The 2024 GMC Yukon is set to introduce the fourth model year of the SUV’s fifth generation, dropping in mostly unchanged compared to the 2023 model year. Critically, the 2024 GMC Yukon was originally expected to introduce a mid-cycle enhancement (alternatively known as a refresh) with a long list of enhancements and changes, but this is no longer the case. As such, the 2024 GMC Yukon will continue to offer the 3.0L I6 LM2 turbodiesel Duramax engine, rather than the 3.0L I6 LZ0 turbodiesel Duramax engine expected originally.
For those readers that still need to catch up, the 2024 GMC Yukon was originally expected to introduce the new 3.0L I6 LZ0 turbodiesel Duramax engine as a replacement for the 3.0L I6 LM2 turbodiesel Duramax engine offered currently. The new diesel powerplant was set to drop in conjunction with the SUV’s 2024 model-year refresh, but new information has come to light indicating that the refreshed GMC Yukon will in fact debut for the 2025 model year, if not later. As such, the 2024 GMC Yukon will continue to offer the 3.0L I6 LM2 turbodiesel Duramax engine as the optional diesel powerplant.
The new 3.0L I6 LZ0 turbodiesel Duramax engine includes a number of upgrades over the 3.0L I6 LM2 turbodiesel Duramax engine offered currently, including a retuned turbo compressor, improved temperature controls, new steel pistons, and new fuel injectors. These upgrades help to boost output to 305 horsepower at 3,750 rpm and 495 pound-feet of torque at 2,750 rpm, which is a 10-percent increase in power and a 7.6-percent increase in torque compared to the 277 horsepower at 3,750 rpm and 460 pound-feet of torque at 1,500 rpm produced by the 3.0L I6 LM2 turbodiesel Duramax engine. The LZ0 is currently available on the 2023 and newer model years for the GMC Sierra 1500 and Chevy Silverado 1500 pickup trucks.