Engine, Duramax 6.6L turbo diesel V8, B20 biodiesel compatible

Years 2011–14, 2016 Models 2 Factory citations 2

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Also described as Engine, Duramax 6.6L turbo-diesel V8, B20 diesel compatible

Also documented for GMC

Documented applications

Silverado HD — GMT900 (2007–2014)

2011–2013 Single-source

GM Authority's LML engine page gives the Silverado HD LML from the 2011 model year, with the MW7 Allison; no GM list in the repository covers 2011–2013
2014 Factory-verified

397 hp; requires MW7 and the chassis cab body (ZW9); includes K40, TUV and K05

GM factory document — 2014 chevrolet silverado 3500hd cc fleet order guide wayback, p.4.

Silverado HD — K2XX (2015–2019)

2016 Factory-verified

397 hp (296 kW) at 3000 rpm and 765 lb-ft (1032.8 N-m) at 1600 rpm; requires MW7 and GT4; includes exhaust brake (K40) and engine block heater (K05); the 2017 guides' trailering tables still name it, but their engine pages give the L5P

GM factory document — 2016 chevrolet silverado 2500hd fleet order guide wayback, p.4.

This page aggregates every documented appearance of LML in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.