Up next Cold-Weather Camping: The Best Winter Gear to Keep You Warm Published on January 14, 2025 Author Anya Murphy Photo Credit Gmc Tags Anya Murphy, AT4X trim, diesel, diesel trucks, Duramax 3.0L, gmc, GMC Sierra 1500 AT4X, GMC Sierra Duramax, Off-road, off-roading, Overland news, Share article Facebook 0 Twitter 0 Mail 0 The 2024 GMC Sierra AT4X gets a standard 3.0L Duramax Turbo-Diesel upgrade The 2024 GMC Sierra AT4X is getting a powerful Duramax upgrade. If you’ve been eyeing the GMC Sierra AT4X or are a fan of a Turbo-Diesel, we have good news for you. On the 2024 Sierra AT4X, GMC’s second-generation 3.0L inline-six Duramax Turbo-Diesel engine will come standard. The AT4X, GMC’s most capable and rugged trim, is an off-roading geared upgrade to the already beefy Sierra 1500. The updated 3.0L Duramax engine comes standard with a 10-speed automatic transmission that delivers 305 Hp and torque of 495 lb-ft. Key upgrades to the 2024 Sierra AT4X from the Duramax include: New steel pistons with a revised combustion bowl Retuned turbo compressor New fuel injectors Improved temperature control features “These refinements of the 3.0L Duramax Turbo-Diesel engine took an already awesome engine and made it even better for off-road applications,” said John Barta, GM assistant chief engineer, Diesel Engines. “The outstanding low-end torque combined with the smooth and quiet power of this diesel engine, make it ideal for customers requiring on-road capability for things like towing, as well as off-road adventures like long-distance overlanding.” Subscribe to our weekly newsletter The Duramax engine will be available on the 2024 GMC Sierra 1500 AT4X later this summer. Visit gmc.com for more information. Want to read up on more overland news, every week? Subscribe to the TREAD newsletter and get the best stories and most recent news delivered right to your inbox.
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