GMC and Chevrolet are updating the engines on their full-size pickup trucks for the 2024 model year.
GMC on Wednesday said it will make General Motors’ second-generation 3.0-liter inline-six Duramax Turbo-Diesel engine standard on the 2024 Sierra 1500‘s AT4X off-road trim starting this summer, after it was offered on some 2023 trims. The engine is paired with a 10-speed automatic transmission and offers 305 hp and 495 pound-feet of torque.
The 2024 Sierra also is getting other updates, including power retractable assist steps on the Denali, Denali Ultimate, AT4 and AT4X trims; two more premium aluminum wheel options; and two new exterior paint colors, Downpour Metallic and Thunderstorm Gray.
Meanwhile, Chevy said the 3.0-liter Duramax Turbo-Diesel engine and 10-speed automatic transmission will be added to the 2024 Silverado 1500 ZR2.
The Silverado’s 2024 updates also include new exterior paint colors, Lakeshore Blue Metallic and Slate Gray Metallic; Active Dual Exhaust for trucks with the 6.2-liter V-8 engine; and a Blackout Appearance Package across multiple trims, Chevrolet said. The Silverado High Country will get a Midnight Edition with power retractable assist steps and LED lighting.
In addition, Chevrolet and GMC said their 2.7-liter turbo high-output engine is now called TurboMax. It offers 310 hp, 430 pound-feet of torque and a towing capacity of 9,500 pounds.