DIESELR CP3 Conversion Kit (2011-2016 Duramax 6.6L LML)A Better Fuel System for Your LML Duramax The DIESELR CP3 Conversion Kit for Duramax 6. 6L LML (20112016) replaces the problematic factory CP4 with a proven CP3 compatible setupwithout the guesswork. Built for truck owners who dont want to gamble on a known weak point, this install ready kit lets you make the change before failure strikes. Why Diesel Owners Trust the CP3 The CP4 pump has earned its reputation for premature failure and expensive repair
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