S&S Diesel 2020-2021 6.7L Powerstroke Gen 2 CP4.2 Bypass Kit – S&S 7032020

$520.00

Product Highlights:

S&S Diesel Motorsport, the common rail diesel injection specialists, are the originators of an affordable kit that can save owners of the 2011-2019 Ford Super Duty with the 6.7L Power Stroke engine a fortune in repairs.

The S&S 6.7L Ford Power Stroke CP4.2 Bypass Kit, or commonly called the “Disaster Prevention Kit,” does exactly what the nickname implies, it prevents the disastrous consequences of an inevitable CP4 pump failure from destroying the rest of a very expensive high-pressure fuel system.

CP4 high pressure pumps are the Achilles heel of the 6.7L Ford Power Stroke engine due to high failure rates, which commonly take out the entire very costly high-pressure system with it (injectors, rails, lines). When the CP4 fails, it sends debris into the rest of the system and requires a several thousand-dollar replacement of injectors, rails, lines, etc. The S&S Bypass Kit reroutes the pump bottom end flow back to the tank and filters and prevents the CP4 debris from getting to the rest of the high-pressure system.

The S&S Bypass Kit can’t keep the CP4 from failing, but is cheap insurance to save a very expensive set of injectors and rails/lines! This is a 100% USA-made, 50 State CARB-compliant kit (EO number D-756-1) that requires no additional tuning or modifications after install and comes with an industry-leading two-year warranty.

The S&S Diesel Motorsport Gen2 6.7 Power Stroke CP4 Bypass Kit features all quick connect lines that will eliminate the need for cutting the factory supply line, which is a debris introduction point, especially if the cut is not thoroughly deburred. It also eliminates the need to use a compression fitting, which is a potential leak point. The OE-style quick connect lines also eliminate any threaded joints that are further leak points and have the potential of generating debris during install. 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. There are two major improvements in how the Gen2 kit accomplishes it. The Gen2 fuel supply is split off into two separate lines 25 inches from the CP4, which will eliminate the chance of contaminated case fuel back-feeding into the clean fuel supply line. The original bypass kit splits off within an inch of the pump, and is more susceptible to debris back-feeding, if the CP4 failure produces enough debris to clog the fuel return system. The other improvement is what happens to the debris when it exits the pump case. The Gen2 kit features a 2-micron filter in a clear firewall-mounted housing that prevents debris from reaching the tank, fuel lines, and supply pump. It can be visually inspected at a glance for debris, which will give notice to a failed 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.

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