The 2024 GMC Yukon is expected to introduce a full model refresh for the full-size SUV, debuting a long list of changes and updates for the current fifth generation. The question is – will those updates include the new 3.0L I6 LZ0 turbodiesel Duramax engine for the GMC Yukon AT4?
At present, GM has not provided any clear evidence that this will indeed be the case. However, looking at the models that currently offer the LZ0, the refreshed 2024 GMC Yukon AT4 could very well offer the LZ0 diesel engine as well.
First, a little background. General Motors unveiled the GMC Yukon AT4 trim level with the introduction of the nameplate’s fifth generation for the 2021 model year. However, as GM Authority was the first to report, the GMC Yukon AT4 is not available with the 3.0L I6 LM2 turbodiesel Duramax engine as a result of the GMC Yukon AT4’s unique front fascia, which includes a revised lower section with a higher cut than the standard 2021 Yukon. While the AT4’s unique fascia provides the SUV with a greater overall approach angle, it also obstructs the intercooler and intercooler piping for the 3.0L I6 LM2 turbodiesel engine.
Fast forward to today, and we find that the 2024 Chevy Silverado 1500 ZR2 will offer the new 3.0L I6 LZ0 turbodiesel Duramax engine. Meanwhile, the GMC Sierra 1500 AT4 already offers it. So, if GM can make the new diesel engine work with the Chevy Silverado ZR2, which incorporates a front fascia with a more-aggressive rake than that of the GMC Yukon AT4, it would bear to reason that the LZ0 could work with the refreshed 2024 GMC Yukon AT4 as well.
As a reminder, the 3.0L I6 LZ0 turbodiesel Duramax engine is rated at 305 horsepower at 3,750 rpm and 495 pound-feet of torque at 2,750. That substantial low-end torque would certainly make for a good fit under the hood of the off-road-oriented GMC Yukon AT4.