S&S Diesel Motorsport CP4 to DCR Pump Conversion for 2011+ Ford 6.7 PowerStroke — Stanadyne DCR, OE-fit plug-and-play

The S&S Diesel Motorsport CP4 to DCR Pump Conversion is a direct, factory-fit replacement that swaps the unreliable CP4 for a durable Stanadyne-based two-piston DCR pump engineered specifically for 2011+ Ford 6.7L Power Stroke trucks.

Owners of Ford 6.7L Power Stroke Super Duty trucks have faced sudden CP4 failures that can cascade into extremely costly high-pressure fuel system damage. S&S Diesel Motorsport, working with PurePower and using a Ford-specific Stanadyne DCR platform, offers a plug-and-play conversion that reproduces CP4 output characteristics without requiring calibration changes. The result is a more robust pump assembly, OE-style fuel lines and fittings, and a conversion validated across North American climates.

How does this conversion prevent unexpected roadside breakdowns?

The DCR conversion removes the problematic CP4 architecture and replaces it with a two-piston DCR pump built around a proven eccentric-drive design. It reduces the risk of catastrophic pump failure and minimizes the chance of secondary damage to the high-pressure fuel system.

• Proven Stanadyne-based DCR two-piston architecture designed for durability
• Pressure-lubricated cam and bushings for long life under load
• Corrosion-resistant Fuel Control Actuator (FCA) with debris protection
• OE-fit braided hose and steel fuel lines for leak-free integration

What performance and compatibility can I expect with my 6.7 Power Stroke?

The DCR pump is matched to the CP4 output curve so your truck operates normally without tuning. It delivers increased displacement and flow capacity to support worn injectors and high-return systems while remaining emissions compliant.

• 1,250 mm3 per revolution (about 25% more than a CP4.2) for ample flow
• Fits 2011 through current Ford F250–F750 6.7L Power Stroke models
• Biofuel and low-lubricity compatible to handle varied fuel types
• CARB-compliant (EO# D-756-7) and SEMA-certified installation option

How does installation and serviceability compare to the factory CP4?

This conversion is engineered for a direct drop-in replacement with OE-style connections, minimizing installation time and avoiding ECU recalibration. Its modular design also simplifies future service or replacement if needed.

• Plug-and-play swap with no tuning required
• Compact modular pump design for straightforward integration
• OE-grade hoses, clamps, and steel lines included for a clean install
• Validated by S&S–PurePower testing across diverse climates

What durability features make the DCR pump more reliable than the CP4?

The DCR uses patented eccentric-drive pumping with pressure lubrication and rugged materials to resist wear. The FCA and internal components are designed to limit debris ingress and corrosion, extending service life in harsh conditions.

• Patented eccentric drive and pressure-lubricated cam/bushings
• High-quality, corrosion-resistant valve components and actuator
• Lower hydraulic and acoustic noise with fast transient response
• Engineered tolerance for biofuels and low-lubricity fuels

Who is this for? This CP4-to-DCR conversion is aimed at Ford Super Duty owners and fleet managers who want to eliminate the CP4 failure risk, protect expensive high-pressure fuel components, and reduce downtime. It’s especially relevant for trucks that experience heavy-duty use, older injectors, or operate in extremes of climate where pump reliability is critical. If you value OE fitment, proven engineering, and a long-term solution to CP4-related failures, the S&S Diesel Motorsport 6.7F-DCR-1 conversion is built to keep your Power Stroke on the road and productive.