Discover GMC Sierra 2500HD Pickup Engine. Order GMC Sierra 2500HD Pickup Vehicle Engine Parts & GMC Sierra 2500HD Pickup Engine Drive Belt Replacement. Maintaining your GMC Sierra 2500HD Pickup's engine is crucial for ensuring longevity and peak performance. Regular oil changes, using high-quality filters, and keeping an eye on coolant levels can prevent costly repairs. If you notice power loss, excessive exhaust smoke, or strange noises, it may be time to consider a replacement. For those in the market, the Sierra 2500HD offers robust engine options, including the impressive Duramax 6.6L Turbo-Diesel V8 for towing prowess, and the 6.0L V8 for reliable, responsive power. When selecting a replacement engine, consider the engine's compatibility with your model to ensure a seamless installation process. High-caliber materials and adherence to manufacturer installation guidelines will guarantee your Sierra runs smoothly, giving you the confidence to tackle any job.