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S&S Diesel 6.7L DCR CP4-to-DCR Conversion Kit | CPP Diesel S&S Diesel 6.7L DCR CP4-to-DCR Conversion Kit for 2011-2022 Powerstroke Enhance the performance and reliability of your 2011-2022 Powerstroke 6.7L engine with the S&S Diesel 6.7L DCR CP4-to-DCR Conversion Kit. This kit replaces the factory CP4 pump with the robust and dependable DCR pump, offering improved fuel delivery, smoother operation, and increased durability for high-demand diesel applications. Why Upgra …