The DDP new-stock CP4 injection pump is a factory-style replacement for Chevrolet Duramax 6.6L LML models (2011–2016). Supplied as a brand-new CP4 unit, it provides direct-fit installation to restore original fueling behavior where a new stock pump is required. Choose this new pump when you want a factory-equivalent CP4 replacement for LML Duramax engines without reconditioning or adaptation.
DDP 11-16 Chevrolet Duramax 6.6L LML Brand New Stock CP4 Injection Pump