2018 Chevrolet Silverado 3500 HD OEM Parts and Accessories
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That locks in your vehicle so every part we show fits. Genuine GM parts at up to 40% off dealer prices.
Getting parts right on a heavy duty pickup starts with knowing which generation you are working on. One-ton heavy duty truck available in single and dual rear wheel and as a chassis cab.
The parts we ship most for the 2018 Chevrolet Silverado 3500 HD are turbo and charge air components, fuel injectors and lines, glow plugs and controllers, water pumps and thermostats and exhaust manifolds. These are genuine GM parts, engineered by the team that built the vehicle and held to the tolerances the original calibration assumed. On a heavy duty pickup these are the components that carry load and heat, and they are where an aftermarket substitute costs you the job twice.
One thing worth knowing about buying OEM: the part number ties back to GM's own engineering records, so when a component is revised the supersession is documented rather than guessed at. Aftermarket catalogs have no equivalent, which is why a listing that says it fits a range of years is often wrong at the edges.
The 2018 model year falls inside an established production run. Most part numbers had settled by then, but drivetrain and package choices still divide the catalog. Diesel and gas trucks share a badge and very little else through the cooling, exhaust and fuel systems.
Run your VIN before ordering. It takes a few seconds and it is the difference between installing the part and shipping it back. We ship from Dallas, and in stock orders placed by 2pm Central usually go out the same business day. Parts for the 2017 Silverado 3500 HD and the 2019 Silverado 3500 HD are listed separately, because the differences between adjacent years are real.
We specialize in GM vehicles that are 10 to 15 years old, and we often carry new-in-box parts for older models too. Discontinued parts are a normal part of the OEM business. When GM stops making a part and our stock is gone, that is the end of the line for that OEM part. We thank you in advance for understanding. The GM Parts Club advantage: our massive buying power lets us stock deep on the parts GM owners need, in our huge warehouse in Dallas, Texas.
