2025 Gmc Sierra 2025 Slt Specs. Find specs and features for the 2025 gmc sierra 1500 including dimensions, horsepower, engine, capacity, fuel economy, transmission, safety rating, drivetrain and more. In this guide, we break down the engine options available in the 2025 gmc sierra 1500 and explore how each one impacts towing capacity, giving potential buyers a clear understanding.

View detailed specs, features and options for the 2025 gmc sierra 1500 4wd crew cab 147 slt at u.s. View information about specs and features.