OEM 2015 GMC Sierra 2500 HD Parts
Select The Trim & Engine Of Your Vehicle Below
Factory OEM parts for the 2015 GMC Sierra 2500 HD, at up to 40% off dealer prices. Pick your trim and engine below or search by part number or VIN.
If you are keeping a heavy duty pickup on the road, the fastest way to get the right part the first time is to start from the exact model year. GMT900 HD through 2014, K2XX HD from 2015 to 2019, and the T1XX HD from 2020.
Warranty is the quiet argument for factory parts. A genuine GM component carries GM's coverage, and on anything that touches the powertrain or the emissions system that coverage is worth more than the price difference on the invoice.
The 2015 Sierra 2500 HD sits mid-run, which usually means the parts catalog was settled, but option packages and trim still split part numbers within the model year. 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 2500 HD are water pumps and thermostats, exhaust manifolds, transfer case components, fifth wheel and gooseneck hardware and trailer brake controllers. 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.
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. Parts for the 2014 Sierra 2500 HD and the 2016 Sierra 2500 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.
