2021 GMC Sierra Accessories & Parts

Today’s pickup trucks are no longer perceived as bare-bones workhorses. While being more than capable of handling just about any big job, they are luxurious and well-equipped vehicles. It is the GMC Sierra that started this trend by debuting the upscale Denali model back in the early 2000s. Twenty years later, the GMC lives up to the expectations, with both light-duty Sierra 1500 and heavy-duty Sierra 2500 and 3500 models built with comfort, tech, styling, and performance expected from a pioneer of premium pickups. Sure, this truck comes in different flavors, including the off-road-focused AT4 trim, and is offered in various cab configurations, bed lengths, powertrains, and optional packages. It covers a massive range of buyers’ needs but you are sure to place unique demands on your rig. We have a plethora of 2021 GMC Sierra accessories to tailor it to your needs and the right parts to keep it in perfect operating condition.

The main changes for the 2021 model year are aimed at those who tow on a regular basis. Both the GMC Sierra 1500 and Sierra HD received camera tech enhancements designed to make the towing experience safer and less stressful. Those who pull long trailers will appreciate the new Trailer Length Indicator that helps the driver make safer lane-change maneuvers. The Jack-Knife Alert system alerts the driver to a possible trailer-to-bumper impact, while Rear Trailer View has been improved with features that ease hooking up and driving in reverse.

Among other improvements to the 2021 GMC Sierra line, there’s the expanded availability of the configurable MultiPro tailgate and new technologies, accessories, and parts added to the equipment lists of some trim levels. Thus, the AT4 gained optional mud-terrain rubber and a high-clearance step, while the Denali now comes standard with surround view and cargo bed cameras. In all weight classes of the GMC Sierra, the top-tier trim level can now be had in the Black Diamond Edition guise, which adds black-painted 20-inch wheels, power-operated steps, an upgraded audio system, and other amenities.

Given both the one-ton Sierra and its 2500HD & 3500HD siblings received total redesigns a couple of years ago and are still fresh, nothing changes mechanically for 2021. As many as five engines are available for the Sierra 1500, with the lineup ranging from a turbocharged inline-four to a Duramax turbodiesel to a big gas-powered V8. When properly equipped, the half-ton Sierra is capable of towing up to 12,200 pounds. Its heavy-duty counterparts are motivated by either a 6.6-liter 401-horsepower gasoline V8 or a Duramax diesel V8 of the same displacement. The latter makes 445 hp and 910 lb-ft of torque and works with a refined 10-speed Allison automatic transmission. This is the best combo for towing duties; when fitted with that powertrain and properly equipped, the 2500HD offers a towing max of 18,500 pounds, while the mightiest 3500HD with dually rear wheels can pull up to 35,500 pounds. Keep your truck in top condition, ready to tow your toys and haul work equipment. We have 2021 GMC Sierra parts and accessories that will keep your vehicle looking and functioning great for many years.

Want to make your 2021 GMC Sierra one of a kind, keep it running at its peak, or turn it into a high-powered beast? Our vast selection of premium accessories and parts ticks all the boxes. Quality is at the heart of everything we do at CARiD, so whatever your project, our brand name products and qualified experts will ensure success. Class. Luxury. Durability. We have it all, and we're always here with everything you need to keep your 2021 GMC Sierra in tip top shape, inside and out.