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Do I need to use a 2015 GMC Sierra OEM battery?

I need to replace the battery in my Sierra. I’m wondering, do I need to use the exact same battery that it came with? Do I need to use a 2015 GMC Sierra OEM battery?

avatar
Patrick Price · Updated on
Reviewed by Shannon Martin, Licensed Insurance Agent.
You do not need to use the exact 2015 GMC Sierra OEM battery—there are plenty of aftermarket batteries that offer the same amperage and are the same relative size.
Depending on the trim level and package that a given Sierra has, they’ll have slightly different engine specs—which is what will determine their battery needs.
Here’s a quick breakdown of the amperage, voltage, and size you’ll need, based on the different types of GMC Sierra engine:
  • V8 6.2L engine (alt): Cold Cranking Amps: 730. Size Group: 48. Voltage: 12
  • V8 6.2L engine: Cold Cranking Amps: 720. Size Group: 94R. Voltage: 12
  • V8 5.3L engine (alt): Cold Cranking Amps: 730. Size Group: 48. Voltage: 12
  • V8 5.3L engine: Cold Cranking Amps: 720. Size Group: 94R. Voltage: 12
  • V6 4.3L engine: Cold Cranking Amps: 730. Size Group: 48. Voltage: 12
Stick to those size groups and CCA ratings, and you should be good to go! Just make sure to only use car batteries that meet those specific requirements.
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