S&S Diesel Motorsport CP4 to DCR Pump Conversion for 2011+ Ford 6.7L Powerstroke — Direct-fit Stanadyne DCR

S&S Diesel Motorsport’s CP4 to DCR Pump Conversion replaces the failure-prone CP4 in 2011+ Ford 6.7L Power Stroke trucks with a direct-fit, more durable Stanadyne-based DCR assembly that requires no calibration changes.

The CP4 high-pressure pump has a track record of sudden failures that can destroy an entire fuel system and lead to repair bills well into the thousands. S&S Diesel Motorsport partnered with PurePower to develop a Ford-specific DCR pump conversion that matches the CP4 output curve while improving reliability, durability, and compatibility with modern fuels. This conversion is a plug-and-play replacement designed to install like OE equipment and to restore dependable operation to Ford Super Duty trucks.

How does this conversion prevent sudden on-road failures?

The DCR conversion uses a robust two-piston Stanadyne DCR architecture with pressure-lubricated components and a corrosion-resistant fuel control actuator to minimize internal wear and debris damage. Its patented eccentric drive produces stable flow and faster response, reducing the stress patterns that commonly lead to CP4 breakdowns.

• Pressure-lubricated cam and bushings for reduced wear
• Corrosion-resistant valve components to block large debris
• Patented eccentric drive for smooth, reliable pumping
• Proven Stanadyne design adapted specifically for Ford 6.7L

Will it fit my Ford 6.7L Power Stroke without extra tuning?

Yes — the S&S DCR conversion is built to match the CP4 output curve so it installs as a direct drop-in replacement without requiring ECM calibration changes. The conversion uses OE-grade hoses and steel lines so fitment mirrors factory hardware and preserves original installation points.

• Direct plug-and-play installation; no tuning required
• OE-grade braided hose and steel fuel lines included
• Maintains factory mounting and connections for easy swap
• Designed to match CP4 flow characteristics exactly

How much more durable and capable is the DCR pump compared to CP4?

The DCR pump provides a higher displacement and engineered durability features that extend service life and tolerate low-lubricity or biofuel blends better than the CP4. With 1,250 mm3 per revolution — about 25% more than a CP4.2 — the DCR also supplies extra flow margin for worn injectors and high-return systems.

• 1,250 mm3/rev displacement (25% more than CP4.2)
• Biofuel and low-lubricity fuel compatible
• Low hydraulic and acoustical noise with fast response
• Validated across North American climates and duty cycles

Is the conversion legal and which models does it support?

The S&S DCR pump conversion is emissions compliant and carries applicable certifications for legal use. It was engineered specifically for 2011 through current model-year Ford F250–F750 Super Duty trucks, providing a direct replacement path for owners concerned about CP4 reliability.

• CARB compliant (EO# D-756-7)
• SEMA certified (SC-SDM01-0034)
• Fits 2011–2025 Ford F250, F350, F450, F550, F650, F750 models
• Tested in diverse climates and heavy-duty conditions

Who is this for: The S&S Diesel Motorsport CP4 to DCR Pump Conversion is intended for Ford 6.7L Power Stroke owners who want to eliminate the risk and expense of CP4 failures, maintain OEM fit and function, and gain a more fuel-tolerant, higher-capacity high-pressure pump. It’s aimed at fleet operators, contractors, and individual owners who rely on dependable performance from their Super Duty trucks and prefer a factory-like installation without calibration work.