S&S Diesel Motorsport® CP4 to DCR Pump Conversion WORK Turbochargers is proud to offer the S&S CP4 to DCR conversion kit for your 6.7L Ford Powerstroke. FORD 6.7L POWER STROKE CP4 PROBLEM The CP4 has a well-earned reputation for failing without warning, creating sudden power loss,... MSRP: Was: Now: $1,990.00 Add to Cart