Engine, 5.3L EcoTec3 V8 with Dynamic Fuel Management, direct injection and variable valve timing

Years 2019–20, 2022–27 Models 3 Factory citations 18

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Also described as Engine, 5.3L EcoTec3 V8

Also documented for Chevrolet

Documented applications

Sierra — T1XX (2019–2026)

2019–2020, 2022–2026 Factory-verified

the upfitter lists: gas, direct injection, Dynamic Fuel Management, aluminum, Gen 5

GM factory document — 2019 gmc 19 sierra 1500 body builder feb 20, p.12.
GM factory document — 2020 gmc 20 sierra 1500 electrical body buil 1, p.12.
GM factory document — 2022 gmc 22 sierra 1500 new electrical body builder sm en us 2022jul20, p.12.
GM factory document — 2023 gmc 23 sierra 1500 electrical body builder sm en us 2022oct12, p.12.
GM factory document — 2024 gmc 24 sierra 1500 sm electrical body builder esid 23dec12, p.14.
GM factory document — 2025 gmc my25 sierra 1500 electrical bbm, p.12.
GM factory document — 2025 gmc sierra 1500 retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2026 gmc sierra 1500 retail and fleet fleet order guide rpo codes, p.1.

Yukon — T1XX (2021–2027)

2022–2023, 2025–2027 Factory-verified

2027: Elevation, AT4: S

GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11.
GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11.
GM factory document — 2025 gmc new yukon denali fleet order guide, p.9.
GM factory document — 2026 gmc yukon denali fleet order guide, p.9.
GM factory document — 2027 gmc yukon fleet order guide, p.9.

Yukon XL — T1XX (2021–2027)

2022–2023, 2025–2027 Factory-verified

2027: Elevation, AT4: S

GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11.
GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11.
GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.9.
GM factory document — 2026 gmc yukon xl denali fleet order guide, p.9.
GM factory document — 2027 gmc yukon xl fleet order guide, p.9.

This page aggregates every documented appearance of L84 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.