Your Cart


GMC is well known in the industry for its light & heavy-duty pickup trucks & SUVs. Their vehicles are aimed at the hard-working American who is looking for trucks & utility vehicles that will last them for years of heavy use.

Overall, GMC trucks & SUVs score average on reliability. Certain years stand out as particularly bad, but for the most part, these vehicles can last 200,000 miles or more with proper annual maintenance.

Are GMC parts expensive?

The cost of GMC parts is lower than the industry average, according to a study from Your Mechanic. People who own a GMC truck can expect to pay $7,800 on repair bills & maintenance costs during the vehicle’s first ten years.

Considering they only make trucks (which have bigger parts that are more expensive), being below the industry average is an accomplishment that other American pickup brands like Ford & Chevy can’t claim.

GMC Engines

GMC offers a variety of engines in their trucks & SUVs, & often they are exactly the same as what you would find in a comparably sized Chevrolet. Their engines are considered reliable, but they aren’t perfect.

According to Consumer Reports, about 4% of 2021 GMC Sierra pickup trucks have experienced engine issues. While 4% may seem low, that is a very high percentage for engine failure in the truck’s first year on the road.

GMC with Hood Lifted | GMC Engines For Sale | My Auto Store

The Top 3 Most Popular Used GMC Engines

  1. 2008 Acadia Used Engine
  2. 2009 Acadia Used Engine
  3. 2011 Acadia Used Engine

GMC Transmissions

Like many other General Motors brands, GMCs have their fair share of transmission problems. Acadias built between 2007 & 2008 were especially problematic, usually failing between 75,000-100,000 miles.

More recently, General Motors is replacing transmissions in the 2021 Sierra 1500. Customers reported jerking & sudden shifting, which makes for an uncomfortable drive while putting unnecessary strain on the rest of the vehicle. Transmission problems are usually fixable in the beginning & become more of a problem as time goes on.

GMC Truck on Road | Used GMC Transmissions

The 3 Best-Selling Used GMC Transmissions

  1. 2003 Envoy Used Transmission
  2. 2004 Envoy Used Transmission
  3. 2007 Canyon Used Transmission

Where can I find the best deals on used parts?

Car maintenance and repairs add up quickly. If you’re ready to get your car or truck back on the road without spending a fortune on repair costs, My Auto Store can help!

Browse our massive selection of used auto parts at the lowest prices. Every part from My Auto Store is tested for quality, stored in a climate-controlled warehouse, & covered by our 6-month warranty. From transfer cases to manual transmissions, we’ve got you covered.

Other Brands

Simple modal box
Part Inquiry Form

Click on the contact form to fill out a part request

Contact Form