The 2025 GMC Sierra 2500 HD is a seriously capable heavy-duty truck that offers excellent capability without compromising on comfort and technological convenience. Pro The foundational trim of the Sierra 2500 HD is set up for raw power and reliability. A 6.6-liter V8 gas engine comes as standard, paired with an Allison® 10-speed automatic transmission. […]

Tags: 2025 GMC Sierra 2500 HD, GMC Sierra 2500 HD Trims
Posted in GMC Sierra 2500 HD, GMC Sierra Heavy Duty, GMC Trucks, Stillwater GMC Dealer | No Comments »