2024 Duramax Diesel Specs For Sale. Edmunds also has gmc sierra 1500 diesel pricing, mpg, specs, pictures, safety features,. Engine hierarchy and pricing vary by model, and in other trims the duramax is the penultimate option.

The truck’s l5p duramax diesel engine received a substantial bump in power and torque thanks to a stout list of upgrades, including a new turbocharger,. Current truck is a 2014 duramax with the 6 speed.