Search  for anything...

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

  • Based on 264 reviews
Condition: New
Checking for product changes
$400.00 Why this price?

Buy Now, Pay Later


As low as / mo
  • – Up to 36-month term if approved
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Trends Auto

Arrives Wednesday, Jul 9
Order within 10 hours and 50 minutes
Available payment plans shown during checkout

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: ‎4.07 pounds


Package Dimensions: ‎15.94 x 8.86 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, Jul 9

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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

  • 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. Need to phone a S&S friend.
Reviewed in the United States on June 3, 2025 by Charlie

  • Excellent protection, a bit tricky and time consuming to install
A bit harder to install then you might think but overall, a great product!
Reviewed in the United States on June 1, 2025 by Dan Newman

  • Very good
Very good protection for the engine
Reviewed in the United States on June 5, 2025 by Amazon Customer

  • Well worth it
Took a solid half days worth of work to install, pretty straight forward and simple. Put about 15k miles on it so far with no issues. Worth the added insurance in my opinion, hopefully will never need to test it out.
Reviewed in the United States on May 14, 2025 by Zach

  • AWESOME KIT
GREAT QUALITY AND EASY INSTALL!
Reviewed in the United States on May 19, 2025 by tb56

  • Works great
Works great on my 2021 F450 with 6.7 powerstroke.
Reviewed in the United States on May 4, 2025 by John Kereczman

  • Yamaha warrior
Perfect fit on my warrior, works great!
Reviewed in the United States on May 4, 2025 by Ryan Tedrow

Can't find a product?

Find it on Amazon first, then paste the link below.