2011–2025 Ford 6.7L Powerstroke CP4 Disaster Prevention Bypass Kit

2011–2025 Ford 6.7L Powerstroke CP4 Disaster Prevention Bypass Kit

Protect your 6.7L Powerstroke fuel system from the costly fallout of a CP4 failure.

The CP4 pump is one of the most well-known weak points on 2011–2025 Ford 6.7L Powerstroke trucks. When a CP4 fails, metal debris can contaminate the rest of the high-pressure fuel system and take out injectors, rails, lines, and even send contamination back toward the tank. This bypass kit is designed to help contain that damage by rerouting and filtering return-side fuel before debris spreads through the system.

Built around OE-style quick-connect plumbing, this style of kit avoids cutting the factory supply line and avoids compression fittings that can add leak points or introduce debris during installation. The updated Gen2-style layout also splits fuel supply farther away from the CP4 pump, helping isolate clean fuel from contaminated case fuel in a failure event.

Why install a CP4 disaster prevention kit?

• Helps protect injectors, rails, lines, and tank from CP4 debris
• Filters return-side contamination before it can spread
• Reduces the chance of a full-system fuel contamination event
• Uses OE-style quick connects for a cleaner install
• Helps avoid the massive repair bill that can follow a CP4 failure

Features

• OE-style quick-connect hose routing
• Fuel supply split approximately 25 inches from the CP4
• Return-side filter assembly to isolate pump debris
• Billet filter head that accepts standard spin-on filters
• Includes Donaldson P550943 fuel filter
• Designed as cheap insurance against catastrophic downstream fuel-system damage

Fitment

• 2011–2025 Ford F250 6.7L Powerstroke
• 2011–2025 Ford F350 6.7L Powerstroke
• 2011–2025 Ford F450 6.7L Powerstroke
• 2011–2025 Ford F550 6.7L Powerstroke

Important Note

A CP4 disaster prevention kit is not a cure for CP4 pump failure. Its job is to help keep a pump failure from destroying the rest of the fuel system. If the pump does fail with this type of kit installed, the goal is to limit the damage and reduce how much of the system has to be replaced.