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S&S Diesel Motorsport

S&S Diesel Motorsport® Gen2.1 CP4.2 Disaster Prevention Kit Compatible with 2011+ 6.7 Powerstroke (CP4-6.7F-BP-G2.1)

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Availability: In Stock.
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Arrives Wednesday, Sep 2
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Features

  • Made in the USA
  • Safeguards fuel injectors, rails, lines, and tank from CP4 debris
  • Thoroughly validated and proven to work in real-world testing
  • All OE-style quick connects (easy install)
  • Fuel supply split-off 25 inches away from the CP4 pump
  • Return filter isolates CP4 debris before it goes on to the tank
  • Gen2.1 billet filter head accepts standard spin-on fuel filters
  • Comes with Donaldson P550943 fuel filter (9-micron at 99% efficiency)
  • One part number fits all years (2011-2025)
  • CARB Compliant (EO# D-756-6)

Description

S&S Diesel Motorsport, the creator of the original Disaster Prevention Kit for the 6.7 Power Stroke, is at it again with a much-improved second generation kit. Since its debut in 2016, the original S&S 6.7L Power Stroke CP4 Bypass Kit (Disaster Prevention Kit) has safeguarded thousands of injectors from CP4 debris. In fact, it works so well that it has been copied by multiple opportunists within the aftermarket. Being a company founded by fuel system engineers, S&S Diesel Motorsport has the ability, and responsibility, to offer the best solutions to fuel system problems. While the original bypass kit offers really good protection from a CP4 failure, the last four years have given the S&S engineers plenty of time to discover and eliminate potential problems. The S&S Diesel Motorsport Gen2.1 6.7L Power Stroke CP4 Disaster Prevention 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 Gen2.1 kit accomplishes it. The Gen2.1 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 Disaster Prevention 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 Gen2.1 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 Disaster Prevention Kit installed, would still need to drop the tank and deal with all of the debris created by the failed CP4. One would think that major improvements would come at a major price increase. Having a clear understanding of common rail diesel fuel systems, and decades of OE engineering experience, enabled the engineers at S&S to make improvements without increasing production costs. Thanks to efficient design and use of material, the S&S Diesel Motorsport Gen2.1 6.7L Power Stroke CP4 Disaster Prevention Kit (CP4-6.7F-BP-G2.1) delivers much more value than the original, for an affordable price of $400.00 USD. There’s no longer a need to distinguish what year the truck was made, the new Gen2.1 Disaster Prevention Kit will fit 2011 to 2025 Ford Super Duty pickup trucks with the 6.7 Power Stroke Diesel engine. For those looking to improve the debris management of their first-generation Disaster Prevention Kit, the S&S Gen2.1 Fuel Return Filter Assembly (CP4-6.7F-BP-G2.1-RFA) can be purchased separately for $160.00 USD. The new Gen2.1 return filter head uses the same quick connect fittings and mounting hardware as the previous Gen2 filter, which allows for an easy retrofit. S&S customers who already own a Gen2 CP4 Disaster Prevention Kit can purchase the Gen2.1 Filter Head Upgrade (CP4-6.7F-BP-G2.1-FHU) to update their kit to the Gen2.1 spec for $120.00 USD. When considering future filter changes, the Donaldson P550943 replacement filters will be much less than the previous Gen2 filters, and they can be purchased from most auto parts stores.

