S&S Diesel CP4-6.7F-BP-G2.1 Gen2.1 CP4 Disaster Prevention Bypass Kit

PART# CP4-6.7F-BP-G2.1 | SKU SSDCP4-6.7F-BP-G2.1
★★★★★ ★★★★★ 4.8 (70 Reviews)

Vehicle Fitment For:
2011-2023 Ford F-250/350/450/550 6.7L Powerstroke

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$400.00

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Description

Keep the fuel system in your Ford 6.7L Powerstroke protected from potential CP4 pump failure by installing the S&S Diesel Gen2.1 CP4 Disaster Prevention Bypass Kit CP4-6.7F-BP-G2.1 from XDP. S&S Diesel Motorsport®, creator of the original Disaster Prevention Kit for the 6.7 Powerstroke, is at it again with a much-improved second generation kit. Since its debut in 2016, the original S&S 6.7L Powerstroke CP4 Bypass Kit (Disaster Prevention Kit) has safeguarded thousands of injectors from CP4 debris. 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 Bypass Kit features all quick connect lines that eliminates 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 this. 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 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 Gen2.1 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, 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.
 
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 Bypass Kit delivers even more value than the original. Best of all, there is no longer a need to distinguish what year the truck was made, the new Gen2.1 Bypass Kit will fit the Ford F250/F350/F450/F550 Super Duty pickup trucks with the 6.7 Powerstroke Diesel engine.

Features:
  • Made In The USA
  • Improves CP4 Output Past 3,000 RPM
  • Uses OE-Style Quick Connects (Easy Install)
  • One Part Number Fits All Years (2011 and Newer)
  • New And Improved Gen2.1 Disaster Prevention Kit
  • Fuel Supply Split-Off 25-Inches Away From The CP4 Pump
  • Return Filter Isolates CP4 Debris Before It Goes To The Tank
  • Thoroughly Validated & Proven To Work In Real-World Testing
  • Gen2.1 Billet Filter Head Accepts Standard Spin-On Fuel Filters
  • Safeguards Fuel Injectors, Rails, Lines, And Tank From CP4 Debris
  • Includes Donaldson P550943 Fuel Filter (9-Micron At 99% Efficiency)
  • Can Extend The Range Of A Truck In The Event Of A CP4 Failure
Manufacturer Warranty*:
2 Year / Unlimited Mileage

Instructions & Tech Info

Reviews For S&S Diesel CP4-6.7F-BP-G2.1

Overall Rating
4.8/5
70 Reviews
Verified Buyer
★★★★★ ★★★★★
Great kit!
Sim (Wyoming) | April 25th, 2026
Great kit. Well-designed and high-quality parts. The instructions were a bit confusing for me. The video was much more helpful and clear to me.
Verified Buyer
★★★★★ ★★★★★
High Quality
Keith (East Greenville, PA) | April 13th, 2026
I had these installed in two of our fleet vehicles, and the components are high-quality. I had no issue with the installation and have high expectations. From what I read, it's a matter of when, not if, so I am happy with this type of insurance against catastrophe.
Verified Buyer
★★★★★ ★★★★★
Owner
CG (NJ) | April 4th, 2026
Quality
Verified Buyer
★★★★★ ★★★★★
Great Product
Mike733 (Bayville NJ) | March 15th, 2026
Perfect fit for my 2016 F250 6.7
Verified Buyer
★★★★★ ★★★★★
Fast shipping
RacerX (Texas) | February 20th, 2026
Plan on installing this weekend. Nice kit and fast shipping.
Verified Buyer
★★★★★ ★★★★★
Owner
Stephen (Oregon) | February 14th, 2026
I returned kit as I decided to buy fuel pump instead
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Frequently Asked Questions

Do I need any tuning or engine software changes after install?
No, the S&S Diesel CP4-6.7F-BP-G2.1 Gen2.1 CP4 Disaster Prevention Bypass Kit does not alter engine performance or require tuning, as it is a mechanical protection system for the fuel return/case paths.
Is this kit legal in California?
Yes, the S&S Diesel CP4-6.7F-BP-G2.1 Gen2.1 CP4 Disaster Prevention Bypass Kit is CA legal as it C.A.R.B. EO# D-756-6.
Does this kit bypass the stock fuel filter?
No, the S&S Diesel CP4-6.7F-BP-G2.1 Gen2.1 CP4 Disaster Prevention Bypass Kit does not bypass the factory fuel filter entirely, but it does reroute the fuel filters differently in the event of a CP4 high-pressure fuel pump failure to protect your fuel system.
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Specifications For S&S Diesel CP4-6.7F-BP-G2.1

MPN CP4-6.7F-BP-G2.1
SKU SSDCP4-6.7F-BP-G2.1
ID 123088
Manufacturer Name S&S Diesel
Year(s) 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023
Make(s) Ford
Model(s) F-250, F-350, F-450, F-550
Engine(s) 6.7L Powerstroke
Shipping Weight 4.00 lb.
Shipping Length 16 in.
Shipping Width 9 in.
Shipping Height 4 in.
Fuel Type Diesel
E-Code 2
EO Number d-756-6
Manufacturer Warranty* 2 Year / Unlimited Mileage
Prop 65 Prop 65 WarningWARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
Internal L713R573

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