Select a Category

Need GMC Sierra 1500 Parts?

For decades, GMC has been selling high quality, dependable, and rugged pickup trucks for all types of work. Originally just the namesake for a high end trim package for the GMC C/K pickup truck line, the GMC Sierra ended up as its own pickup, replacing the C/K line in 1988. Since then it has become one of the most popular full size pickups trucks available today. A truck for the more elegant drivers, the GMC Sierra mixes heavy duty reliability with comfort and style. The 1500 model in the GMC Sierra line represents its half-ton truck for light-duty work purposes. Unfortunately, even the most rugged trucks like the GMC Sierra 1500 experience wear and tear. Luckily, 1A Auto provides premium GMC Sierra 1500 aftermarket replacement parts to replace your worn and broken OEM parts. Our GMC Sierra 1500 parts are built to last, so you can keep your GMC Sierra 1500 running in fine shape. We provide GMC Sierra 1500 carpeting, mirrors, made to order headliners, radiators, fuel injectors, exhaust manifolds, and more. Let us at 1A Auto Parts supply the replacement parts you need to keep your truck working as hard as you do.

Our product development team spends over 8,000 hours a year researching the best auto parts, and they are carefully selected by our trained engineers so you can rest assured that you are getting the correct, high quality part you need for your GMC Sierra 1500, at a discount price. If we wouldn't put the part in our own vehicles, we won't sell them to anyone else. A new aftermarket replacement GMC Sierra 1500 part from 1A Auto will save you 30-50% on average over a comparable new OEM replacement GMC Sierra 1500 part that you would get at a dealership, and our new aftermarket GMC Sierra 1500 parts are also extremely durable and reliable. Don't overpay for GMC Sierra 1500 parts and save yourself from a lot of potential headaches by shopping at 1A Auto.

You can shop for all of your GMC Sierra 1500 auto parts online and buy safely and securely right here on our website, or you can call our customer service toll free at 888-844-3393 if you have any questions about any of our parts, or to buy over the phone. With over 150 years combined experience, 1A Auto's customer service representatives are the most qualified to answer your questions about all of our GMC Sierra 1500 truck parts. Our representative’s answer 99.9% of phone calls in less than one minute and emails are responded to within the hour because we know you need answers quickly to get your beloved GMC Sierra 1500 back in working order again. We also know you want your part fast for the same reason; 98% of in stock GMC Sierra 1500 parts ship from our warehouse within one business day so that you can get back on the road in no time, and all ground shipping in the continental U.S. is completely free. And, in the unlikely case that you are unhappy with your GMC Sierra 1500 auto part for any reason, 1A Auto also offers the only No Hassle return policy for unused items in the industry. Simply put, our competitors can't beat the 1A Advantage. Don't just take it from us - take it from over 50,000 satisfied customers!

Don't settle for less and let faulty equipment ruin your drive - order from 1A Auto today and get your replacement aftermarket GMC Sierra 1500 auto parts delivered fast. If you happen to be an enthusiastic GMC Sierra 1500 truck owner, have a deep passion, or just want to learn more about it, continue reading below for a look at the Sierra line’s history and some fun facts.

GMC before the Sierra

The Sierra and its twin, the Silverado, have been nearly identical since their inception. GMC identified their full-size pickup trucks as the C/K model line ("C" being capable of two-wheel drive and "K" being capable of four-wheel drive) and in 1962 began numbering each model with a 15, 25, or 35 to represent a half ton, three-quarter ton, or one ton model, respectively. Like the Silverado, the Sierra was introduced in 1975 as the nameplate for a high-end trim package on the C/K models. Available as the Sierra, Sierra Grande, High Sierra, and Sierra Classic, more than ten years later, in 1988, the newly redesigned and refurbished pickup truck line was stamped with the Sierra name, switched the identifying number from 15 to 1500, and became one of the most popular full-size pickup trucks available.

The Sierra Evolved

The 1500 featured in 1988 as the base model for the newly established Sierra line with a 160 horsepower 4.3L V6 engine. The Sierra would continue to improve with a more upscale look and feel than the Silverado. Some of the more impressive options at the time include an upgraded stereo, dual cup holders, guard beams, four-wheel antilock brakes, and a more spacious and comfortable interior. In 1996, the Vortec engines were introduced, providing a substantial increase in power that ranged from 200 to 290 horsepower.  In 1999, another redesigned truck was introduced, and GMC dubbed any previous versions as the "Classic Sierra." The newer models had 200 horsepower with a 4.3L V6 and 255 horsepower with the 4.8L V8. It featured a brand new towing and hauling system that was available for four-speed automatics and five-speed manuals. After receiving another redesign in 2007, GMT 900 HD model emphasized fuel economy and only included automatics. The exterior of the GMC Sierra became more aerodynamic with smaller gaps and a steeper windshield. The V8 engines output more power and included an active fuel management feature.

Today, the Sierra is available in three trims: Sierra-Base, SLE, and SLT. Complete with powerful 4.3L V6 or 5.3L V8 EcoTec3 direct injection engines, the GMC Sierra has further improved its fuel economy. The Sierra also includes a six-speed automatic transmission, a high-strength steel frame, and is capable of tugging up to 7,600 pounds with the V6 and 11,200 pounds with the V8. A truck for the more elegant drivers, the interior of the Sierra is reminiscent of an SUV rather than a truck, featuring more ergonomically designed controls rather than purely functional knobs and switches. A truck for the more elegant drivers, the GMC Sierra mixes heavy duty reliability with comfort and style.

GMC is a registered trademark of General Motors Company. 1A Auto is not affiliated with or sponsored by GMC or General Motors Company. See all trademarks.

Same Day Shipping

Need your part faster? Choose expedited shipping at checkout.

Guaranteed To Fit

Highest quality, direct fit replacement auto parts enforced to the strictest product standards.

USA Customer Support

Exceeding customers' expectations, our team of passionate auto enthusiasts are here to help.

Instructional Video Library

Thousands of how-to auto repair videos to guide you step-by-step through your repair.

Before proceeding,

select your Vehicle, to verify this Part will fit.

This part will only fit a vehicle with these options.