transfers fuel from the tank to the injection pump, effectively keeping the injection pump lubricated and primed with fuel. The high-pressure side is delivered to the rails and injectors.
CP4 vs CP4.2
While a Bosch CP4 pump does exist, it was only ever used in smaller displacement European diesel engines. If you see terminology on the XDP or other websites referencing a CP4, it’s almost certainly a CP4.2, particularly if you are researching parts for Powerstroke, Duramax, or Dodge Ram diesel engines.
The main difference between a CP4 and a CP4.2 is the number of plungers inside. The CP4 has one internal plunger and the CP4.2 has two internal plungers. Thus, the CP4.2 can deliver significantly more fuel volume, allowing it to support a larger number of injectors. The Bosch CP4.2 can produce over 28,000psi in certain conditions. It delivers this fuel to two fuel rails, one per bank of injectors. From the rail, the fuel is then plumbed to each injector through individual fuel lines, where the fuel waits for an electronic signal to open the injector and inject fuel into the cylinder.
The vehicle Engine Control Module (ECM) regulates the pump rail pressure by modulating opening/closing regulators and actuators located on the pump and on the rail. Any excess fuel volume is returned back to the tank. Regardless of the application or name, rest assured that all common rail injection pumps have extremely precise internal tolerances and are susceptible to damage if not provided with ample, well filtered, diesel fuel containing few contaminants. The 2011-2016 6.7 Powerstroke, and its fuel injection system has given enthusiasts more confidence, performance, and reliability than previous fuel systems, and the control systems within the ECM can now deliver significant power while metering the fuel more precisely than ever.
Whether you are looking to perform routine maintenance with a Motorcraft fuel filter, repair your fuel system with an XDP, Industrial Injection, or Alliant Fuel Contamination kit, or improve your fuel system with an upgraded Lift Pump, or step-up performance and reliability with a CP4 to DCR Conversion or a Disaster Kit, XDP has your 6.7 Power Stroke Fuel System covered.
XDP carries 6.7L Ford carries parts from all the leading brands like Bosch, FASS, AirDog, PurePower, Dynomite Diesel, Bostech, GB Remanufacturing and more.