2011-Current Powerstroke Owners Need To Know
# S&S Diesel DCR Conversion: A Proven Upgrade for 6.7 Powerstroke Reliability
For owners of the 6.7L Powerstroke, one of the most discussed upgrades in the diesel industry is the S&S Diesel Motorsport DCR (Dual-Contained Rail) fuel system conversion. Designed as a solution to one of the biggest concerns with the factory fuel system, the DCR conversion provides improved durability and peace of mind for truck owners who depend on their diesel every day.
At Downtown Diesel in Athens, TN, we regularly work with customers looking for long-term solutions that strengthen the reliability of their trucks. The S&S Diesel DCR conversion has become one of the most trusted upgrades for Powerstroke owners who want dependable performance.
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## The Problem with the Factory CP4 Fuel Pump
Many 6.7 Powerstroke engines use the Bosch CP4 high-pressure fuel pump. While capable of producing extremely high pressure, the CP4 pump has developed a reputation across the diesel industry for premature failures.
When a CP4 pump fails, it often sends metal contamination throughout the entire fuel system, including:
- Fuel rails
- Injectors
- Fuel lines
- Fuel tank
- High-pressure lines
Failures like this frequently require a complete fuel system replacement, which can lead to repair bills exceeding $8,000–$12,000.
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## What Is the S&S Diesel DCR Conversion?
The S&S Diesel DCR system replaces the CP4 pump with a more durable CP3-style pump design while maintaining compatibility with factory fuel system components and electronics.
Unlike some conversions that require extensive tuning changes, the DCR system integrates with the factory engine controls and calibration.
Key advantages include:
- Increased fuel system durability
- Stronger protection against catastrophic fuel contamination
- Improved reliability for heavy-duty use
- Direct integration with factory systems
For truck owners who tow heavy loads, run performance upgrades, or depend on their diesel truck for work, this upgrade provides a dependable long-term solution.
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## Why Diesel Owners Choose the DCR Conversion
The popularity of the S&S Diesel DCR system continues to grow because it addresses one of the most common reliability concerns in modern diesel trucks.
Many owners choose the upgrade for several reasons:
### Long-Term Durability
The DCR system uses a proven CP3-style pump design known for strength and longevity in diesel applications.
### Stronger Fuel System Protection
The design isolates internal pump components and protects the rest of the fuel system from catastrophic contamination.
### Ideal for Work Trucks
Contractors, fleets, and towing customers rely on dependable trucks. The DCR conversion strengthens the reliability of trucks that operate under heavy workloads.
### Performance Capability
The system supports trucks running performance upgrades or increased horsepower, making it popular among diesel enthusiasts and performance builds.
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## When to Consider a DCR Conversion
Many diesel owners install the DCR conversion before the factory CP4 pump fails as preventative protection.
This upgrade is commonly chosen for trucks that:
- Have higher mileage
- Tow heavy loads
- Operate in commercial or fleet service
- Run performance tuning or power upgrades
Installing the conversion before a failure helps protect the entire fuel system from extensive damage.
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## Professional Diesel Diagnostics and Installation
Proper installation of the S&S Diesel DCR conversion requires experienced technicians, correct fuel system procedures, and careful inspection of all fuel components.
At Downtown Diesel, our technicians specialize in diesel diagnostics, Powerstroke repair, and advanced fuel system upgrades. We work with diesel owners throughout Athens, Tennessee and the surrounding East Tennessee area to deliver dependable repairs and upgrades.
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## Diesel Repair Experts in Athens, TN
Whether your truck needs advanced diagnostics, fuel system upgrades, or major diesel repair, Downtown Diesel brings over 20 years of industry experience working on diesel trucks and equipment.
📍 Downtown Diesel
825 Congress Parkway N
Athens, TN 37303
From preventative upgrades like the S&S Diesel DCR conversion to complete diesel diagnostics and repairs, our team is committed to keeping your truck reliable and ready for the road.