2020 GMC Yukon Submodel: Denali; Engine: 6.2L V8 FLEX; EngineCode: L86; EngineVIN: J;. 2020 GMC Yukon Submodel: Denali; Engine: 6.2L V8 GAS; EngineCode: L86; EngineVIN: J;. 2020 GMC Yukon Submodel: SLE; Engine: 5.3L V8 FLEX; EngineCode: L83; EngineVIN: C;.
