If you own a 2011–2024 Ford 6.7 Powerstroke—you’ve probably heard the horror stories: one bad CP4 pump failure can send metal shavings through your entire fuel system, wiping out injectors, lines, rails, and even the tank.
The fix? Often $8,000–$12,000 in repairs and weeks of downtime.
That’s exactly why S&S Diesel Motorsport created the CP4 Disaster Prevention Kit, and why we at FASS Motorsports recommend pairing it with a FASS Diesel Fuel System for ultimate peace of mind.
The CP4 Problem, Explained in Plain English
The Bosch CP4 high-pressure fuel pump was designed to meet tight emissions and efficiency standards, but its internal lubrication is notoriously finicky. Any hint of air, vapor, or low-quality fuel can cause metal-on-metal contact. When that happens:
- The pump’s internal cam and roller fail.
- Metal debris is sent downstream.
- The truck instantly loses fuel pressure and dies.
- Injectors, rails, and lines all get contaminated.
In other words: one tiny failure can equal a full system rebuild.
How the S&S CP4 Disaster Prevention Kit Saves the Day
Instead of trying to “bulletproof” the CP4 pump itself, S&S Diesel re-engineered the fuel path. The Disaster Prevention Kit (SKU: CP4-6.7F-BP-G2.1) intercepts the return fuel and reroutes potential metal shavings back to the tank instead of into your injectors and rails.
Key benefits include:
- Damage containment – stops contamination at the source.
- OEM-level fit and finish – installs cleanly without tuning or emissions delete.
- Proven track record – trusted by top diesel shops and daily drivers alike.
Think of it like a fire door inside your fuel system—if the CP4 fails, the “fire” never spreads.
Why Pair It with a FASS Diesel Fuel System?
Here’s where FASS Diesel Fuel Systems take protection to the next level. The S&S kit isolates debris, but FASS prevents the conditions that can cause CP4 failures in the first place:
- 2-micron filtration to keep out microscopic grit and rust.
- Water separation that removes 99%+ of water.
- Air/vapor removal improves fuel lubricity at LEAST 10%.
Together, the FASS + S&S combo is the ultimate one-two punch: FASS keeps the fuel clean and lubricated, while S&S acts as a final safety net if the worst happens.
Perfect for Stock or Modified Trucks
Whether you drive a bone-stock daily or a tuned monster, the S&S Disaster Prevention Kit plus a FASS system is a bolt-on, emissions-friendly upgrade that:
- Extends injector and pump life
- Protects against catastrophic failures
- Maintains factory driveability and warranty compliance
Order and Install with FASS Motorsports
FASS Motorsports makes protecting your truck simple:
- In-stock kits from S&S Diesel Motorsport
- Expert installation at our Washington, Missouri shop
- Fast nationwide shipping for DIY installs
- S&S Disaster Kits ship FREE to the lower 48 United States
Your diesel deserves better than a roll of the dice. Stop CP4 disasters before they start—shop the S&S CP4 Disaster Prevention Kit and FASS Diesel Fuel Systems today.
Have questions about S&S or FASS products for your diesel? Contact us today:
- Phone Number: (636) 429-7020
- Email Address: info@fassmotorsports.com