The Ford 6.7L Power Stroke is a powerhouse of modern diesel engineering, boasting impressive towing capabilities, fuel efficiency, and performance. However, one critical component continues to cause concern among Ford truck owners—the CP4 high-pressure fuel pump.

The CP4’s reputation for failure is well-documented, with a recent recall from for on virtually brand new trucks, and many owners experiencing catastrophic fuel system failures that lead to expensive repairs. To address this widespread issue, S&S Diesel Motorsports, in collaboration with Stanadyne’s Pure Power division, developed the DCR injection pump, a direct bolt-on CP4 replacement that enhances reliability, efficiency, and overall engine performance. It’s considered the ultimate solution to the CP4 problem, and available through retailers such as KC Turbos.

Why the CP4 Pump is a Liability for Your 2011+ Power Stroke

Ford’s 6.7L Power Stroke has been a dominant force in the diesel truck world since its introduction in 2011. However, one major weak link remains to be its CP4 fuel pump. While designed for modern emissions standards, high injection pressure and efficiency, the CP4 pump has proven unreliable, often leading to catastrophic engine damage when it fails.

The factory CP4 pump is prone to premature wear, especially in low-lubricity fuel environments (such as ultra-low sulfur diesel commonly found in the U.S.) and even in well-maintained trucks, failure rates remain high due to the pump’s internal design flaws. When the CP4 pump fails, it sheds metal debris into the fuel system, contaminating injectors, fuel rails, fuel lines, and even the fuel tank. This leads to need for a complete fuel system replacement, often taking repair costs to well over $10,000.

For 2011–2024 Ford Power Stroke owners, the CP4 is a time bomb waiting to fail which is why upgrading to the S&S Diesel Motorsports DCR pump is the smartest preventative move you can make to protect your truck’s engine and fuel system.

The DCR Pump: A Revolution in Power Stroke Fueling

To solve the CP4 problem once and for all, S&S Diesel Motorsports partnered with Stanadyne’s Pure Power division, a leader in advanced diesel fuel systems, to create the DCR pump conversion kit. This direct bolt-on CP4 replacement is designed to improve reliability, fuel system longevity, and performance—without requiring tuning or other modifications.

The DCR uses a completely different internal mechanism. Unlike the CP4, which relies on a fragile roller cam system, the DCR pump features a low-friction, self-lubricating design that dramatically reduces wear that has been used in industrial diesel markets in other countries for over a decade. The redesigned pumping mechanism eliminates the risk of premature pump failure and metal contamination. One of the biggest benefits of the DCR pump is the internal modifications S&S and Pure Power worked together to develop to match the required fuel pump curve to offer seamless integration into the 6.7L Power Stroke application. By offering OE fuel curve throughout he RPM range and an OEM fitment with supplied lines and fittings, there are no other modifications to the truck required. No need to add aftermarket tuning. No need to change the rest of the fuel system. The DCR pump is a direct drop-in replacement for the CP4 in 2011+ Ford Power Stroke trucks.

The engineers behind the DCR Conversion kit spent countless hours developing, testing, and tweaking this pumps deliverables to ensure the system offers a more stable and precise fuel supply that leads to smooth operation at all RPM ranges. It offers OEM drivability with excellent throttle response, efficient fuel atomization, and even more flow under wide open throttle, which will allow this pump to support more power than factory once you get into modifying the truck more heavily.

Stock & Modified Applications

One of the standout features of the S&S Diesel Motorsports DCR pump is its ability to work seamlessly in both stock and higher-end performance builds. The DCR improves longevity, eliminating that risk of a CP4 failure. Enhances reliability, keeping the fuel system from unwanted contamination. All while being fully compatible with the factory ECM calibrations. But for those modified applications, the pump is capable of supporting more without worries of fuel starvation, lower injection pressures, or extreme pressure fluctuations under the demands of more aggressive tuning and injector combos. The versatility of the DCR system makes it the ideal upgrade for daily driving, towing, and racing.

50-State Emissions Compliance

On top of all those other benefits, the DCR Conversion kit also carries a California Air Resources Board (CARB) Executive Order (EO Number), making it legal to install and run in all 50-states. The current D-756-7 EO covers 2011-2023 model years, with 2024 applications under review for addition. The DCR offers more than a reliable solution to problematic CP4 problems, it provides improved performance all while maintaining clean emissions, which also ensures your engines emissions equipment won’t under go undue stress or demand from a dirtier running engine.

No matter how you use your 6.7L Power Stroke, the DCR pump provides a significant upgrade in reliability and performance over the factory CP4 system. But you don’t have to be performance minded to see the benefits of the S&S pump swap, as it can save you thousands in costly repairs down the road. When comparing the costs of a DCR conversion with the repairs from a CP4 failure, it becomes a real no brainer for anyone planning to keep their newer Ford diesel around for years to come. By proactively upgrading to the DCR pump now, you’ll spend only a couple thousand dollars, and eliminate the risk of finding yourself scrounging up the $10,000+ required to get your truck back on the road when the CP4 fails.

For 2011–2024 Ford Power Stroke owners, upgrading to the S&S Diesel Motorsports DCR pump is a must. It solves the CP4’s biggest issues, improves fuel system reliability, enhances performance, and provides long-term peace of mind. If you own a 6.7L Power Stroke, don’t wait for a CP4 failure to leave you stranded. Upgrade to the S&S Diesel Motorsports DCR pump today and experience the next generation of reliable, high-performance diesel fueling.