Engine, 3.0L Duramax turbo-diesel inline-six

Years 2023–27 Models 4 Factory citations 13

Query this via API →

Also described as Engine, Duramax 3.0L turbo-diesel I6

Also documented for Chevrolet

Documented applications

Sierra 1500 — Next-Generation (2027)

2027 Factory-verified

Pro, Elevation 3SB, AT4, Denali, Denali Ultimate: O; Elevation 3VL: not offered; AT4X: included in the trim group, upgradeable; 305 hp (227 kW) at 3750 rpm and 495 lb-ft (671 Nm) at 2750 rpm; listed on the Crew Cab models only, with MQC and GU5

GM factory document — 2027 gmc next generation sierra 1500 retail and fleet fleet order guide, p.23.
GM factory document — 2027 gmc next generation sierra 1500 retail and fleet fleet order guide rpo codes, p.1.

Sierra — T1XX (2019–2026)

2023–2026 Factory-verified

the upfitter lists: common rail injection, DOHC, VGT turbo, aluminum, variation 2

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)

2025–2027 Factory-verified

2027: O on all trims; the 2025–2027 guides print LZ0 for the 3.0L Duramax; the 2022 and 2023 body-builder lists print the 3.0L turbo-diesel as LM2

GM factory document — 2025 gmc new yukon denali fleet order guide, p.38.
GM factory document — 2026 gmc yukon denali fleet order guide, p.39.
GM factory document — 2027 gmc yukon fleet order guide, p.35.

Yukon XL — T1XX (2021–2027)

2025–2027 Factory-verified

2027: O on all trims; the 2025–2027 guides print LZ0 for the 3.0L Duramax; the 2022 and 2023 body-builder lists print the 3.0L turbo-diesel as LM2

GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.40.
GM factory document — 2026 gmc yukon xl denali fleet order guide, p.41.
GM factory document — 2027 gmc yukon xl fleet order guide, p.36.

This page aggregates every documented appearance of LZ0 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.