2012 GMC Canyon Alternators

Genuine GM alternators for the 2012 GMC Canyon, at wholesale prices. Alternator output rating varies by electrical load, so a truck with a tow package or upfit wiring takes a different unit. GMT355 through 2012, the 31XX mid-size from 2015 to 2022, and a new generation from 2023. No 2013 or 2014 model years.

What sends people here

A battery light, dimming headlights at idle, or a no-start after a short drive. On a mid-size pickup, box length and cab style drive more part number splits here than the engine does.

What you get ordering from us

• Factory sourced. These alternators are built to GM's own drawing by the supplier GM contracted.
• No guessing. Our VIN lookup resolves the near-identical alternators numbers for you.
• Ships from Dallas. Alternators ordered by 3pm Central go out the same business day.
• Straightforward returns. No restocking games on alternators that did not fit.

Before you order

Aftermarket versions are often close enough to install and far enough off to cause a repeat repair. Option packages divide this catalog more than model years do. Send the VIN and skip the problem. Our Dallas location means most of the country is inside a two or three day ground window.