Brand: S&S Diesel Motorsport


Product Grade: High Product Grade


Vehicle Service Type: Truck


Item Weight: 19 pounds


Manufacturer: S&S Diesel Motorsport


Brand Name: S&S Diesel Motorsport


Manufacturer Warranty Description: 2 Years; Unlimited Miles


Manufacturer Part Number: CP4-6.7F-BP-G2.1


Manufacturer: S&S Diesel Motorsport


Unit Count: 1 Count


UPC: 764227939092


Model Number: CP4-6.7F-BP-G2.1


Product Grade: High Product Grade


Compatible with Vehicle Type: Truck


Automotive Fit Type: Vehicle Specific Fit


Item Weight: 19 pounds


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Sep 2

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Well built product
Well designed, it was a bit of a challenge for DIY mechanic but instructions were good along with YouTube videos. Hope I never need it but provides peace of mind when traveling.
Reviewed in the United States on June 22, 2026 by Gary Beadle
    • Peace of mind
I'm glad I finally bought this. I have been wanting it for a while, but I figured I ought to do it sooner than later since I am getting up in age/miles on the truck. I will say, it is a pain to install though, be sure you have lots of patience that day, it'll be a good 6-8 hour ordeal if you're like me taking brewski breaks in-between. But it works well, no complaints! ... show more
Reviewed in the United States on November 20, 2025 by Tharen
    • $400 for this, or $10,000 for a contaminated fuel system on a Ford 6.7. You decide.
Just bought a 2015 F350 with a 6.7. I installed this kit last week. I had never even looked under the hood of a 6.7 before. I would say I'm advanced shade tree mechanic level. Been turning wrenches for 40 years but never professionally. Instructions are adequate, but not great. Several Youtube Videos for this install, one of the best being from Thoroughbred Diesel. Look 'em up. Straightforward install, but time consuming. Start to finish was 6 hours for me. Toughest part of install, hands down, was removing the plastic upper intake. Some of the rear bolts are a challenge to reach, and then removing the intake from the truck itself is a major PIA. There isn't much room to work with, and the bolts you just loosened stay on the intake, but loose- they can't be pulled out and removed. Those same loose bolts hang down and catch on everything as you try and pull the intake forward and out of the engine compartment. It's kind of like playing Whack-A-Mole trying to find the next bolt that is catching on something and causing you grief. The new fuel return line that runs from S&S's filter block back to the original return fitting on the truck was way too long. I contacted S&S for guidance. I talked to a rep and texted him pictures. He agreed that hose was too long for my 2015 and that they would make a shorter, custom return hose for my truck. Supposedly my stock truck is different than the millions of other 6.7's out there; who knows. The originally supplied hose is being used now, but it's a convoluted, twisted mess trying to deal with it being too long. Hopefully the shorter hose will show up soon. Truck was started back up according to directions. I cycled the key eight or 9 times to purge the fuel system before actually starting it. There is a lot of air in the lines and new return filter that needs to be purged; you can hear the air getting pushed back into the fuel tank and bubbling when you do this. Big picture, it's a no-brainer to do this. For $400 and a day of your time you will potentially save yourself a massive amount of money in the future. One side note- I debated installing this kit or doing the full S&S DCR pump conversion. I needed the truck on the road ASAP after I purchased it, and wasn't going to take a chance with the stock fuel system. This was much quicker, labor wise, and 1/5 the cost of the DCR pump. I'll go back and do the full DCR conversion at some point, but for now this was the best big-picture solution for me. ... show more
Reviewed in the United States on May 18, 2025 by RSchief
    • The Real Deal
This is the gold standard! Don't waste your money on cheap Chinese knockoffs. If you have any mechanical skill you can knock this out pretty easily. I treat my fuel and change filters religiously but still good piece of mind.
Reviewed in the United States on May 31, 2026 by K
    • For sure recommend
Easy installation and works greatv
Reviewed in the United States on June 9, 2026 by Sawyer Privette
    • S&S Disaster kit
Great product and quality machined parts compared to other brands. Very nice instructions and the you tube video to go along with this disaster kit is invaluable got me in and done in about 3 hours hardest part is the two bolts in back of the upper intake but once you find the angle it’s not bad. Glad I finally got to this project and I was lucky my screen on the pump was very clean. I gotta believe that using Archoil every other fill up helped keep the pump from failing…just my thoughts but mine looked very clean ... show more
Reviewed in the United States on April 9, 2026 by Bruce B.
    • Best product out there
Glad i purchased this. Everyone I’ve spoken to says it is necessary and I purchased this system based on people who work as technicians for ford.
Reviewed in the United States on July 23, 2026 by Louis B
    • Solid Kit with One Concerning Design Flaw
Overall, the S&S Diesel Motorsport CP4 Disaster Kit is a great product and a smart investment for anyone wanting to protect their fuel system. The components feel high quality, and once installed, everything seems to function as advertised. That said, I do have concerns about the barbed fittings that screw into the solid aluminum block where the filter mounts. Each barb has an O-ring, but they seated all the way down by hand, leaving no room to properly torque them. Even with a tool, I couldn’t get them to move at all - it almost felt like the pre-cut grooves for the O-rings were too deep. This has me worried that they could eventually leak under pressure or vibration over time. Aside from that issue, installation wasn’t too difficult if you have the specialized tools on hand. I definitely recommend watching a few YouTube videos beforehand—those walkthroughs helped a ton and made the process smoother. In the end, it’s a well-thought-out kit with one questionable design choice. Still, I’d recommend it, especially considering the peace of mind it offers compared to the cost of a full CP4 failure. ... show more
Reviewed in the United States on June 25, 2025 by Brian

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