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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, Oct 15
Order within 44 minutes
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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.

Manufacturer: ‎S&S Diesel Motorsport


Brand: ‎S&S Diesel


Model: ‎S&S Diesel Motorsport Disaster Prevention Kit


Item Weight: ‎4.05 pounds


Package Dimensions: ‎15.94 x 8.9 x 4.69 inches


Item model number: ‎CP4-6.7F-BP-G2.1


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


Position: ‎Front


Lift Type: ‎Automatic


Date First Available: April 30, 2021


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Oct 15

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


  • High quality product. Time consuming install. Worth it.
High quality parts, delivered extremely fast, you can tell S&S takes pride in their products. Installation was a pain, but doable if you have time (took me 5 hours at a careful pace) and a variety of swiveling maneuvering tools. Be sure to have a Long T25 and a Long 4mm Allen as well. I did end up needing to bring down the lower manifold, but that’s no biggie! Overall very happy with the kit and the peace of mind it gives. ... show more
Reviewed in the United States on March 9, 2025 by Barrett Skillman Barrett Skillman

  • Don't buy the knock off ones! It's worth the money to buy S&S!
Works as it should. Approx. 3k miles and I didn't blow my truck up yet. Customer service was great. Directions are good but could use some tweaking for us non-mechanics. My filter has 3 ports and directions were not straightforward. I needed to phone a S&S friend.
Reviewed in the United States on June 3, 2025 by Charlie

  • Pricier is good
Product seems good,easy install
Reviewed in the United States on July 28, 2025 by Jim

  • Good insurance
Great, well built product. Make sure to set aside an entire weekend to complete the project if you're a newbie. Three trips to Auto Zone, blood, sweat, and tears, finally got it installed with no leaks or error codes. Be sure to watch the SSFuels YouTube video with Ian going step by step for the install. ... show more
Reviewed in the United States on August 4, 2025 by Happy Homesteader

  • Cheap kits hose not rated for diesel
Have no real miles on it yet but the kit is well designed. Former ASE certified tech i still do all my own work. Kit is relatively simple to install just alot has to come apart to do it. If you not mechanically inclined take it somewhere as you're messing with alot of the top end here and a number of things can go wrong. I initially purchased the cheaper $100 no name kit on here but once it came in I realized the lines supllied were feom china and rated for hydraulic/brake fluid. While it may have been fine i didnt wanna take a change with the diesel especially the bio blend erroding the line. So i opted to spend the money for this kit and im glad i did. I changed both my fuel filters an ended up getting no fuel to the topside filter. After digging in I realized it was an error on my part. I didn't bottom out the lift pump filter and it was pulling air. If you change the lift pump filter on the rail lube the o ring with light oil or diesel fuel and tighten it till you hit the mechanical lock. If you have to force it hard something is wrong. Mine got tigh and I though I bottomed out and it gave me issues. That has nothing to do with the kit just a tip for anyone who may run into that changing the rail filter. Kit looks great, have no loss of power just be sure to check the FCDM for metal shavings in the screen. If you have them you pump is done and might as well upgrade since its all apart. Also for those of us who have the 11-14 powerstroke that has the ceramic bearings. You will literally be at the intake of the turbo when doing this. This is a good time to check the play on the wheel. A little sided to side play is normal as the oil pressure will take that play out but there should be no in out play when you push pull the wheel. Also look at the turbo housing. When the bearings go bad it will allow the turbo wheel to touch to housing and gouge it. That's the sound you hear when the bearing fail. THANKS S&S ... show more
Reviewed in the United States on June 11, 2025 by Adam Wrong

  • Good product
So far so good. Install is pretty straight forward. Instructions provided in box are clear, but S&S could take the time to create more specifics for the different years. My truck is a 2017 6.7 power stroke and there is a small portion where the instructions lack, videos don’t cover it, so it just takes know how. No fuel pressure issues and no leaks after a few weeks and added peace of mind. ... show more
Reviewed in the United States on June 11, 2025 by Amazon Customer

  • Safety for the cost. Looks very clean when done!
Why did you pick this product vs others?: While it may be time consuming to install (i am not a mechanic and it took me about 4 hours), it is a huge load off my shoulders knowing my fuel delivery is safe now! I would preferred to have replaced the pump with the new style that does not granade of course, but this is the next best thing for the price. I did use Youtube videos along with the provided instructions. ... show more
Reviewed in the United States on July 6, 2025 by jfin

  • It Works…Customer Service is Great
I got this after a friend of mine recommended it based on the faulty CP4’s that the 6.7L’s have. A month later I’m driving down the highway and my truck starts spraying fuel. My fuel temp sensor seemed to have failed and one of the rail sensors in this kit melted…ya that fuel was HOT, fortunately I didn’t catch my truck on fire. I emailed their support team explaining the situation asking if I could get a new piece of theirs that had melted due to the temp failure. They said yes, and mailed one for free immediately. They also recommended I check my filter on their kit bc they had seen that failure being related to a CP4 failure also. I did, and sure enough metal shavings all in it, the CP4 had failed, the disaster prevention kit saved the day. This saved me $1000’s having this kit. Now I need a new fuel pump so I bought the DCR conversion from them because of the incredible customer service and quality of their parts. I just had it installed. Truck runs great again! ... show more
Reviewed in the United States on July 27, 2025 by Jesse Jesse

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