Shop Genuine 2015 GMC Sierra 3500 HD Parts
Select The Trim & Engine Of Your Vehicle Below
Factory OEM parts for the 2015 GMC Sierra 3500 HD, at up to 40% off dealer prices. Pick your trim and engine below or search by part number or VIN.

Sourcing parts for a heavy duty pickup comes down to matching the right generation, and that is where most orders go wrong. One-ton heavy duty truck in single and dual rear wheel and chassis cab form.
For 2015 the underlying design was carried over, so the parts that split are the ones tied to options, trim and build date rather than platform. Heavy duty trucks split on cab and chassis configuration, single versus dual rear wheels, and gas versus diesel, and the catalog will often show several options for the same nominal part.
The parts we ship most for the 2015 GMC Sierra 3500 HD are EGR coolers, front hub assemblies, leaf springs and shackles, steering linkage and drag links and brake rotors and calipers. Every part listed here is a genuine GM component with the factory part number, not an aftermarket reproduction. 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.
If you are replacing a part that failed early, it is worth checking whether GM issued a revised version. Quite a few components carry an updated part number that supersedes the original, and ordering by the old number without checking means installing the same design that already failed once.
Send us your VIN before you order and our parts specialists will confirm the exact part number for your vehicle. Orders placed by 2pm Central usually ship the same business day from our Dallas warehouse, which keeps transit times short across most of the country. If you are servicing more than one vehicle from that year, our 2015 GMC catalog covers the rest of the lineup.
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.



