S&S Diesel CP4-6.7F-BP-G2.1-RFA CP4 Bypass Return Filter Assembly

The S&S Diesel CP4-6.7F-BP-G2.1-RFA CP4 Bypass Return Filter Assembly from XDP can be used to upgrade the first-generation bypass kit on your 6.7L Powerstroke. Ideal for those looking to significantly improve the debris management of their first-generation kit. The main task of both kits is to supply the CP4 case and the metering unit/plungers independently with clean, filtered fuel, and to reroute case fuel back to the tank. One major improvement of how the Gen2.1 kit accomplishes this is due to what happens to the debris when it exits the pump case. The Gen2.1 kit features a billet return filter head that accepts a readily available Donaldson P550943 spin-on fuel filter which prevents debris from reaching the tank, fuel lines, and supply pump. Previously, unfortunate victims of a CP4 failure, with the good fortune of having an original bypass kit installed, would still need to drop the tank and deal with all of the debris created by the failed CP4. This Return Filter Assembly lets you easily upgrade your existing S&S Gen1 kit and take advantage of the Gen2.1 improvements.