2012 GMC Sierra 2500 HD Starters

Genuine GM starters for the 2012 GMC Sierra 2500 HD, at wholesale prices. Starter part numbers split on engine and transmission combination more than on model year. GMT900 HD through 2014, K2XX HD from 2015 to 2019, and the T1XX HD from 2020.

How you know

A single click, slow crank, or intermittent no-start when hot. On a heavy duty pickup, box length and cab style drive more part number splits here than the engine does.

Why order factory

• We catch the wrong part before you do. VIN verification is free on every starters order.
• Fast out the door. In stock starters ship within hours, not days, from Dallas.
• No hassle returns. If the starters is not right, send it back.
• Warranty intact. OEM starters keep coverage that an aftermarket part can void.
• Wholesale pricing. Most starters numbers land well below dealer list.

Confirming fitment

Materials and coatings are specified, not approximated, which is why factory parts last through more heat cycles. Check the VIN before ordering anything that has to bolt to something else. Shipping is calculated on real weight and distance, which usually beats a padded flat rate.