Raya Energy
Fitment recommendation

2006 GMC Sierra battery

Recommended fit · Group 65 · Flooded lead-acid.

This is an estimated fit inferred from the vehicle class — not verified for this exact trim, engine and model year. Confirm the group size on your current battery's label or owner's manual before buying, or contact us to check.

Standard engine

BCI Group 65Flooded lead-acid650+ CCAEstimated fit
65-XD-Z
Flooded·Group 65

65-XD-Z

850 CCA138 min RC80 Ah

Frequently asked about the 2006 GMC Sierra

What battery does a 2006 GMC Sierra take?
The 2006 GMC Sierra is typically fitted with a BCI Group 65 battery — Flooded lead-acid chemistry recommended. The Raya Energy catalog has 1 matching ZITEX SKU.
How many CCA does a 2006 GMC Sierra need?
OEM specifies at least 650 CCA (cold cranking amps). In Canadian winters, anywhere from 650 to 780 CCA is sensible — higher CCA gives more starting headroom on the coldest mornings without affecting normal operation.
Does my 2006 GMC Sierra need AGM?
AGM isn't required for the standard 2006 GMC Sierra fitments listed above — flooded chemistry is fine. AGM is still a sensible upgrade for cold-climate use or high-accessory-load vehicles.

Adjacent model years

2004 GMC Sierra2005 GMC Sierra2007 GMC Sierra2008 GMC Sierra