Get the Best Priced GMC Sierra 2500 HD Parts

The GMC Sierra with the HD (heavy duty) designation was introduced in 1999, along with the nearly identical Chevrolet Silverado. The Sierra and Silverado HD versions replaced earlier light-duty trucks with redesigned, full-sized, heavy duty pickup trucks. The earlier versions of Chevy Silverado and GMC Sierra trucks had always been very similar, and the 1999 HD revolution continued with very minor differences in available engine and equipment options. Exterior design continued to show only mild differences, with things like different grilles, varied interior trim, and certain features and options introduced at different times between the two trucks. The other major difference was that GMC has introduced a Denali model of the Sierra, and Chevrolet has not offered a Silverado Denali option.

The HD version of the Sierra is still considered a light truck (vehicle weight) but characterized as "heavy-duty" because of it's towing and cargo capacity. The GMC Sierra is available in 1500HD, 2500 HD, and 3500 HD models. The difference between the three is the engine's horsepower rating and torque. Earlier versions of the 2500 HD had a five-speed automatic transmission, which was later replaced with a six-speed auto. HD versions of the Sierra are primarily useful for heavy cargo and high performance towing. The different engines in the three HD models provide different levels of towing power. The 2500 HD was rated to tow 16,000 pounds with the larger, 8.1 liter engine, or 10,600 pounds with the 6.0 liter version. The cargo capacity for the 2500 HD is listed as just over 4,000 pounds.

The second generation of HD Sierra trucks was introduced in 2006. During the next eight years, the heavy duty design was upgraded with high strength steel frames that improved stiffness by 92%. The redesign included bigger, more responsive springs, larger engines, and hydraulic body mounts to improve the vehicle's ride. The front suspension was modernized and special care was paid to improve the handling and alignment of the vehicle. The third generation of the Sierra and Silverado models premiered in 2014 and continued to see the trucks improve their design, capacity, and features. Even though the 2500 Sierra HD is a truck built to be a work horse, the modern work truck also integrates upgrades in technology and innovation to provide a high level of comfort. The Sierra has high quality, but durable, interior design and technological advances like wi-fi hotspots, USB ports, auxiliary sound, and accessory charging options make the HD trucks both functional for manual labor and attuned to modern, high-tech needs.

The GMC Sierra is a tough truck, but even the toughest truck needs some maintenance and repair from time to time. If you are consulting your 2003 GMC Sierra 2500 HD parts diagram or searching high and low for GMC Sierra HD accessories, you may want to consider an online auto parts retailer like PartsGeek.com. With their online catalog, PartsGeek.com can help you locate the right parts for your 2005 GMC Sierra 2500 HD or help you find the accessories to spruce up that GMC Sierra HD for sale in your front yard.