S&S Diesel 6.7F-DCR-1 | 6.7 Powerstroke CP4 to DCR Pump Conversion Kit

Eliminate the biggest reliability threat on your 6.7 Powerstroke.

The factory Bosch CP4 high-pressure fuel pump has a well-earned reputation for failing without warning. When it does, it sends metal debris through the entire high-pressure fuel system, often resulting in $10,000–$15,000+ in repairs and a truck that’s suddenly undrivable. It’s one of the most expensive and frustrating failures on the 6.7L Powerstroke platform.

The S&S Diesel CP4 to DCR Pump Conversion Kit (6.7F-DCR-1) solves this problem at the source. Developed in partnership with PurePower Technologies (Stanadyne), this direct drop-in replacement removes the problematic CP4 entirely and installs a much more robust, purpose-built two-piston DCR pump engineered specifically for the Ford 6.7 Powerstroke.

Why This Kit Stands Out

• True plug-and-play design — Matches the CP4 output curve exactly. No ECU calibration, no tuning, and no programmer required.
• 25% more fuel delivery — 1,250 mm³ per revolution vs. the stock CP4.2. Gives you extra headroom for stock or moderately worn injectors and better long-term reliability under load.
• Proven, durable architecture — Based on Stanadyne’s established DCR platform with patented eccentric drive pumping technology, pressure-lubricated cam and bushings, and a corrosion-resistant Fuel Control Actuator (FCA).
• Quieter operation — Significantly lower hydraulic and acoustic noise than the factory CP4.
• Fuel compatibility — Works with biofuel and low-lubricity fuels without the same vulnerability as the CP4.
• Complete kit — Includes the DCR pump plus OE-grade braided fuel hose and steel lines for a clean, direct-fit installation.

Key Specifications

• Max pressure: Up to 2,200 bar
• Displacement: 1,250 mm³ per revolution (+25% over CP4.2)
• Pump type: Two-piston DCR (Stanadyne-based, S&S engineered)
• CARB EO#: D-756-7 (emissions compliant where applicable)
• Warranty: 2 Years / Unlimited Miles

Fitment

2011–2025 Ford Super Duty 6.7L Powerstroke F-250 | F-350 | F-450 | F-550 | F-650 | F-750

This kit works as a preventative upgrade (highly recommended) or as a direct replacement after a CP4 failure. If your CP4 has already failed catastrophically, a full fuel system inspection and contamination flush are strongly advised before installing the new pump.

Installation

Typical install time is 8–12 hours. The kit is designed as a true drop-in with all necessary lines and hoses included. Professional installation is recommended. An official S&S/XDP installation video is available for reference. Early models (2011–2016) may require a specific vacuum pump gasket.

Part Number: 6.7F-DCR-1

This is one of the highest-ROI upgrades you can make on a 6.7 Powerstroke. It removes a major point of failure, adds a margin of fuel delivery safety, and gives you peace of mind whether your truck is a daily driver, workhorse, or long-distance hauler.

Protect your truck. Protect your wallet. Ditch the CP4 risk for good.