The LML was the 2011-2016 6.6L Duramax, which introduced the Bosch CP4.2 high-pressure pump and the SCR/DEF emissions system. We carry OEM-brand LML parts - fuel injectors, CP4 injection pumps, turbochargers, DPF/DEF and emissions components, and related fuel-system and engine parts - many with no core charge and fast US shipping. Because Duramax parts vary by generation, verify the part against your LML by OEM cross-reference before ordering.