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S&S Diesel Motorsport® Gen2.1 CP4 Disaster Prevention Kit - 2011+ Ford 6.7L

  • Based on 594 reviews
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Availability: In Stock.
Fulfilled by RudysPerformanceParts

Arrives Friday, Oct 23
Order within 13 hours and 54 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.

Brand: S&S Diesel Motorsport


Vehicle Service Type: Truck


Item Weight: 19 pounds


Item Highlight: CP4-6.7F-BP-G2.1


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


Item Highlight: CP4-6.7F-BP-G2.1


Manufacturer: S&S Diesel Motorsport


Unit Count: 1 Count


Number of Items: 1


UPC: 764227939092


Number of Packs: 1


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


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: Friday, Oct 23

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


  • $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

  • 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

  • A great price
A great product!!!!
Reviewed in the United States on September 5, 2026 by Flying high

  • 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 fit
Good quality parts everything fits perfectly I did it my self .
Reviewed in the United States on September 9, 2026 by Erik arias

  • Installation is not difficult
Installed on a 2019 F250 super duty. Pretty straight forward installation. The video provided by using the QR code is ok however, I was able to find better videos on YouTube. Truck started right up after priming the pump a couple times. I didn’t need any special tools other than an inch pound 1/4” drive torque wrench. Just use your 1/4” drive sockets, ratchet, a few different length extensions, screws drivers, pliers and a 1/4” impact driver. A very tolerant wife willing to help is a BONUS! ... show more
Reviewed in the United States on June 22, 2026 by JFK

  • Fantastic
Couple years have been so now is my time to give a review No leaks no problems at all Keeps my truck safe so yes please don’t hesitate to buy is probably the best kit out here
Reviewed in the United States on September 3, 2026 by Amazon Customer

  • 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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