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The 2011–2016 GM 6.6L LGH Duramax is a lesser-known but highly capable diesel engine, primarily used in Chevrolet Express and GMC Savana commercial vans, as well as select cab & chassis applications. This engine shared much of its architecture with the LML but was tuned for efficiency, longevity, and reliability — ideal for fleet, delivery, and utility vehicles.
Our catalog of 2011–2016 LGH Duramax parts includes both factory replacement components and proven upgrade options. Popular parts include Fleetguard and ACDelco filters for long service intervals, AFE cold air intake systems for improved airflow, and BD Diesel turbo components for enhanced efficiency. Many fleet operators also choose FASS lift pumps, PPE transmission upgrades, and ARP hardware for added durability. For maintenance and reliability, we carry injectors, sensors, gaskets, and cooling system parts engineered for the LGH’s unique calibration and setup.
Whether you manage a fleet of Express vans or maintain a single work vehicle, Thoroughbred Diesel provides the trusted brands and expert support you need. Browse by category, explore featured parts, or shop trusted manufacturers below — everything you need for your 2011–2016 LGH Duramax is right here.